Version 0.13.1

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,8 @@
+node_modules
+dist
+mobile
+build
+docs
+.git
+.gitea-token
+web-data

.gitignore

@@ -2,3 +2,10 @@ node_modules/
 dist/
 package.json
 .gitea-token
+!mobile/package.json
+# Android-App: Build-Ausgaben, Plugin-Tarball (lädt build.js), Signaturschlüssel
+mobile/vendor/
+mobile/www/
+mobile/android/keystore.properties
+mobile/android/*.jks
+web-data/

Dockerfile

@@ -0,0 +1,29 @@
+# MrTerm Web – die MrTerm-Oberfläche im Browser, selbst gehostet.
+#   docker compose up -d   →   http://<server>:8080 (beim ersten Aufruf Admin-Konto anlegen)
+
+# ---- Build: Server samt ssh2/ws in eine Datei bündeln
+FROM node:22-alpine AS build
+WORKDIR /src
+COPY package.json package-lock.json ./
+RUN npm ci --ignore-scripts --no-audit --no-fund
+COPY src ./src
+RUN npx esbuild src/web/server.js --bundle --platform=node --target=node22 --minify --legal-comments=none \
+      --external:electron --external:cpu-features --external:bufferutil --external:utf-8-validate \
+      --outfile=dist/server.js
+
+# ---- Laufzeit: nur Node, gebündelter Server und die Dateien der Oberfläche
+FROM node:22-alpine
+ENV NODE_ENV=production PORT=8080 DATA_DIR=/data MRTERM_ROOT=/app
+WORKDIR /app
+COPY package.json ./
+COPY --from=build /src/dist/server.js dist/server.js
+COPY src/i18n.js src/i18n.js
+COPY src/renderer src/renderer
+COPY src/web/public src/web/public
+COPY --from=build /src/node_modules/@xterm node_modules/@xterm
+RUN mkdir -p /data && chown node:node /data
+USER node
+VOLUME /data
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=5s CMD wget -qO- http://127.0.0.1:8080/healthz >/dev/null || exit 1
+CMD ["node", "dist/server.js"]

README.md

@@ -2,6 +2,8 @@
 
 A modern SSH, SFTP and RDP client for Windows and Arch Linux / CachyOS. All your servers live in one place and open in tabs: terminals, file transfers and remote desktops.
 
+[<img src="https://raw.githubusercontent.com/ImranR98/Obtainium/main/assets/graphics/badge_obtainium.png" alt="Get it on Obtainium" height="54">](https://apps.obtainium.imranr.dev/redirect?r=obtainium://app/%7B%22id%22%3A%22de.mrterm.app%22%2C%22url%22%3A%22https%3A%2F%2Fgit.mrblake.cc%2FMrBlake%2FMrTerm%22%2C%22author%22%3A%22MrBlake%22%2C%22name%22%3A%22MrTerm%22%2C%22overrideSource%22%3A%22Codeberg%22%7D)
+
 MrTerm is available in **English** and **German**. It follows your system language by default, and you can change it under **Settings → Language**.
 
 ![MrTerm host overview with groups](docs/screenshots/hosts.png)
@@ -27,6 +29,23 @@ sudo pacman -S freerdp gnome-keyring   # use kwallet instead of gnome-keyring on
 ```
 `freerdp` is needed for RDP connections. `gnome-keyring` or `kwallet` lets MrTerm encrypt your saved passwords and keys.
 
+**Android**
+- Install with [Obtainium](https://apps.obtainium.imranr.dev/redirect?r=obtainium://app/%7B%22id%22%3A%22de.mrterm.app%22%2C%22url%22%3A%22https%3A%2F%2Fgit.mrblake.cc%2FMrBlake%2FMrTerm%22%2C%22author%22%3A%22MrBlake%22%2C%22name%22%3A%22MrTerm%22%2C%22overrideSource%22%3A%22Codeberg%22%7D): tap the badge above on your phone, or add `https://git.mrblake.cc/MrBlake/MrTerm` in Obtainium and choose **Forgejo (Codeberg)** as the source. Obtainium then keeps MrTerm up to date.
+- Or download `MrTerm-<version>.apk` from the releases page and install it directly.
+
+## Android app
+
+The Android app is made for phones and focuses on what you need on the go:
+
+- **Hosts** with groups, search and Quick Connect (`user@host:port`)
+- **SSH terminal** in full screen with an extra key row (Esc, Tab, Ctrl, Alt, arrow keys, `|`, `~` …), pinch-to-zoom and several open sessions
+- **Keys**: generate or import SSH keys and copy the public key
+- **Snippets** you can send to the terminal with one tap
+- **LAN sync** with MrTerm on your computer: pair once, and your hosts, groups and snippets appear on the phone. You choose which passwords and keys are shared
+- **App lock** with a password and fingerprint unlock. The vault is encrypted with a key kept in the Android Keystore
+
+RDP, SFTP, port forwarding and VPN are only available in the desktop app.
+
 ## Features
 
 - **Hosts**: nested groups, tags, colors, search and Quick Connect (`user@host:port`, `rdp://host`)
@@ -44,6 +63,7 @@ sudo pacman -S freerdp gnome-keyring   # use kwallet instead of gnome-keyring on
 - **History** of recent connections
 - **Import** from `~/.ssh/config` and from **Devolutions Remote Desktop Manager** (`.rdm`/XML, JSON or CSV)
 - **Backup** export and import
+- **Web version** for your own server (Docker), usable in any browser. See [Web version (Docker)](#web-version-docker)
 - **LAN sync**: keep several MrTerm devices in sync over your local network, end-to-end encrypted and without a server
 - **7 app themes** (Midnight, Navy, Nord, Dracula, Catppuccin, Forest, Light) plus a custom accent color
 - **Encrypted vault** using your operating system's keyring (Windows DPAPI, Linux libsecret/KWallet)
@@ -63,6 +83,24 @@ sudo pacman -S freerdp gnome-keyring   # use kwallet instead of gnome-keyring on
 | ![Settings](docs/screenshots/settings.png) | |
 | **Settings**: language, app lock, LAN sync and themes | |
 
+## Web version (Docker)
+
+MrTerm also runs as a self-hosted web app, similar to Termix: you use the familiar MrTerm interface in the browser, from any computer.
+
+```bash
+curl -O https://git.mrblake.cc/MrBlake/MrTerm/raw/branch/main/docker-compose.yml
+docker compose up -d
+```
+
+Then open `http://<your-server>:8080` and create the administrator account. As an administrator you can add more users under **Settings → Account**.
+
+- **Included:** hosts and groups, SSH terminal tabs, SFTP file manager (upload by button or drag & drop, download to your computer), keys, snippets, known hosts, Docker, firewall and network management, themes.
+- **Not included:** RDP, VPN, port forwarding, LAN sync and the app lock. These need direct access to your computer.
+- **Security:** every user has their own vault, encrypted with a key that only their login password can unlock. The server stores no readable passwords or keys. If a user forgets their password, their vault cannot be recovered.
+- **HTTPS:** put MrTerm behind a reverse proxy with HTTPS (Traefik, Caddy, nginx …) before you use it over the internet, and set `TRUST_PROXY=1` in `docker-compose.yml`. The proxy must forward WebSockets.
+- **Data** lives in the `mrterm-data` volume (`/data` in the container). Back it up regularly. A restored vault still needs its user's password to open.
+- **SSH connections** start from the server, so the server must be able to reach your hosts.
+
 ## Getting started
 
 1. Click **New host**, enter the address, username and password or key, and click **Save**.
@@ -196,7 +234,16 @@ In VS Code terminals, unset `ELECTRON_RUN_AS_NODE` first.
 
 If the build fails with `EACCES: permission denied`, some files in `node_modules` belong to root. Run `sudo chown -R $USER: node_modules` and don't run npm with `sudo`.
 
-**Publishing a release**: `./scripts/release-all.sh` asks for the version and release notes, commits and pushes the version, builds Windows + Arch/CachyOS and uploads everything to Gitea. It reads the token from `GITEA_TOKEN` or from `.gitea-token`, which is not committed.
+**Android app** (`mobile/`): Capacitor with [capacitor-nodejs](https://github.com/hampoelz/Capacitor-NodeJS). The phone runs the same Node modules as the desktop app (`src/main/ssh.js`, `store.js`, `sync.js` …), bundled with esbuild; the phone UI lives in `mobile/web/`.
+```bash
+cd mobile
+node build.js --setup     # once: downloads the Node.js plugin (checksum-verified) and installs dependencies
+node build.js --apk       # builds signed APKs into dist/ (needs JDK 21 + Android SDK, see JAVA_HOME / ANDROID_HOME)
+../node_modules/.bin/electron dev/electron-dev.js   # try the phone UI on the desktop (after node build.js)
+```
+APKs are signed with `mobile/android/keystore.properties` and the keystore it points to. Both are not committed. Keep a backup, because Android only installs updates signed with the same key.
+
+**Publishing a release**: `./scripts/release-all.sh` asks for the version and release notes, commits and pushes the version, builds Windows + Arch/CachyOS + Android and uploads everything to Gitea. It reads the token from `GITEA_TOKEN` or from `.gitea-token`, which is not committed.
 
 **Translations** live in [`src/i18n.js`](src/i18n.js). The English text in the code is the key. To add a language, add a dictionary and list it in `LANGUAGES`.
 

docker-compose.yml

@@ -0,0 +1,22 @@
+# MrTerm Web
+#   docker compose up -d
+# Danach http://<server>:8080 öffnen und das Admin-Konto anlegen.
+# Hinter einem Reverse-Proxy mit HTTPS (empfohlen): TRUST_PROXY=1 setzen und den Port nur lokal freigeben.
+services:
+  mrterm:
+    build:
+      # Baut direkt aus dem Repository – kein Klonen nötig. Alternativ "context: ." in einem Klon.
+      context: https://git.mrblake.cc/MrBlake/MrTerm.git
+    image: mrterm-web
+    container_name: mrterm
+    restart: unless-stopped
+    ports:
+      - "8080:8080"
+    environment:
+      - TZ=Europe/Berlin
+      # - TRUST_PROXY=1
+    volumes:
+      - mrterm-data:/data
+
+volumes:
+  mrterm-data:

mobile/android/.gitignore

@@ -0,0 +1,101 @@
+# Using Android gitignore template: https://github.com/github/gitignore/blob/HEAD/Android.gitignore
+
+# Built application files
+*.apk
+*.aar
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+#  Uncomment the following line in case you need and you don't have the release build type files in your app
+# release/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+.cxx/
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+# Android Profiling
+*.hprof
+
+# Cordova plugins for Capacitor
+capacitor-cordova-android-plugins
+
+# Copied web assets
+app/src/main/assets/public
+
+# Generated Config files
+app/src/main/assets/capacitor.config.json
+app/src/main/assets/capacitor.plugins.json
+app/src/main/res/xml/config.xml

mobile/android/app/.gitignore

@@ -0,0 +1,2 @@
+/build/*
+!/build/.npmkeep

mobile/android/app/build.gradle

@@ -0,0 +1,82 @@
+apply plugin: 'com.android.application'
+
+android {
+    namespace = "de.mrterm.app"
+    compileSdk = rootProject.ext.compileSdkVersion
+    defaultConfig {
+        applicationId "de.mrterm.app"
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        // Version kommt aus der package.json des Desktop-Projekts (build.js setzt -PmrtermVersion)
+        def v = (project.findProperty('mrtermVersion') ?: '0.0.1').toString()
+        def p = v.tokenize('.-')
+        versionCode (p[0].toInteger() * 10000 + p[1].toInteger() * 100 + p[2].toInteger())
+        versionName v
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        aaptOptions {
+             // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
+             // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
+            ignoreAssetsPattern = '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
+        }
+    }
+    // Signatur: keystore.properties (nicht im Repo) mit storeFile, storePassword, keyAlias, keyPassword
+    def ksFile = rootProject.file('keystore.properties')
+    signingConfigs {
+        release {
+            if (ksFile.exists()) {
+                def ks = new Properties()
+                ksFile.withInputStream { ks.load(it) }
+                storeFile rootProject.file(ks['storeFile'])
+                storePassword ks['storePassword']
+                keyAlias ks['keyAlias']
+                keyPassword ks['keyPassword']
+            }
+        }
+    }
+    // Eine APK je Prozessorarchitektur (libnode ist groß); Obtainium wählt die passende automatisch
+    splits {
+        abi {
+            enable true
+            reset()
+            include 'arm64-v8a', 'armeabi-v7a'
+            universalApk false
+        }
+    }
+    buildTypes {
+        release {
+            if (ksFile.exists()) signingConfig signingConfigs.release
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+repositories {
+    flatDir{
+        dirs '../capacitor-cordova-android-plugins/src/main/libs', 'libs'
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation "androidx.appcompat:appcompat:$androidxAppCompatVersion"
+    implementation "androidx.coordinatorlayout:coordinatorlayout:$androidxCoordinatorLayoutVersion"
+    implementation "androidx.core:core-splashscreen:$coreSplashScreenVersion"
+    implementation project(':capacitor-android')
+    implementation "androidx.biometric:biometric:1.1.0"
+    testImplementation "junit:junit:$junitVersion"
+    androidTestImplementation "androidx.test.ext:junit:$androidxJunitVersion"
+    androidTestImplementation "androidx.test.espresso:espresso-core:$androidxEspressoCoreVersion"
+    implementation project(':capacitor-cordova-android-plugins')
+}
+
+apply from: 'capacitor.build.gradle'
+
+try {
+    def servicesJSON = file('google-services.json')
+    if (servicesJSON.text) {
+        apply plugin: 'com.google.gms.google-services'
+    }
+} catch(Exception e) {
+    logger.info("google-services.json not found, google-services plugin not applied. Push Notifications won't work")
+}

mobile/android/app/capacitor.build.gradle

@@ -0,0 +1,19 @@
+// DO NOT EDIT THIS FILE! IT IS GENERATED EACH TIME "capacitor update" IS RUN
+
+android {
+  compileOptions {
+      sourceCompatibility JavaVersion.VERSION_21
+      targetCompatibility JavaVersion.VERSION_21
+  }
+}
+
+apply from: "../capacitor-cordova-android-plugins/cordova.variables.gradle"
+dependencies {
+    implementation project(':capacitor-nodejs')
+
+}
+
+
+if (hasProperty('postBuildExtras')) {
+  postBuildExtras()
+}

mobile/android/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

mobile/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode|navigation|density"
+            android:name=".MainActivity"
+            android:label="@string/title_activity_main"
+            android:theme="@style/AppTheme.NoActionBarLaunch"
+            android:launchMode="singleTask"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true">
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+        </activity>
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths"></meta-data>
+        </provider>
+    </application>
+
+    <!-- Permissions -->
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
+    <uses-permission android:name="android.permission.USE_BIOMETRIC" />
+</manifest>

mobile/android/app/src/main/java/de/mrterm/app/MainActivity.java

@@ -0,0 +1,45 @@
+package de.mrterm.app;
+
+import android.os.Bundle;
+import android.view.View;
+import android.webkit.WebView;
+
+import androidx.activity.OnBackPressedCallback;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+
+import com.getcapacitor.BridgeActivity;
+
+public class MainActivity extends BridgeActivity {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        registerPlugin(MrTermNative.class);
+        super.onCreate(savedInstanceState);
+        WebView web = getBridge().getWebView();
+
+        // Zurück-Taste an die Oberfläche geben (schließt Dialoge, verlässt das Terminal …)
+        getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                web.evaluateJavascript("window.mrtermBack && window.mrtermBack()", null);
+            }
+        });
+
+        // Edge-to-Edge: Ränder für Status- und Navigationsleiste setzt diese Ansicht. Den Platz für die Tastatur
+        // schafft Android/WebView selbst – hier nur melden, ob sie offen ist (sonst würde doppelt verkleinert).
+        View parent = (View) web.getParent();
+        parent.setBackgroundColor(0xFF14161D);
+        final boolean[] imeOpen = { false };
+        ViewCompat.setOnApplyWindowInsetsListener(parent, (v, insets) -> {
+            Insets bars = insets.getInsets(WindowInsetsCompat.Type.systemBars() | WindowInsetsCompat.Type.displayCutout());
+            boolean open = insets.isVisible(WindowInsetsCompat.Type.ime());
+            v.setPadding(bars.left, bars.top, bars.right, open ? 0 : bars.bottom);
+            if (open != imeOpen[0]) {
+                imeOpen[0] = open;
+                web.evaluateJavascript("window.mrtermIme && window.mrtermIme(" + open + ")", null);
+            }
+            return insets;
+        });
+    }
+}

mobile/android/app/src/main/java/de/mrterm/app/MrTermNative.java

@@ -0,0 +1,261 @@
+package de.mrterm.app;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.net.wifi.WifiManager;
+import android.os.Build;
+import android.provider.Settings;
+import android.security.keystore.KeyGenParameterSpec;
+import android.security.keystore.KeyPermanentlyInvalidatedException;
+import android.security.keystore.KeyProperties;
+import android.util.Base64;
+
+import androidx.biometric.BiometricManager;
+import androidx.biometric.BiometricPrompt;
+import androidx.core.content.ContextCompat;
+import androidx.fragment.app.FragmentActivity;
+
+import com.getcapacitor.JSObject;
+import com.getcapacitor.Plugin;
+import com.getcapacitor.PluginCall;
+import com.getcapacitor.PluginMethod;
+import com.getcapacitor.annotation.CapacitorPlugin;
+
+import java.security.KeyStore;
+import java.security.SecureRandom;
+import java.util.Locale;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.GCMParameterSpec;
+
+/**
+ * Plattformfunktionen für MrTerm:
+ * - Tresorschlüssel: zufällige 32 Byte, verpackt mit einem nicht exportierbaren AES-Schlüssel im Android Keystore
+ * - Fingerabdruck: Geheimnis, das nur nach erfolgreicher biometrischer Bestätigung entschlüsselt werden kann
+ * - Multicast-Lock (sonst verwirft WLAN die UDP-Broadcasts der LAN-Synchronisation), Zwischenablage, Gerätename
+ */
+@CapacitorPlugin(name = "MrTermNative")
+public class MrTermNative extends Plugin {
+    private static final String KS = "AndroidKeyStore";
+    private static final String VAULT_ALIAS = "mrterm_vault";
+    private static final String BIO_ALIAS = "mrterm_bio";
+    private WifiManager.MulticastLock multicastLock;
+
+    private SharedPreferences prefs() {
+        return getContext().getSharedPreferences("mrterm", Context.MODE_PRIVATE);
+    }
+
+    private static String b64(byte[] b) { return Base64.encodeToString(b, Base64.NO_WRAP); }
+    private static byte[] unb64(String s) { return Base64.decode(s, Base64.NO_WRAP); }
+
+    private SecretKey keystoreKey(String alias, boolean userAuth) throws Exception {
+        KeyStore ks = KeyStore.getInstance(KS);
+        ks.load(null);
+        if (ks.containsAlias(alias)) return (SecretKey) ks.getKey(alias, null);
+        KeyGenerator kg = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, KS);
+        KeyGenParameterSpec.Builder spec = new KeyGenParameterSpec.Builder(alias, KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
+            .setBlockModes(KeyProperties.BLOCK_MODE_GCM)
+            .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE)
+            .setKeySize(256);
+        if (userAuth) {
+            spec.setUserAuthenticationRequired(true).setInvalidatedByBiometricEnrollment(true);
+            if (Build.VERSION.SDK_INT >= 30) spec.setUserAuthenticationParameters(0, KeyProperties.AUTH_BIOMETRIC_STRONG);
+        }
+        kg.init(spec.build());
+        return kg.generateKey();
+    }
+
+    private static void deleteKey(String alias) {
+        try { KeyStore ks = KeyStore.getInstance(KS); ks.load(null); ks.deleteEntry(alias); } catch (Exception ignored) {}
+    }
+
+    // ---------- Tresorschlüssel ----------
+    @PluginMethod
+    public void vaultKey(PluginCall call) {
+        try {
+            SecretKey k = keystoreKey(VAULT_ALIAS, false);
+            String stored = prefs().getString("vaultKey", null);
+            byte[] plain;
+            if (stored == null) {
+                plain = new byte[32];
+                new SecureRandom().nextBytes(plain);
+                Cipher c = Cipher.getInstance("AES/GCM/NoPadding");
+                c.init(Cipher.ENCRYPT_MODE, k);
+                prefs().edit().putString("vaultKey", b64(c.getIV()) + ":" + b64(c.doFinal(plain))).apply();
+            } else {
+                String[] p = stored.split(":");
+                Cipher c = Cipher.getInstance("AES/GCM/NoPadding");
+                c.init(Cipher.DECRYPT_MODE, k, new GCMParameterSpec(128, unb64(p[0])));
+                plain = c.doFinal(unb64(p[1]));
+            }
+            JSObject r = new JSObject();
+            r.put("key", b64(plain));
+            call.resolve(r);
+        } catch (Exception e) {
+            call.reject("Keystore: " + e.getMessage());
+        }
+    }
+
+    // ---------- Fingerabdruck ----------
+    @PluginMethod
+    public void bioAvailable(PluginCall call) {
+        int s = BiometricManager.from(getContext()).canAuthenticate(BiometricManager.Authenticators.BIOMETRIC_STRONG);
+        JSObject r = new JSObject();
+        r.put("available", s == BiometricManager.BIOMETRIC_SUCCESS);
+        r.put("enrolled", prefs().getString("bio", null) != null);
+        call.resolve(r);
+    }
+
+    @PluginMethod
+    public void bioEnroll(PluginCall call) {
+        try {
+            deleteKey(BIO_ALIAS);
+            SecretKey k = keystoreKey(BIO_ALIAS, true);
+            Cipher c = Cipher.getInstance("AES/GCM/NoPadding");
+            c.init(Cipher.ENCRYPT_MODE, k);
+            prompt(call, c, call.getString("title", "MrTerm"), call.getString("cancel", "Cancel"), (cipher) -> {
+                byte[] secret = new byte[32];
+                new SecureRandom().nextBytes(secret);
+                byte[] ct = cipher.doFinal(secret);
+                prefs().edit().putString("bio", b64(cipher.getIV()) + ":" + b64(ct)).apply();
+                JSObject r = new JSObject();
+                r.put("secret", b64(secret));
+                call.resolve(r);
+            });
+        } catch (Exception e) {
+            call.reject(e.getMessage());
+        }
+    }
+
+    @PluginMethod
+    public void bioUnlock(PluginCall call) {
+        String stored = prefs().getString("bio", null);
+        if (stored == null) { call.reject("not-enrolled"); return; }
+        try {
+            String[] p = stored.split(":");
+            SecretKey k = keystoreKey(BIO_ALIAS, true);
+            Cipher c = Cipher.getInstance("AES/GCM/NoPadding");
+            c.init(Cipher.DECRYPT_MODE, k, new GCMParameterSpec(128, unb64(p[0])));
+            prompt(call, c, call.getString("title", "MrTerm"), call.getString("cancel", "Cancel"), (cipher) -> {
+                JSObject r = new JSObject();
+                r.put("secret", b64(cipher.doFinal(unb64(p[1]))));
+                call.resolve(r);
+            });
+        } catch (KeyPermanentlyInvalidatedException e) {
+            // Neuer Fingerabdruck registriert → Schlüssel ungültig, Nutzer muss neu einrichten
+            prefs().edit().remove("bio").apply();
+            deleteKey(BIO_ALIAS);
+            call.reject("invalidated");
+        } catch (Exception e) {
+            call.reject(e.getMessage());
+        }
+    }
+
+    @PluginMethod
+    public void bioDisable(PluginCall call) {
+        prefs().edit().remove("bio").apply();
+        deleteKey(BIO_ALIAS);
+        call.resolve();
+    }
+
+    private interface CipherUse { void run(Cipher c) throws Exception; }
+
+    private void prompt(PluginCall call, Cipher cipher, String title, String cancel, CipherUse use) {
+        FragmentActivity act = getActivity();
+        act.runOnUiThread(() -> {
+            BiometricPrompt bp = new BiometricPrompt(act, ContextCompat.getMainExecutor(act), new BiometricPrompt.AuthenticationCallback() {
+                @Override
+                public void onAuthenticationSucceeded(BiometricPrompt.AuthenticationResult result) {
+                    try { use.run(result.getCryptoObject().getCipher()); }
+                    catch (Exception e) { call.reject(e.getMessage()); }
+                }
+                @Override
+                public void onAuthenticationError(int code, CharSequence msg) {
+                    call.reject(code == BiometricPrompt.ERROR_USER_CANCELED || code == BiometricPrompt.ERROR_NEGATIVE_BUTTON ? "cancelled" : msg.toString());
+                }
+            });
+            BiometricPrompt.PromptInfo info = new BiometricPrompt.PromptInfo.Builder()
+                .setTitle(title)
+                .setNegativeButtonText(cancel)
+                .setAllowedAuthenticators(BiometricManager.Authenticators.BIOMETRIC_STRONG)
+                .build();
+            bp.authenticate(info, new BiometricPrompt.CryptoObject(cipher));
+        });
+    }
+
+    // ---------- Sonstiges ----------
+    @PluginMethod
+    public void info(PluginCall call) {
+        String name = null;
+        try { name = Settings.Global.getString(getContext().getContentResolver(), "device_name"); } catch (Exception ignored) {}
+        if (name == null || name.isEmpty()) name = Build.MANUFACTURER + " " + Build.MODEL;
+        JSObject r = new JSObject();
+        r.put("device", name);
+        r.put("locale", Locale.getDefault().toLanguageTag());
+        try { r.put("version", getContext().getPackageManager().getPackageInfo(getContext().getPackageName(), 0).versionName); }
+        catch (Exception e) { r.put("version", "0.0.0"); }
+        call.resolve(r);
+    }
+
+    @PluginMethod
+    public void multicast(PluginCall call) {
+        boolean on = Boolean.TRUE.equals(call.getBoolean("on", true));
+        WifiManager wm = (WifiManager) getContext().getApplicationContext().getSystemService(Context.WIFI_SERVICE);
+        if (on && multicastLock == null && wm != null) {
+            multicastLock = wm.createMulticastLock("mrterm-sync");
+            multicastLock.setReferenceCounted(false);
+            multicastLock.acquire();
+        } else if (!on && multicastLock != null) {
+            multicastLock.release();
+            multicastLock = null;
+        }
+        call.resolve();
+    }
+
+    // Design: Hintergrund hinter Status-/Navigationsleiste und dunkle bzw. helle Symbole
+    @PluginMethod
+    public void bars(PluginCall call) {
+        final boolean light = Boolean.TRUE.equals(call.getBoolean("light", false));
+        final String color = call.getString("color", "#14161d");
+        getActivity().runOnUiThread(() -> {
+            try {
+                android.view.View parent = (android.view.View) getBridge().getWebView().getParent();
+                parent.setBackgroundColor(android.graphics.Color.parseColor(color));
+                androidx.core.view.WindowInsetsControllerCompat c = androidx.core.view.WindowCompat.getInsetsController(getActivity().getWindow(), parent);
+                c.setAppearanceLightStatusBars(light);
+                c.setAppearanceLightNavigationBars(light);
+            } catch (Exception ignored) {}
+        });
+        call.resolve();
+    }
+
+    @PluginMethod
+    public void background(PluginCall call) {
+        getActivity().runOnUiThread(() -> getActivity().moveTaskToBack(true));
+        call.resolve();
+    }
+
+    @PluginMethod
+    public void copy(PluginCall call) {
+        ClipboardManager cm = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+        cm.setPrimaryClip(ClipData.newPlainText("MrTerm", call.getString("text", "")));
+        call.resolve();
+    }
+
+    @PluginMethod
+    public void paste(PluginCall call) {
+        ClipboardManager cm = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+        String text = "";
+        if (cm.hasPrimaryClip() && cm.getPrimaryClip().getItemCount() > 0) {
+            CharSequence t = cm.getPrimaryClip().getItemAt(0).coerceToText(getContext());
+            if (t != null) text = t.toString();
+        }
+        JSObject r = new JSObject();
+        r.put("text", text);
+        call.resolve(r);
+    }
+}

mobile/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

mobile/android/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>

mobile/android/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <WebView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

mobile/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

mobile/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

mobile/android/app/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#111728</color>
+</resources>

mobile/android/app/src/main/res/values/strings.xml

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <string name="app_name">MrTerm</string>
+    <string name="title_activity_main">MrTerm</string>
+    <string name="package_name">de.mrterm.app</string>
+    <string name="custom_url_scheme">de.mrterm.app</string>
+</resources>

mobile/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar" parent="Theme.AppCompat.DayNight.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+        <item name="android:background">@null</item>
+    </style>
+
+
+    <style name="AppTheme.NoActionBarLaunch" parent="Theme.SplashScreen">
+        <item name="android:background">@drawable/splash</item>
+    </style>
+</resources>

mobile/android/app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external-path name="my_images" path="." />
+    <cache-path name="my_cache_images" path="." />
+</paths>

mobile/android/build.gradle

@@ -0,0 +1,29 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.13.0'
+        classpath 'com.google.gms:google-services:4.4.4'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+apply from: "variables.gradle"
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

mobile/android/capacitor.settings.gradle

@@ -0,0 +1,6 @@
+// DO NOT EDIT THIS FILE! IT IS GENERATED EACH TIME "capacitor update" IS RUN
+include ':capacitor-android'
+project(':capacitor-android').projectDir = new File('../node_modules/@capacitor/android/capacitor')
+
+include ':capacitor-nodejs'
+project(':capacitor-nodejs').projectDir = new File('../node_modules/capacitor-nodejs/android')

mobile/android/gradle.properties

@@ -0,0 +1,22 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true

mobile/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

mobile/android/gradlew

@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

mobile/android/gradlew.bat

@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

mobile/android/settings.gradle

@@ -0,0 +1,5 @@
+include ':app'
+include ':capacitor-cordova-android-plugins'
+project(':capacitor-cordova-android-plugins').projectDir = new File('./capacitor-cordova-android-plugins/')
+
+apply from: 'capacitor.settings.gradle'

mobile/android/variables.gradle

@@ -0,0 +1,16 @@
+ext {
+    minSdkVersion = 24
+    compileSdkVersion = 36
+    targetSdkVersion = 36
+    androidxActivityVersion = '1.11.0'
+    androidxAppCompatVersion = '1.7.1'
+    androidxCoordinatorLayoutVersion = '1.3.0'
+    androidxCoreVersion = '1.17.0'
+    androidxFragmentVersion = '1.8.9'
+    coreSplashScreenVersion = '1.2.0'
+    androidxWebkitVersion = '1.14.0'
+    junitVersion = '4.13.2'
+    androidxJunitVersion = '1.3.0'
+    androidxEspressoCoreVersion = '3.7.0'
+    cordovaAndroidVersion = '14.0.1'
+}

mobile/build.js

@@ -0,0 +1,105 @@
+// Baut die Android-App.
+//   node build.js --setup   Node.js-Plugin herunterladen (Prüfsumme) und Abhängigkeiten installieren
+//   node build.js           Weboberfläche + Node-Backend nach www/ bauen und ins Android-Projekt synchronisieren
+//   node build.js --apk     zusätzlich signierte Release-APK nach ../dist/MrTerm-<version>.apk bauen
+const fs = require('fs');
+const path = require('path');
+const os = require('os');
+const crypto = require('crypto');
+const { execFileSync } = require('child_process');
+
+const ROOT = path.join(__dirname, '..');
+const WWW = path.join(__dirname, 'www');
+const version = require(path.join(ROOT, 'package.json')).version;
+const run = (cmd, args, opts = {}) => execFileSync(cmd, args, { stdio: 'inherit', cwd: __dirname, ...opts });
+
+const PLUGIN = {
+  url: 'https://github.com/hampoelz/capacitor-nodejs/releases/download/v1.0.0-beta.10/capacitor-nodejs.tgz',
+  file: path.join(__dirname, 'vendor', 'capacitor-nodejs-1.0.0-beta.10.tgz'),
+  sha256: 'cc47cba4190d5e0ea8e2b33f4e9bd47e159570c01571c51214467e4c21e87bd3',
+};
+
+async function setup() {
+  if (!fs.existsSync(PLUGIN.file)) {
+    console.log('Lade capacitor-nodejs …');
+    const res = await fetch(PLUGIN.url);
+    if (!res.ok) throw new Error(`Download fehlgeschlagen: ${res.status}`);
+    fs.mkdirSync(path.dirname(PLUGIN.file), { recursive: true });
+    fs.writeFileSync(PLUGIN.file, Buffer.from(await res.arrayBuffer()));
+  }
+  const sum = crypto.createHash('sha256').update(fs.readFileSync(PLUGIN.file)).digest('hex');
+  if (sum !== PLUGIN.sha256) { fs.rmSync(PLUGIN.file); throw new Error(`Prüfsumme von capacitor-nodejs stimmt nicht (${sum})`); }
+  run('npm', ['install']);
+}
+
+function copy(from, to) {
+  fs.mkdirSync(path.dirname(to), { recursive: true });
+  fs.cpSync(from, to, { recursive: true });
+}
+
+// capacitor-nodejs baut seine Brückenbibliothek mit 4-KB-Seitenausrichtung; neuere Geräte (z. B. Pixel mit
+// 16-KB-Speicherseiten) laden sie dann nicht. Linker-Option einmalig ergänzen.
+function patchPlugin() {
+  const f = path.join(__dirname, 'node_modules', 'capacitor-nodejs', 'android', 'CMakeLists.txt');
+  const s = fs.readFileSync(f, 'utf8');
+  if (!s.includes('max-page-size=16384')) fs.writeFileSync(f, `${s}\ntarget_link_options(native-lib PRIVATE "-Wl,-z,max-page-size=16384")\n`);
+}
+
+function buildWeb() {
+  patchPlugin();
+  fs.rmSync(WWW, { recursive: true, force: true });
+  copy(path.join(__dirname, 'web'), WWW);
+  const nm = path.join(ROOT, 'node_modules', '@xterm');
+  copy(path.join(nm, 'xterm', 'lib', 'xterm.js'), path.join(WWW, 'lib', 'xterm.js'));
+  copy(path.join(nm, 'xterm', 'css', 'xterm.css'), path.join(WWW, 'lib', 'xterm.css'));
+  copy(path.join(nm, 'addon-fit', 'lib', 'addon-fit.js'), path.join(WWW, 'lib', 'addon-fit.js'));
+  copy(path.join(__dirname, 'node_modules', '@capacitor', 'core', 'dist', 'capacitor.js'), path.join(WWW, 'lib', 'capacitor.js'));
+  copy(path.join(ROOT, 'src', 'i18n.js'), path.join(WWW, 'lib', 'i18n.js'));
+  copy(path.join(ROOT, 'src', 'renderer', 'themes.js'), path.join(WWW, 'lib', 'themes.js'));
+  copy(path.join(ROOT, 'src', 'renderer', 'app-themes.css'), path.join(WWW, 'lib', 'app-themes.css'));
+  copy(path.join(ROOT, 'src', 'renderer', 'logo.png'), path.join(WWW, 'logo.png'));
+
+  // Node-Backend inkl. ssh2 in eine Datei bündeln (nodejs-mobile = Node 18)
+  require('esbuild').buildSync({
+    entryPoints: [path.join(__dirname, 'nodejs', 'server.js')],
+    outfile: path.join(WWW, 'nodejs', 'index.js'),
+    bundle: true, platform: 'node', target: 'node18', minify: true, legalComments: 'none',
+    external: ['bridge', 'cpu-features'],
+    alias: { electron: path.join(__dirname, 'nodejs', 'electron-shim.js') },
+    logLevel: 'warning',
+  });
+  fs.writeFileSync(path.join(WWW, 'nodejs', 'package.json'), JSON.stringify({ name: 'mrterm-backend', main: 'index.js' }));
+  run('npx', ['cap', 'sync', 'android']);
+}
+
+function toolchain() {
+  const base = path.join(os.homedir(), '.local', 'share', 'android-toolchain');
+  const env = { ...process.env };
+  env.JAVA_HOME ||= path.join(base, 'jdk');
+  env.ANDROID_HOME ||= path.join(base, 'sdk');
+  if (!fs.existsSync(env.JAVA_HOME) || !fs.existsSync(env.ANDROID_HOME)) throw new Error('JDK/Android-SDK nicht gefunden: JAVA_HOME und ANDROID_HOME setzen');
+  fs.writeFileSync(path.join(__dirname, 'android', 'local.properties'), `sdk.dir=${env.ANDROID_HOME}\n`);
+  return env;
+}
+
+function buildApk() {
+  if (!fs.existsSync(path.join(__dirname, 'android', 'keystore.properties'))) {
+    throw new Error('android/keystore.properties fehlt (Signaturschlüssel). Ohne ihn können Updates nicht installiert werden.');
+  }
+  run('./gradlew', ['--no-daemon', '-q', 'assembleRelease', `-PmrtermVersion=${version}`], { cwd: path.join(__dirname, 'android'), env: toolchain() });
+  const dir = path.join(__dirname, 'android', 'app', 'build', 'outputs', 'apk', 'release');
+  for (const abi of ['arm64-v8a', 'armeabi-v7a']) {
+    const out = path.join(ROOT, 'dist', `MrTerm-${version}-${abi}.apk`);
+    copy(path.join(dir, `app-${abi}-release.apk`), out);
+    console.log(`APK: ${out}`);
+  }
+}
+
+(async () => {
+  const args = process.argv.slice(2);
+  if (args.includes('--setup')) await setup();
+  else {
+    buildWeb();
+    if (args.includes('--apk')) buildApk();
+  }
+})().catch((e) => { console.error(e.message || e); process.exit(1); });

mobile/capacitor.config.json

@@ -0,0 +1,9 @@
+{
+  "appId": "de.mrterm.app",
+  "appName": "MrTerm",
+  "webDir": "www",
+  "android": { "backgroundColor": "#14161d" },
+  "plugins": {
+    "CapacitorNodeJS": { "nodeDir": "nodejs", "startMode": "manual" }
+  }
+}

mobile/dev/electron-dev.js

@@ -0,0 +1,63 @@
+// Entwicklung ohne Handy: startet die gebaute Oberfläche (www/) in einem Fenster in Handygröße
+// und das Node-Backend im Electron-Hauptprozess, verbunden über eine nachgebaute Capacitor-Bridge.
+//   cd mobile && node build.js && ../node_modules/.bin/electron dev/electron-dev.js [--user-data-dir=…]
+const { app, BrowserWindow, ipcMain, clipboard } = require('electron');
+const path = require('path');
+const Module = require('module');
+const EventEmitter = require('events');
+const crypto = require('crypto');
+
+const WWW = path.join(__dirname, '..', 'www');
+const toWeb = new EventEmitter();
+const fromWeb = new EventEmitter();
+let win;
+
+// require('bridge') im Backend auf diese Nachbildung umleiten
+const bridge = {
+  channel: { send: (name, ...args) => toWeb.emit('msg', name, args), addListener: (name, fn) => fromWeb.on(name, fn) },
+  getDataPath: () => path.join(app.getPath('userData'), 'mobile-data'),
+};
+const resolve = Module._resolveFilename;
+Module._resolveFilename = function (req, ...rest) { return req === 'bridge' ? 'bridge' : resolve.call(this, req, ...rest); };
+require.cache.bridge = { id: 'bridge', filename: 'bridge', loaded: true, exports: bridge };
+
+toWeb.on('msg', (name, args) => { if (win && !win.isDestroyed()) win.webContents.send('dev:node', name, args); });
+ipcMain.on('dev:send', (_e, name, args) => fromWeb.emit(name, ...args));
+ipcMain.handle('dev:start', (_e, env) => {
+  Object.assign(process.env, env, { DATADIR: bridge.getDataPath() });
+  require('fs').mkdirSync(process.env.DATADIR, { recursive: true });
+  setTimeout(() => { started = true; require(path.join(WWW, 'nodejs', 'index.js')); }, 500);
+});
+let started;
+ipcMain.handle('dev:ready', async () => { while (!started) await new Promise((r) => setTimeout(r, 100)); });
+ipcMain.handle('dev:native', (_e, method, arg) => {
+  if (method === 'vaultKey') return { key: crypto.createHash('sha256').update(app.getPath('userData')).digest('base64') };
+  if (method === 'info') return { device: 'Dev Phone', locale: process.env.MRTERM_DEV_LOCALE || 'en-US', version: require('../../package.json').version };
+  if (method === 'bioAvailable') return { available: true, enrolled: false };
+  if (method === 'bioEnroll' || method === 'bioUnlock') return { secret: Buffer.alloc(32, 1).toString('base64') };
+  if (method === 'copy') return clipboard.writeText(arg.text);
+  if (method === 'paste') return { text: clipboard.readText() };
+  return {};
+});
+
+app.whenReady().then(() => {
+  win = new BrowserWindow({
+    width: 412, height: 870, backgroundColor: '#14161d',
+    webPreferences: { preload: path.join(__dirname, 'preload.js'), contextIsolation: true },
+  });
+  win.loadFile(path.join(WWW, 'index.html'));
+  if (process.env.MRTERM_SHOT) {
+    const steps = JSON.parse(require('fs').readFileSync(process.env.MRTERM_SHOT, 'utf8'));
+    win.webContents.on('console-message', (e) => console.log('[r]', e.message));
+    win.webContents.once('did-finish-load', async () => {
+      await new Promise((r) => setTimeout(r, 2500));
+      for (const s of steps) {
+        if (s.js) await win.webContents.executeJavaScript(`(async()=>{${s.js}})();0`).catch((e) => console.log('js', e.message));
+        await new Promise((r) => setTimeout(r, s.wait || 900));
+        if (s.shot) require('fs').writeFileSync(path.join(process.env.MRTERM_SHOT_OUT, s.shot), (await win.webContents.capturePage()).toPNG());
+      }
+      app.exit(0);
+    });
+  }
+});
+app.on('window-all-closed', () => app.exit(0));

mobile/dev/preload.js

@@ -0,0 +1,16 @@
+const { contextBridge, ipcRenderer } = require('electron');
+
+const listeners = new Map();
+ipcRenderer.on('dev:node', (_e, name, args) => listeners.get(name)?.forEach((fn) => fn({ args })));
+const native = (m) => (arg) => ipcRenderer.invoke('dev:native', m, arg);
+
+contextBridge.exposeInMainWorld('DevBridge', {
+  NodeJS: {
+    // Wie auf Android: start() kehrt erst zurück, wenn Node beendet wird
+    start: (o) => { ipcRenderer.invoke('dev:start', o.env); return new Promise(() => {}); },
+    whenReady: () => ipcRenderer.invoke('dev:ready'),
+    send: ({ eventName, args }) => ipcRenderer.send('dev:send', eventName, args),
+    addListener: (name, fn) => { if (!listeners.has(name)) listeners.set(name, new Set()); listeners.get(name).add(fn); return { remove: () => listeners.get(name).delete(fn) }; },
+  },
+  Native: Object.fromEntries(['vaultKey', 'info', 'bioAvailable', 'bioEnroll', 'bioUnlock', 'bioDisable', 'multicast', 'copy', 'paste', 'background', 'bars'].map((m) => [m, native(m)])),
+});

mobile/nodejs/electron-shim.js

@@ -0,0 +1,30 @@
+// Ersatz für die von store.js genutzten Electron-APIs unter Android.
+// safeStorage verschlüsselt mit einem 256-Bit-Schlüssel, den die App im Android Keystore verpackt aufbewahrt
+// und beim Start als MRTERM_VAULT_KEY (base64) an den Node-Prozess übergibt.
+const crypto = require('crypto');
+
+const dataDir = () => process.env.DATADIR || require('bridge').getDataPath();
+const key = () => {
+  const k = Buffer.from(process.env.MRTERM_VAULT_KEY || '', 'base64');
+  return k.length === 32 ? k : null;
+};
+
+const safeStorage = {
+  isEncryptionAvailable: () => !!key(),
+  encryptString(plain) {
+    const iv = crypto.randomBytes(12);
+    const c = crypto.createCipheriv('aes-256-gcm', key(), iv);
+    const ct = Buffer.concat([c.update(String(plain), 'utf8'), c.final()]);
+    return Buffer.concat([iv, c.getAuthTag(), ct]);
+  },
+  decryptString(buf) {
+    const d = crypto.createDecipheriv('aes-256-gcm', key(), buf.subarray(0, 12));
+    d.setAuthTag(buf.subarray(12, 28));
+    return Buffer.concat([d.update(buf.subarray(28)), d.final()]).toString('utf8');
+  },
+};
+
+module.exports = {
+  app: { getPath: () => dataDir(), getVersion: () => process.env.MRTERM_VERSION || '0.0.0', getLocale: () => process.env.MRTERM_LOCALE || 'en' },
+  safeStorage,
+};

mobile/nodejs/server.js

@@ -0,0 +1,48 @@
+// Node-Backend der Android-App. Die Kanäle kommen aus src/core/backend.js (gemeinsam mit der Web-Version);
+// hier nur, was Android betrifft: Bridge-Anbindung, Entsperren per Fingerabdruck, Pause/Fortsetzen.
+// Protokoll: Oberfläche → 'call' [reqId, Kanal, Argumente] bzw. 'send' [Kanal, Argumente];
+//            Backend  → 'reply' [reqId, ok, Wert|Fehler] und 'evt' [Kanal, Argumente].
+const { channel } = require('bridge');
+const crypto = require('crypto');
+const { Store } = require('../../src/main/store');
+const { createBackend } = require('../../src/core/backend');
+const i18n = require('../../src/i18n');
+
+const send = (ch, ...args) => channel.send('evt', ch, args);
+process.on('uncaughtException', (e) => { console.error(e); send('toast', e?.message || String(e), 'error'); });
+process.on('unhandledRejection', (e) => console.error('Unhandled rejection:', e));
+
+const store = new Store();
+const applyLanguage = (lang = store.get().settings.language) => i18n.setLanguage(lang, process.env.MRTERM_LOCALE || 'en');
+const be = createBackend({ store, send, platform: 'android', version: process.env.MRTERM_VERSION || '0.0.0', withSync: true, onLanguage: applyLanguage });
+
+channel.addListener('call', async (reqId, ch, args = []) => {
+  try { channel.send('reply', reqId, true, await be.call(ch, args)); } catch (e) { channel.send('reply', reqId, false, e?.message || String(e)); }
+});
+channel.addListener('send', (ch, args = []) => be.notify(ch, args));
+
+// ---------- Fingerabdruck (Geheimnis aus dem Android Keystore, nur zusätzlich zum Passwort) ----------
+const bioKek = (b64) => Buffer.from(crypto.hkdfSync('sha256', Buffer.from(b64, 'base64'), Buffer.alloc(0), 'mrterm-bio-kek', 32));
+be.handle('lock:unlockBio', (secret) => {
+  if (!store.lock?.bio) throw new Error(i18n.t('Fingerprint unlock is not set up.'));
+  try { store.unlockWith(bioKek(secret), store.lock.bio.wrap); } catch { throw new Error(i18n.t('Fingerprint unlock failed. Use your password.')); }
+  applyLanguage();
+  be.sync.start().catch(() => {});
+  return true;
+});
+be.handle('lock:setBio', (secret) => {
+  be.requireUnlocked();
+  if (!store.lock?.password) throw new Error(i18n.t('Set a password first.'));
+  store.lock.bio = secret ? { wrap: store.wrapDek(bioKek(secret)) } : null;
+  store.save();
+  return be.lockStatus();
+});
+
+// App im Hintergrund: Sync-Sockets schließen, im Vordergrund wieder öffnen
+be.handle('app:pause', () => be.sync.stop());
+be.handle('app:resume', () => be.sync.start().catch(() => {}));
+
+store.load();
+applyLanguage();
+be.sync.start().catch(() => {});
+channel.send('ready');

mobile/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "mrterm-mobile",
+  "private": true,
+  "version": "0.0.0",
+  "description": "MrTerm for Android",
+  "scripts": {
+    "build": "node build.js",
+    "apk": "node build.js --apk"
+  },
+  "devDependencies": {
+    "@capacitor/cli": "^8.5.2",
+    "esbuild": "^0.28.2"
+  },
+  "allowScripts": {
+    "esbuild@0.28.2": true
+  },
+  "dependencies": {
+    "@capacitor/android": "^8.5.2",
+    "@capacitor/core": "^8.5.2",
+    "capacitor-nodejs": "file:vendor/capacitor-nodejs-1.0.0-beta.10.tgz"
+  }
+}

mobile/web/index.html

@@ -0,0 +1,56 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover" />
+  <meta name="color-scheme" content="dark" />
+  <title>MrTerm</title>
+  <link rel="stylesheet" href="lib/xterm.css" />
+  <link rel="stylesheet" href="lib/app-themes.css" />
+  <link rel="stylesheet" href="styles.css" />
+</head>
+<body>
+  <div id="boot"><img src="logo.png" alt="" /><div class="spinner"></div></div>
+
+  <!-- Hauptansicht: Inhalt + untere Navigation -->
+  <div id="main" hidden>
+    <main id="view"></main>
+    <nav id="tabs">
+      <button data-view="hosts"><svg viewBox="0 0 24 24"><rect x="3" y="4" width="18" height="7" rx="2"/><rect x="3" y="13" width="18" height="7" rx="2"/><path d="M7 7.5h.01M7 16.5h.01"/></svg><span data-t>Hosts</span></button>
+      <button data-view="keys"><svg viewBox="0 0 24 24"><circle cx="8" cy="15" r="4"/><path d="M11 12l9-9M16 7l3 3M14 9l2 2"/></svg><span data-t>Keys</span></button>
+      <button data-view="snippets"><svg viewBox="0 0 24 24"><path d="M8 7l-5 5 5 5M16 7l5 5-5 5"/></svg><span data-t>Snippets</span></button>
+      <button data-view="settings"><svg viewBox="0 0 24 24"><circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.7 1.7 0 00.3 1.8l.1.1a2 2 0 11-2.8 2.8l-.1-.1a1.7 1.7 0 00-1.8-.3 1.7 1.7 0 00-1 1.5V21a2 2 0 11-4 0v-.1a1.7 1.7 0 00-1.1-1.5 1.7 1.7 0 00-1.8.3l-.1.1a2 2 0 11-2.8-2.8l.1-.1a1.7 1.7 0 00.3-1.8 1.7 1.7 0 00-1.5-1H3a2 2 0 110-4h.1a1.7 1.7 0 001.5-1.1 1.7 1.7 0 00-.3-1.8l-.1-.1a2 2 0 112.8-2.8l.1.1a1.7 1.7 0 001.8.3H9a1.7 1.7 0 001-1.5V3a2 2 0 114 0v.1a1.7 1.7 0 001 1.5 1.7 1.7 0 001.8-.3l.1-.1a2 2 0 112.8 2.8l-.1.1a1.7 1.7 0 00-.3 1.8V9a1.7 1.7 0 001.5 1H21a2 2 0 110 4h-.1a1.7 1.7 0 00-1.5 1z"/></svg><span data-t>Settings</span></button>
+    </nav>
+  </div>
+
+  <!-- Terminal im Vollbild -->
+  <div id="termScreen" hidden>
+    <header class="term-head">
+      <button class="icon" id="termBack" aria-label="Back"><svg viewBox="0 0 24 24"><path d="M15 18l-6-6 6-6"/></svg></button>
+      <button class="term-title" id="termTitle"><span class="dot"></span><span class="name"></span><svg viewBox="0 0 24 24"><path d="M6 9l6 6 6-6"/></svg></button>
+      <button class="icon" id="termKbd" aria-label="Keyboard"><svg viewBox="0 0 24 24"><rect x="2" y="6" width="20" height="12" rx="2"/><path d="M6 10h.01M10 10h.01M14 10h.01M18 10h.01M7 14h10"/></svg></button>
+      <button class="icon" id="termMenu" aria-label="Menu"><svg viewBox="0 0 24 24"><circle cx="12" cy="5" r="1.5"/><circle cx="12" cy="12" r="1.5"/><circle cx="12" cy="19" r="1.5"/></svg></button>
+    </header>
+    <div id="terms"></div>
+    <div id="keybar"></div>
+  </div>
+
+  <div id="lockScreen" hidden></div>
+  <div id="layer"></div>
+  <div id="toasts"></div>
+
+  <script>
+    // Fehler beim Laden sichtbar machen statt endlos den Ladekreis zu zeigen
+    window.addEventListener('error', (e) => {
+      const b = document.getElementById('boot');
+      if (b && !b.hidden) b.innerHTML = '<div style="color:#ff5f6d;padding:24px;text-align:center;font:14px system-ui">' + String(e.message || e.error).replace(/</g, '&lt;') + '</div>';
+    });
+  </script>
+  <script src="lib/capacitor.js"></script>
+  <script src="lib/i18n.js"></script>
+  <script src="lib/themes.js"></script>
+  <script src="lib/xterm.js"></script>
+  <script src="lib/addon-fit.js"></script>
+  <script src="app.js"></script>
+</body>
+</html>

mobile/web/styles.css

@@ -0,0 +1,223 @@
+:root {
+  /* Farben kommen aus lib/app-themes.css (gemeinsam mit dem Desktop, Auswahl über data-theme) */
+  --surface: var(--card);
+  --surface2: var(--card-hover);
+  --line: var(--border);
+  --accent-soft: color-mix(in srgb, var(--accent) 16%, transparent);
+  --r: calc(var(--r) + 4px);
+  /* Status-/Navigationsleiste rechnet MainActivity als Rand um den WebView heraus */
+  --top: 0px;
+  --bottom: 0px;
+  color-scheme: dark;
+}
+:root.light { color-scheme: light; }
+* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
+html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); overflow: hidden; }
+body { font: 15px/1.4 var(--font); font-family: var(--font), system-ui, Roboto, sans-serif; -webkit-user-select: none; user-select: none; overscroll-behavior: none; }
+[hidden] { display: none !important; }
+button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
+input, select, textarea { font: inherit; color: var(--text); -webkit-user-select: text; user-select: text; }
+svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
+.mono { font-family: ui-monospace, 'JetBrains Mono', 'DejaVu Sans Mono', monospace; }
+
+/* ---------- Start ---------- */
+#boot { position: fixed; inset: 0; display: grid; place-content: center; justify-items: center; gap: 28px; }
+#boot img { width: 84px; height: 84px; }
+.spinner { width: 26px; height: 26px; border-radius: 50%; border: 3px solid var(--surface2); border-top-color: var(--accent); animation: spin .8s linear infinite; }
+.spinner.sm { width: 16px; height: 16px; border-width: 2px; }
+@keyframes spin { to { transform: rotate(360deg); } }
+
+/* ---------- Grundlayout ---------- */
+#main { position: fixed; inset: 0; display: flex; flex-direction: column; }
+#view { flex: 1; overflow-y: auto; padding: calc(var(--top) + 8px) 16px 96px; -webkit-overflow-scrolling: touch; }
+#tabs { display: flex; background: var(--surface); border-top: 1px solid var(--line); padding-bottom: var(--bottom); }
+#tabs button { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 9px 0 8px; color: var(--faint); font-size: 11.5px; font-weight: 600; }
+#tabs button.active { color: var(--accent); }
+
+.top { display: flex; align-items: center; gap: 10px; min-height: 52px; }
+.top h1 { font-size: 26px; margin: 0; flex: 1; letter-spacing: -.3px; }
+.top h1 .brand { color: var(--green); }
+.icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; color: var(--muted); }
+.icon:active { background: var(--surface2); }
+
+.search { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0 12px; margin: 6px 0 14px; }
+.search svg { color: var(--faint); width: 18px; height: 18px; }
+.search input { flex: 1; background: none; border: 0; outline: 0; padding: 12px 0; }
+
+.section { margin: 18px 4px 8px; font-size: 12px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: 8px; }
+.section .count { background: var(--surface2); border-radius: 8px; padding: 1px 7px; font-size: 11px; color: var(--faint); }
+.section svg { width: 16px; height: 16px; }
+
+.list { background: var(--surface); border-radius: var(--r); overflow: hidden; }
+.item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; min-height: 62px; position: relative; }
+.item + .item::before { content: ''; position: absolute; top: 0; left: 64px; right: 0; border-top: 1px solid var(--line); }
+.item:active { background: var(--surface2); }
+.item .meta { flex: 1; min-width: 0; }
+.item .title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.item .sub { color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.item .more { color: var(--faint); width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; margin-right: -6px; }
+.item.disabled { opacity: .55; }
+.avatar { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; font-weight: 800; color: #fff; flex: none; font-size: 16px; }
+.avatar svg { width: 20px; height: 20px; }
+.avatar.soft { background: var(--accent-soft); color: var(--accent); }
+.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); flex: none; }
+.dot.on { background: var(--green); }
+.dot.err { background: var(--red); }
+
+.sessions { display: flex; gap: 8px; overflow-x: auto; margin: 0 -16px 4px; padding: 2px 16px 8px; scrollbar-width: none; }
+.sessions::-webkit-scrollbar { display: none; }
+.chip { display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 8px 14px; white-space: nowrap; font-weight: 600; font-size: 14px; }
+
+.empty { text-align: center; padding: 60px 24px; color: var(--muted); }
+.empty .avatar { margin: 0 auto 16px; width: 60px; height: 60px; border-radius: 18px; }
+.empty .avatar svg { width: 28px; height: 28px; }
+.empty h3 { color: var(--text); margin: 0 0 6px; }
+
+.fab { position: fixed; right: 18px; bottom: calc(76px + var(--bottom)); width: 58px; height: 58px; border-radius: calc(var(--radius) + 8px); background: var(--accent); color: var(--on-accent); display: grid; place-items: center; box-shadow: 0 8px 24px #0008; }
+.fab svg { width: 26px; height: 26px; }
+
+/* ---------- Karten / Einstellungen ---------- */
+.card { background: var(--surface); border-radius: var(--r); padding: 14px 16px; margin-bottom: 14px; }
+.card h3 { margin: 0 0 4px; font-size: 16px; }
+.card p, .hint { color: var(--muted); font-size: 13.5px; margin: 4px 0 10px; }
+.row { display: flex; align-items: center; gap: 12px; padding: 10px 0; }
+.row + .row { border-top: 1px solid var(--line); }
+.row .grow { flex: 1; min-width: 0; }
+.row .sub { color: var(--muted); font-size: 13px; }
+.btns { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
+
+.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 12px; background: var(--surface2); border: 1px solid var(--line); font-weight: 600; }
+.btn svg { width: 18px; height: 18px; }
+.btn.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
+.btn.danger { color: var(--red); }
+.btn.block { width: 100%; }
+.btn:disabled { opacity: .5; }
+.btn:active { filter: brightness(1.15); }
+
+.field { margin-bottom: 14px; }
+.field label { display: block; font-size: 12px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: var(--muted); margin: 0 2px 6px; }
+.field input, .field select, .field textarea { width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px 13px; outline: 0; min-height: 48px; }
+.field textarea { min-height: 110px; resize: vertical; font-family: ui-monospace, monospace; font-size: 13px; }
+.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
+.field .hint { margin: 6px 2px 0; font-size: 12.5px; }
+.pw { position: relative; }
+.pw input { padding-right: 48px; }
+.pw button { position: absolute; right: 4px; top: 4px; width: 40px; height: 40px; display: grid; place-items: center; color: var(--faint); }
+.two { display: grid; grid-template-columns: 1fr 96px; gap: 10px; }
+
+.switch { position: relative; width: 50px; height: 30px; flex: none; }
+.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
+.switch span { position: absolute; inset: 0; background: var(--surface2); border-radius: 20px; transition: .2s; }
+.switch span::after { content: ''; position: absolute; left: 3px; top: 3px; width: 24px; height: 24px; border-radius: 50%; background: var(--muted); transition: .2s; }
+.switch input:checked + span { background: var(--accent); }
+.switch input:checked + span::after { transform: translateX(20px); background: var(--on-accent); }
+
+.warn-box { border: 1px solid #ffb34755; background: #ffb34712; border-radius: 12px; padding: 10px 12px; color: var(--orange); font-size: 13px; margin: 8px 0; }
+
+/* ---------- Ebenen: Seiten, Sheets, Dialoge ---------- */
+#layer > * { position: fixed; inset: 0; z-index: 20; }
+.page { background: var(--bg); display: flex; flex-direction: column; animation: slidein .18s ease-out; }
+@keyframes slidein { from { transform: translateX(30px); opacity: 0; } }
+.page-head { display: flex; align-items: center; gap: 6px; padding: calc(var(--top) + 6px) 8px 6px; border-bottom: 1px solid var(--line); background: var(--surface); }
+.page-head h2 { flex: 1; font-size: 18px; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.page-head .btn { min-height: 38px; padding: 0 14px; }
+.page-body { flex: 1; overflow-y: auto; padding: 16px 16px calc(24px + var(--bottom)); }
+
+.scrim { background: #0009; display: flex; align-items: flex-end; animation: fade .15s; }
+.scrim.center { align-items: center; justify-content: center; padding: 20px; }
+@keyframes fade { from { opacity: 0; } }
+.sheet { width: 100%; background: var(--surface); border-radius: 20px 20px 0 0; padding: 8px 8px calc(10px + var(--bottom)); max-height: 85vh; overflow-y: auto; animation: up .18s ease-out; }
+@keyframes up { from { transform: translateY(40px); } }
+.sheet .grab { width: 38px; height: 4px; background: var(--line); border-radius: 4px; margin: 4px auto 8px; }
+.sheet .sheet-title { padding: 6px 12px 10px; color: var(--muted); font-size: 13px; font-weight: 600; }
+.sheet button.opt { display: flex; align-items: center; gap: 14px; width: 100%; padding: 14px 14px; border-radius: 12px; text-align: left; font-weight: 500; }
+.sheet button.opt:active { background: var(--surface2); }
+.sheet button.opt.danger { color: var(--red); }
+.sheet button.opt svg { color: var(--muted); }
+.sheet button.opt.danger svg { color: var(--red); }
+
+.dialog { width: 100%; max-width: 420px; background: var(--surface); border-radius: 20px; padding: 20px; max-height: 88vh; overflow-y: auto; animation: pop .15s ease-out; }
+@keyframes pop { from { transform: scale(.96); opacity: 0; } }
+.dialog h3 { margin: 0 0 8px; font-size: 18px; }
+.dialog p { color: var(--muted); margin: 0 0 14px; }
+.dialog .btns { justify-content: flex-end; margin-top: 16px; }
+.fp { font-size: 12.5px; background: var(--bg); border-radius: 10px; padding: 10px; word-break: break-all; color: var(--text); -webkit-user-select: text; user-select: text; }
+.pair-code { font: 700 38px ui-monospace, monospace; letter-spacing: 6px; text-align: center; padding: 16px; background: var(--bg); border-radius: 14px; color: var(--accent); }
+.checks label { display: flex; align-items: center; gap: 12px; padding: 10px 2px; }
+.checks input { width: 20px; height: 20px; accent-color: var(--accent); }
+.checks h4 { margin: 12px 0 2px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
+
+#toasts { position: fixed; left: 16px; right: 16px; bottom: calc(84px + var(--bottom)); z-index: 50; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
+.toast { background: var(--surface2); border-left: 3px solid var(--accent); border-radius: 12px; padding: 12px 14px; box-shadow: 0 8px 24px #0008; animation: up .2s; font-size: 14px; }
+.toast.ok { border-color: var(--green); }
+.toast.error { border-color: var(--red); }
+
+/* ---------- Sperrbildschirm ---------- */
+#lockScreen { position: fixed; inset: 0; z-index: 40; background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px; gap: 14px; }
+#lockScreen img { width: 72px; height: 72px; margin-bottom: 6px; }
+#lockScreen h2 { margin: 0; }
+#lockScreen p { margin: 0 0 10px; color: var(--muted); text-align: center; }
+#lockScreen form { width: 100%; max-width: 340px; display: flex; flex-direction: column; gap: 10px; }
+#lockScreen .field { margin: 0; }
+.bio-btn { width: 64px; height: 64px; border-radius: 20px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-top: 10px; }
+.bio-btn svg { width: 32px; height: 32px; }
+
+/* ---------- Terminal ---------- */
+#termScreen { position: fixed; left: 0; right: 0; top: 0; height: 100%; display: flex; flex-direction: column; background: var(--term-bg, #13151c); z-index: 10; }
+.term-head { display: flex; align-items: center; gap: 2px; padding: calc(var(--top) + 2px) 4px 2px; background: var(--surface); border-bottom: 1px solid var(--line); }
+.term-title { flex: 1; min-width: 0; display: flex; align-items: center; gap: 8px; padding: 8px; font-weight: 700; }
+.term-title .name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.term-title svg { width: 16px; height: 16px; color: var(--faint); }
+.term-title .count { background: var(--surface2); color: var(--muted); border-radius: 8px; padding: 0 7px; font-size: 12px; }
+#terms { flex: 1; position: relative; overflow: hidden; }
+.term-wrap { position: absolute; inset: 0; padding: 4px 2px 0 6px; }
+.term-wrap .xterm { height: 100%; }
+.term-wrap .xterm-viewport { background-color: transparent !important; }
+.term-overlay { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; background: var(--term-bg, #13151c); color: var(--muted); padding: 24px; text-align: center; z-index: 5; }
+#keybar { display: flex; gap: 6px; overflow-x: auto; padding: 6px 6px calc(6px + var(--bottom)); background: var(--surface); border-top: 1px solid var(--line); scrollbar-width: none; }
+#keybar::-webkit-scrollbar { display: none; }
+#keybar button { flex: none; min-width: 44px; height: 40px; padding: 0 10px; border-radius: 10px; background: var(--surface2); font: 600 14px ui-monospace, monospace; color: var(--text); display: grid; place-items: center; }
+#keybar button svg { width: 18px; height: 18px; }
+#keybar button.on { background: var(--accent); color: var(--on-accent); }
+#keybar button.lock { box-shadow: inset 0 0 0 2px var(--on-accent); }
+body.kbd-open #keybar { padding-bottom: 6px; }
+body.kbd-open #tabs, body.kbd-open .fab { display: none; }
+
+/* Design-Extras */
+[data-theme='xp'] .page-head, [data-theme='xp'] .term-head { background: linear-gradient(#0a5fdc, #0846b8 55%, #0a3f9f); color: #fff; border-color: #0a3f9f; }
+[data-theme='xp'] .page-head .icon, [data-theme='xp'] .term-head .icon, [data-theme='xp'] .term-title svg { color: #fff; }
+[data-theme='xp'] #tabs { background: linear-gradient(#3168d5, #1d4fbf); border-color: #0a3f9f; }
+[data-theme='xp'] #tabs button { color: #c7d8ff; }
+[data-theme='xp'] #tabs button.active { color: #fff; }
+[data-theme='xp'] .btn.primary, [data-theme='xp'] .fab { background: linear-gradient(#3d86e8, #2159b8); }
+[data-theme='cyberpunk'] .btn.primary, [data-theme='cyberpunk'] .fab { clip-path: polygon(0 0, 100% 0, 100% 70%, calc(100% - 12px) 100%, 0 100%); }
+[data-theme='cyberpunk'] .btn.primary { text-transform: uppercase; letter-spacing: .6px; }
+[data-theme='cyberpunk'] .top h1 { text-transform: uppercase; letter-spacing: 1px; text-shadow: 2px 0 #ff003c88, -2px 0 #00f0ff88; }
+[data-theme='cyberpunk'] .list, [data-theme='cyberpunk'] .card { border-left: 2px solid var(--accent); }
+[data-theme='cyberpunk'] #tabs button.active { color: var(--accent); text-shadow: 0 0 8px #fcee0a88; }
+.theme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 6px 0 14px; }
+.theme-prev { border-radius: 12px; padding: 8px; border: 2px solid var(--line); font-size: 12px; font-weight: 600; text-align: left; }
+.theme-prev.active { border-color: var(--accent); }
+.theme-prev .dp { display: flex; gap: 4px; height: 40px; margin-bottom: 6px; }
+.theme-prev .dp i { width: 12px; border-radius: 3px; }
+.theme-prev .dp div { flex: 1; display: flex; flex-direction: column; gap: 4px; }
+.theme-prev .dp b { flex: 1; border-radius: 3px; position: relative; }
+.theme-prev .dp s { position: absolute; left: 4px; top: 4px; width: 14px; height: 6px; border-radius: 2px; }
+.colors { display: flex; flex-wrap: wrap; gap: 10px; }
+.colors button { width: 34px; height: 34px; border-radius: 50%; border: 3px solid transparent; }
+.colors button.active { border-color: var(--text); }
+
+/* macOS Liquid Glass */
+[data-theme='macos'] #main, [data-theme='macos'] #view { background: transparent; }
+[data-theme='macos'] :is(.list, .card, .search, #tabs, .page-head, .term-head, .sheet, .dialog, .toast, .chip, .btn, .fab, .field input, .field select, .field textarea, #keybar) {
+  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
+}
+[data-theme='macos'] :is(.list, .card, .search, .sheet, .dialog, .toast, .chip) { border: 1px solid var(--border); box-shadow: var(--glass-edge); }
+[data-theme='macos'] .page, [data-theme='macos'] #lockScreen { background: var(--wallpaper); }
+[data-theme='macos'] .page-body { background: transparent; }
+[data-theme='macos'] #tabs, [data-theme='macos'] .page-head { background: rgba(255, 255, 255, .42); border-color: rgba(255, 255, 255, .7); }
+[data-theme='macos'] .btn { border-radius: 999px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9); }
+[data-theme='macos'] .btn.primary, [data-theme='macos'] .fab { background: linear-gradient(rgba(40, 145, 255, .92), rgba(0, 110, 240, .92)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 6px 18px rgba(0, 122, 255, .3); }
+[data-theme='macos'] .fab { border-radius: 50%; }
+[data-theme='macos'] .scrim { background: rgba(30, 40, 70, .18); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
+[data-theme='macos'] .sheet, [data-theme='macos'] .dialog { background: rgba(255, 255, 255, .62); }

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mrterm",
-  "version": "0.10.3",
+  "version": "0.13.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mrterm",
-      "version": "0.10.3",
+      "version": "0.13.1",
       "license": "MIT",
       "dependencies": {
         "@xterm/addon-fit": "^0.11.0",
@@ -18,7 +18,9 @@
       },
       "devDependencies": {
         "electron": "^44.4.5",
-        "electron-builder": "^26.15.3"
+        "electron-builder": "^26.15.3",
+        "esbuild": "^0.28.2",
+        "ws": "^8.21.3"
       }
     },
     "node_modules/@electron-internal/extract-zip": {
@@ -325,6 +327,448 @@
         "node": ">=14.14"
       }
     },
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+        "ppc64"
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+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/win32-ia32": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.28.2.tgz",
+      "integrity": "sha512-YmJbfTlvU7Sdn9BB+4PRES4oB6pxgS37MAONj+hBr/cpXS1aBPKXxNnDbu+QCWPj0o9dgyxeq79g6c5P8KeuYA==",
+      "cpu": [
+        "ia32"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/win32-x64": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.2.tgz",
+      "integrity": "sha512-5ebpxr3nWMzrL/rnUI755Jkuee0bHL/Gq0WTF9lvcpv73wAp5eu8MfBUgWK9bhWvZjj7yX8etf/8tI8Ney695g==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@isaacs/fs-minipass": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/@isaacs/fs-minipass/-/fs-minipass-4.0.1.tgz",
@@ -2071,6 +2515,48 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/esbuild": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.2.tgz",
+      "integrity": "sha512-HKVLS8dvII+xoKW9kmqxbRKrnWEXfJJr/FZhhJmiqIB0e053QNYFqOBouTMO/k5sID4MvCiUCvv8b9M4h32wIA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "bin": {
+        "esbuild": "bin/esbuild"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "@esbuild/aix-ppc64": "0.28.2",
+        "@esbuild/android-arm": "0.28.2",
+        "@esbuild/android-arm64": "0.28.2",
+        "@esbuild/android-x64": "0.28.2",
+        "@esbuild/darwin-arm64": "0.28.2",
+        "@esbuild/darwin-x64": "0.28.2",
+        "@esbuild/freebsd-arm64": "0.28.2",
+        "@esbuild/freebsd-x64": "0.28.2",
+        "@esbuild/linux-arm": "0.28.2",
+        "@esbuild/linux-arm64": "0.28.2",
+        "@esbuild/linux-ia32": "0.28.2",
+        "@esbuild/linux-loong64": "0.28.2",
+        "@esbuild/linux-mips64el": "0.28.2",
+        "@esbuild/linux-ppc64": "0.28.2",
+        "@esbuild/linux-riscv64": "0.28.2",
+        "@esbuild/linux-s390x": "0.28.2",
+        "@esbuild/linux-x64": "0.28.2",
+        "@esbuild/netbsd-arm64": "0.28.2",
+        "@esbuild/netbsd-x64": "0.28.2",
+        "@esbuild/openbsd-arm64": "0.28.2",
+        "@esbuild/openbsd-x64": "0.28.2",
+        "@esbuild/openharmony-arm64": "0.28.2",
+        "@esbuild/sunos-x64": "0.28.2",
+        "@esbuild/win32-arm64": "0.28.2",
+        "@esbuild/win32-ia32": "0.28.2",
+        "@esbuild/win32-x64": "0.28.2"
+      }
+    },
     "node_modules/escalade": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
@@ -3992,6 +4478,28 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/ws": {
+      "version": "8.21.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.3.tgz",
+      "integrity": "sha512-201TZ/kPWxoPr/OKWjquZR1SWKXcvxdH+e1xrx89b3YbmzLMFCLfnaG1HFIgWzJOEWZ7MvpK++odZufgYR50Rw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/xmlbuilder": {
       "version": "15.1.1",
       "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-15.1.1.tgz",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mrterm",
   "productName": "MrTerm",
-  "version": "0.10.3",
+  "version": "0.13.1",
   "description": "Moderner SSH-, SFTP- und RDP-Client",
   "main": "src/main/main.js",
   "author": "MrBlake",
@@ -68,12 +68,15 @@
   },
   "devDependencies": {
     "electron": "^44.4.5",
-    "electron-builder": "^26.15.3"
+    "electron-builder": "^26.15.3",
+    "esbuild": "^0.28.2",
+    "ws": "^8.21.3"
   },
   "allowScripts": {
     "electron@44.4.5": true,
     "electron-winstaller@5.4.0": true,
     "ssh2@1.17.0": true,
-    "koffi@3.3.1": true
+    "koffi@3.3.1": true,
+    "esbuild@0.28.2": true
   }
 }

scripts/release-all.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-# Fragt nach der Version, baut Windows (Setup + Portable, per wine) und Arch/CachyOS (pacman + AppImage)
+# Fragt nach der Version, baut Windows (Setup + Portable, per wine), Arch/CachyOS (pacman + AppImage)
-# und lädt alles als Release v<version> nach Gitea hoch.
+# und Android (APK, signiert mit mobile/android/keystore.properties) und lädt alles als Release v<version> nach Gitea hoch.
 # Token: Umgebungsvariable GITEA_TOKEN oder Datei .gitea-token im Projektordner (nicht eingecheckt).
 set -euo pipefail
 cd "$(dirname "$0")/.."
@@ -31,5 +31,11 @@ git -c http.extraHeader="Authorization: Basic ${auth}" push origin HEAD
 rm -rf dist
 npm run dist:linux
 npm run dist:win
+if [[ -f mobile/android/keystore.properties ]]; then
+  [[ -d mobile/node_modules/capacitor-nodejs ]] || (cd mobile && node build.js --setup)
+  (cd mobile && node build.js --apk)
+else
+  echo "mobile/android/keystore.properties fehlt – Android-APK wird übersprungen"
+fi
 
 npm run release -- --notes "$notes" "${prerelease[@]}"

scripts/release.js

@@ -28,7 +28,7 @@ const arg = (n) => { const i = process.argv.indexOf(n); return i > 0 ? process.a
     rel = await res.json();
     console.log('Release angelegt:', rel.html_url);
   }
-  const files = fs.readdirSync('dist').filter((f) => f.includes(version) && /\.(exe|AppImage|pacman)$/.test(f));
+  const files = fs.readdirSync('dist').filter((f) => f.includes(version) && /\.(exe|AppImage|pacman|apk)$/.test(f));
   if (!files.length) throw new Error('Keine Pakete für ' + version + ' in dist/ gefunden.');
   for (const f of files) {
     const old = (rel.assets || []).find((a) => a.name === f);

src/core/backend.js

@@ -0,0 +1,223 @@
+// Gemeinsame Backend-Kanäle für die Android-App und die Web-Version (Docker).
+// Der Electron-Hauptprozess (src/main/main.js) registriert seine Kanäle selbst, nutzt aber dieselben Module.
+//
+// createBackend({ store, send, platform, version, withSync, onLanguage })
+//   store     Store-Instanz (bereits geladen)
+//   send      (kanal, ...args) → Ereignis an die Oberfläche
+//   → { call(kanal, args), notify(kanal, args), close(), ssh, sync, handle }
+const crypto = require('crypto');
+const { utils: sshUtils } = require('ssh2');
+const { SshManager } = require('../main/ssh');
+const { DockerManager } = require('../main/docker');
+const { FirewallManager } = require('../main/firewall');
+const { NetworkConfigManager } = require('../main/network');
+const i18n = require('../i18n');
+
+function createBackend({ store, send, platform, version = '0.0.0', withSync = false, onLanguage = () => {} }) {
+  // Rückfragen an die Oberfläche (Hostschlüssel, Passwörter, Kopplungscode)
+  const pending = new Map();
+  const ask = (ch, req, timeout = 0) => new Promise((resolve) => {
+    const reqId = crypto.randomUUID();
+    pending.set(reqId, resolve);
+    send(ch, { reqId, ...req });
+    if (timeout) setTimeout(() => { if (pending.delete(reqId)) resolve(null); }, timeout);
+  });
+  const answer = (reqId, value) => { const r = pending.get(reqId); pending.delete(reqId); r?.(value); };
+
+  const confirmHostKey = async (target, fingerprint, known) =>
+    !!(await ask('hostkey:request', { host: `${target.host}:${target.port}`, fingerprint, previous: known?.fingerprint || '' }));
+  const askSecret = (sessionId, req) => ask('secret:request', { sessionId, ...req });
+
+  const ssh = new SshManager(store, confirmHostKey, askSecret);
+  const docker = new DockerManager(ssh);
+  const firewall = new FirewallManager(ssh);
+  const network = new NetworkConfigManager(ssh);
+  let sync = null;
+  if (withSync) {
+    const { SyncService } = require('../main/sync');
+    sync = new SyncService(store, send, async (req) => !!(await ask('sync:pairPrompt', req, 115000)));
+    store.onChange = () => sync.schedule();
+  }
+
+  const handlers = new Map();
+  const handle = (ch, fn) => handlers.set(ch, fn);
+  const OPEN_WHILE_LOCKED = new Set(['app:version']);
+
+  async function call(ch, args = []) {
+    const fn = handlers.get(ch);
+    if (!fn) throw new Error(`Unknown channel ${ch}`);
+    if (store.locked && !ch.startsWith('lock:') && !OPEN_WHILE_LOCKED.has(ch)) throw new Error(i18n.t('MrTerm is locked.'));
+    return fn(...args);
+  }
+  const listeners = {
+    'ssh:write': (id, d) => ssh.write(id, d),
+    'ssh:resize': (id, c, r) => ssh.resize(id, c, r),
+    'ssh:close': (id) => ssh.close(id),
+    'ask:reply': answer,
+    // Namen der Desktop-Vorlage (preload.js)
+    'secret:reply': answer,
+    'sync:pairReply': answer,
+  };
+  const notify = (ch, args = []) => { try { listeners[ch]?.(...args); } catch (e) { console.error(e); } };
+
+  // ---------- App-Sperre (Passwort) ----------
+  const kdf = (pw, salt, N) => new Promise((resolve, reject) =>
+    crypto.scrypt(String(pw), salt, 32, { N, r: 8, p: 1, maxmem: 256 * N * 8 }, (e, k) => (e ? reject(e) : resolve(k))));
+  const lockStatus = () => {
+    const { language, appTheme, accent } = store.get().settings;
+    return { enabled: store.lockEnabled, locked: store.locked, hasPassword: !!store.lock?.password, bio: !!store.lock?.bio, fido: [], meta: { language, appTheme, accent } };
+  };
+  const requireUnlocked = () => { if (store.locked) throw new Error(i18n.t('MrTerm is locked.')); };
+  const afterUnlock = () => { onLanguage(store.get().settings.language); sync?.start().catch(() => {}); };
+  handle('lock:status', lockStatus);
+  handle('lock:lock', () => { if (store.lockEnabled) store.locked = true; return lockStatus(); });
+  handle('lock:unlockPassword', async (pw) => {
+    const p = store.lock?.password;
+    if (!p) throw new Error(i18n.t('No password set.'));
+    const kek = await kdf(pw, Buffer.from(p.salt, 'base64'), p.N);
+    try { store.unlockWith(kek, p.wrap); } catch { throw new Error(i18n.t('Wrong password.')); }
+    afterUnlock();
+    return true;
+  });
+  handle('lock:setPassword', async (pw) => {
+    requireUnlocked();
+    if (!pw || String(pw).length < 6) throw new Error(i18n.t('The password must be at least 6 characters long.'));
+    const salt = crypto.randomBytes(16), N = 2 ** 15;
+    const kek = await kdf(pw, salt, N);
+    store.lock = store.lock || { password: null, fido: [] };
+    store.lock.password = { salt: salt.toString('base64'), N, wrap: store.wrapDek(kek) };
+    store.save();
+    return lockStatus();
+  });
+  handle('lock:removePassword', () => {
+    requireUnlocked();
+    if (store.lock) { store.lock.password = null; store.lock.bio = null; }
+    store.dropLockIfEmpty();
+    store.save();
+    return lockStatus();
+  });
+
+  // ---------- Tresor ----------
+  const publicData = () => { const { sync: _s, tombstones: _t, ...rest } = store.get(); return rest; };
+  handle('vault:get', () => ({ ...publicData(), encrypted: store.encrypted, platform }));
+  handle('vault:upsert', (col, item) => store.upsert(col, item));
+  handle('vault:remove', (col, id) => {
+    if (col === 'vpns') store.get().hosts.forEach((h) => { if (h.vpnId === id) { h.vpnId = null; h.updatedAt = Date.now(); } });
+    return store.remove(col, id);
+  });
+  handle('vault:settings', (s) => { store.setSettings(s); if ('language' in s) onLanguage(s.language); });
+  handle('vault:forgetHost', (id) => store.forgetKnownHost(id));
+  handle('vault:exportData', () => publicData());
+  handle('vault:importData', (data) => {
+    for (const col of ['groups', 'hosts', 'keys', 'snippets', 'forwards', 'vpns'])
+      for (const item of data?.[col] || []) store.upsert(col, item);
+    return true;
+  });
+  // entries: [{ folder: ['A','B'], host?: {...} }] – wie am Desktop (Import aus Remote Desktop Manager)
+  handle('vault:bulkImport', (entries) => {
+    const groups = store.get().groups;
+    const ensure = (parts) => {
+      let parent = null;
+      for (const label of parts) {
+        let g = groups.find((x) => (x.parentId || null) === parent && x.label.toLowerCase() === label.toLowerCase());
+        if (!g) { g = { id: crypto.randomUUID(), label, parentId: parent, createdAt: Date.now() }; groups.push(g); }
+        parent = g.id;
+      }
+      return parent;
+    };
+    let hosts = 0, skipped = 0;
+    for (const e of entries) {
+      const groupId = ensure(e.folder || []);
+      if (!e.host) continue;
+      const dup = store.get().hosts.find((h) => h.address === e.host.address && (h.groupId || null) === groupId && (h.label || '') === (e.host.label || '') && (h.protocol || 'ssh') === e.host.protocol);
+      if (dup) { skipped++; continue; }
+      store.get().hosts.push({ ...e.host, id: crypto.randomUUID(), groupId, createdAt: Date.now(), updatedAt: Date.now() });
+      hosts++;
+    }
+    store.save();
+    return { hosts, skipped, groups: groups.length };
+  });
+  handle('app:version', () => version);
+
+  // ---------- Schlüssel ----------
+  handle('key:generate', ({ type, bits, comment, passphrase }) => {
+    const opts = { comment: comment || `mrterm@${platform}` };
+    if (type === 'rsa') opts.bits = Number(bits) || 4096;
+    if (passphrase) { opts.passphrase = passphrase; opts.cipher = 'aes256-cbc'; }
+    const k = sshUtils.generateKeyPairSync(type === 'rsa' ? 'rsa' : type === 'ecdsa' ? 'ecdsa' : 'ed25519', opts);
+    return { privateKey: k.private, publicKey: k.public };
+  });
+  handle('key:parse', ({ privateKey, passphrase }) => {
+    const k = sshUtils.parseKey(privateKey, passphrase || undefined);
+    if (k instanceof Error) throw k;
+    const key = Array.isArray(k) ? k[0] : k;
+    return { type: key.type, publicKey: `${key.type} ${key.getPublicSSH().toString('base64')} ${key.comment || ''}`.trim() };
+  });
+
+  // ---------- SSH-Terminal & SFTP ----------
+  function hostWithOverrides(ref) {
+    if (typeof ref === 'string') {
+      const h = store.resolveHost(ref);
+      if (!h) throw new Error(i18n.t('Host not found'));
+      return h;
+    }
+    if (ref?.ref) return { ...hostWithOverrides(ref.ref), execCommand: ref.execCommand, label: ref.label };
+    return ref;
+  }
+  handle('ssh:open', async (sessionId, ref, size) => {
+    const host = hostWithOverrides(ref);
+    if (host.id && !host.execCommand) store.addHistory({ hostId: host.id, at: Date.now() });
+    await ssh.openShell(sessionId, host, size, (type, payload) => send('ssh:event', sessionId, type, payload));
+    return true;
+  });
+  handle('sftp:open', (id, ref) => ssh.openSftp(id, hostWithOverrides(ref)));
+  handle('sftp:list', (id, dir) => ssh.sftpList(id, dir));
+  handle('sftp:op', (id, op, a, b) => ssh.sftpOp(id, op, a, b));
+  handle('sftp:close', (id) => ssh.close(id));
+
+  // ---------- Docker / Firewall / Netzwerk ----------
+  handle('docker:open', (id, ref) => docker.open(id, hostWithOverrides(ref), () => send('docker:closed', id)));
+  handle('docker:list', (id) => docker.list(id));
+  handle('docker:stats', (id) => docker.stats(id));
+  handle('docker:action', (id, action, cid) => docker.action(id, action, cid));
+  handle('docker:command', (id, kind, cid) => docker.command(id, kind, cid));
+  handle('docker:close', (id) => docker.close(id));
+  handle('firewall:open', (id, ref) => firewall.open(id, hostWithOverrides(ref), () => send('firewall:closed', id)));
+  handle('firewall:list', (id, backend) => firewall.list(id, backend));
+  handle('firewall:ufw', (id, op, args) => firewall.ufw(id, op, args));
+  handle('firewall:ipt', (id, op, args) => firewall.ipt(id, op, args));
+  handle('firewall:close', (id) => firewall.close(id));
+  handle('network:open', (id, ref) => network.open(id, hostWithOverrides(ref), () => send('network:closed', id)));
+  handle('network:read', (id) => network.read(id));
+  handle('network:save', (id, model, verify) => network.saveInterface(id, model, verify));
+  handle('network:remove', (id, model) => network.removeInterface(id, model));
+  handle('network:hostname', (id, name) => network.setHostname(id, name));
+  handle('network:resolv', (id, servers, search) => network.setResolv(id, servers, search));
+  handle('network:readFile', (id, path) => network.readFile(id, path));
+  handle('network:writeFile', (id, path, content, verify) => network.writeFile(id, path, content, verify));
+  handle('network:close', (id) => network.close(id));
+
+  // ---------- Synchronisation ----------
+  if (sync) {
+    handle('sync:status', () => sync.status());
+    handle('sync:enable', (on, name) => sync.setEnabled(on, name));
+    handle('sync:pairable', (on) => { sync.setPairable(on); return sync.status(); });
+    handle('sync:pair', (id) => sync.pair(id));
+    handle('sync:unpair', (id) => sync.unpair(id));
+    handle('sync:now', () => sync.syncAll());
+    handle('sync:share', (sel) => sync.setShare(sel));
+    handle('sync:shareItem', (c, id, yes) => sync.shareItem(c, id, yes));
+    handle('sync:probe', (address) => sync.probe(address));
+  }
+
+  function close() {
+    ssh.closeAll?.();
+    sync?.stop();
+    for (const r of pending.values()) r(null);
+    pending.clear();
+  }
+
+  return { call, notify, close, handle, ssh, sync, store, kdf, requireUnlocked, lockStatus };
+}
+
+module.exports = { createBackend };

src/i18n.js

@@ -597,6 +597,91 @@
     'Should this secret be synchronized to your paired devices ({names})? You can change this later under Settings → Synchronization.': 'Soll dieses Geheimnis mit deinen gekoppelten Geräten ({names}) synchronisiert werden? Du kannst das später unter Einstellungen → Synchronisation ändern.',
     'Don\'t share': 'Nicht teilen',
     'Share': 'Teilen',
+    // Android-App
+    'Lock': 'Sperren',
+    'Add your first server or pair this phone with MrTerm on your computer to take over your hosts.': 'Lege deinen ersten Server an oder kopple dieses Handy mit MrTerm auf deinem Computer, um deine Hosts zu übernehmen.',
+    'No matching hosts. Press Enter to connect to “{q}”.': 'Keine passenden Hosts. Drücke Enter, um dich mit „{q}“ zu verbinden.',
+    'RDP is not available on Android': 'RDP ist unter Android nicht verfügbar',
+    'Please enter a name.': 'Bitte einen Namen eingeben.',
+    'Sessions': 'Sitzungen',
+    'New connection': 'Neue Verbindung',
+    'Paste': 'Einfügen',
+    'Copy selection': 'Auswahl kopieren',
+    'Nothing selected. Long-press the terminal to select text.': 'Nichts ausgewählt. Halte das Terminal gedrückt, um Text auszuwählen.',
+    'Larger font': 'Schrift größer',
+    'Smaller font': 'Schrift kleiner',
+    'Close session': 'Sitzung schließen',
+    'Generate a new SSH key or import an existing one.': 'Erzeuge einen neuen SSH-Schlüssel oder importiere einen vorhandenen.',
+    'Key created': 'Schlüssel erstellt',
+    'Add the public key to ~/.ssh/authorized_keys on your servers.': 'Trage den öffentlichen Schlüssel auf deinen Servern in ~/.ssh/authorized_keys ein.',
+    'Save frequently used commands and send them to a terminal with one tap.': 'Speichere häufig genutzte Befehle und sende sie mit einem Tippen an ein Terminal.',
+    'Run in terminal': 'Im Terminal ausführen',
+    'Command': 'Befehl',
+    'End the command with a line break to run it immediately.': 'Endet der Befehl mit einem Zeilenumbruch, wird er sofort ausgeführt.',
+    'Please enter a command.': 'Bitte einen Befehl eingeben.',
+    'General': 'Allgemein',
+    'System language': 'Systemsprache',
+    'Known hosts': 'Bekannte Hosts',
+    '{n} saved host keys': '{n} gespeicherte Hostschlüssel',
+    'Show': 'Anzeigen',
+    'Version {v}': 'Version {v}',
+    'Updates are installed with Obtainium.': 'Updates werden mit Obtainium installiert.',
+    'No known hosts yet.': 'Noch keine bekannten Hosts.',
+    'Remove host key?': 'Hostschlüssel entfernen?',
+    'Immediately': 'Sofort',
+    'After 1 minute': 'Nach 1 Minute',
+    'After 5 minutes': 'Nach 5 Minuten',
+    'Protect MrTerm with a password and optionally your fingerprint. The vault is then additionally encrypted.': 'Schütze MrTerm mit einem Passwort und optional deinem Fingerabdruck. Der Tresor wird dann zusätzlich verschlüsselt.',
+    'Remove app lock': 'App-Sperre entfernen',
+    'Remove app lock?': 'App-Sperre entfernen?',
+    'MrTerm will open without a password.': 'MrTerm öffnet sich dann ohne Passwort.',
+    'Unlock with fingerprint': 'Mit Fingerabdruck entsperren',
+    'Uses the fingerprint or face unlock of this phone.': 'Nutzt den Fingerabdruck- oder Gesichtsscanner dieses Handys.',
+    'Confirm fingerprint': 'Fingerabdruck bestätigen',
+    'Lock when leaving the app': 'Sperren beim Verlassen der App',
+    'Enter your password to unlock.': 'Gib dein Passwort ein, um zu entsperren.',
+    'Unlock MrTerm': 'MrTerm entsperren',
+    'Use password': 'Passwort verwenden',
+    'Your fingerprints have changed. Unlock with your password and set up fingerprint unlock again.': 'Deine Fingerabdrücke haben sich geändert. Entsperre mit deinem Passwort und richte das Entsperren per Fingerabdruck neu ein.',
+    'Take over hosts, groups, snippets and known hosts from MrTerm on your computer. The connection is end-to-end encrypted and stays in your local network.': 'Übernimm Hosts, Gruppen, Snippets und bekannte Hosts von MrTerm auf deinem Computer. Die Verbindung ist Ende-zu-Ende verschlüsselt und bleibt in deinem lokalen Netzwerk.',
+    'Both devices must be in the same Wi-Fi. If nothing is found, allow UDP port 47811 and TCP port 47812 in the firewall of your computer.': 'Beide Geräte müssen im selben WLAN sein. Wird nichts gefunden, gib in der Firewall deines Computers UDP-Port 47811 und TCP-Port 47812 frei.',
+    'Or enter an IP address': 'Oder IP-Adresse eingeben',
+    'Copy failed': 'Kopieren fehlgeschlagen',
+    'Fingerprint unlock is not set up.': 'Entsperren per Fingerabdruck ist nicht eingerichtet.',
+    'Fingerprint unlock failed. Use your password.': 'Entsperren per Fingerabdruck fehlgeschlagen. Verwende dein Passwort.',
+    'Set a password first.': 'Lege zuerst ein Passwort fest.',
+    // Web-Version
+    'RDP is not available in the web version.': 'RDP ist in der Web-Version nicht verfügbar.',
+    'Account': 'Konto',
+    'Signed in as {name}': 'Angemeldet als {name}',
+    'Administrator': 'Administrator',
+    'Current password': 'Aktuelles Passwort',
+    'Sign out': 'Abmelden',
+    'Users': 'Benutzer',
+    'User': 'Benutzer',
+    'Delete user?': 'Benutzer löschen?',
+    '“{name}” and their vault will be permanently deleted.': '„{name}“ und der zugehörige Tresor werden endgültig gelöscht.',
+    'Add user': 'Benutzer hinzufügen',
+    'Your vault is stored on the server, encrypted with a key that only your login password can unlock.': 'Dein Tresor liegt auf dem Server, verschlüsselt mit einem Schlüssel, den nur dein Login-Passwort entsperren kann.',
+    'Folders cannot be downloaded in the browser: {name}': 'Ordner können im Browser nicht heruntergeladen werden: {name}',
+    'Welcome! Create the administrator account for this MrTerm server.': 'Willkommen! Lege das Administrator-Konto für diesen MrTerm-Server an.',
+    'Sign in to your MrTerm server.': 'Melde dich an deinem MrTerm-Server an.',
+    'Create account': 'Konto anlegen',
+    'Sign in': 'Anmelden',
+    'Administrators only.': 'Nur für Administratoren.',
+    'Forbidden': 'Nicht erlaubt',
+    'Not signed in': 'Nicht angemeldet',
+    'Setup is already complete.': 'Die Einrichtung ist bereits abgeschlossen.',
+    'The current password is wrong.': 'Das aktuelle Passwort ist falsch.',
+    'The last administrator cannot be deleted.': 'Der letzte Administrator kann nicht gelöscht werden.',
+    'Too many failed attempts. Try again in 15 minutes.': 'Zu viele Fehlversuche. Versuche es in 15 Minuten erneut.',
+    'User not found.': 'Benutzer nicht gefunden.',
+    'Wrong username or password.': 'Benutzername oder Passwort falsch.',
+    'You cannot delete yourself.': 'Du kannst dich nicht selbst löschen.',
+    'The password must be at least 8 characters long.': 'Das Passwort muss mindestens 8 Zeichen lang sein.',
+    'This username is already taken.': 'Dieser Benutzername ist bereits vergeben.',
+    'Usernames may contain letters, digits and . _ @ - (max. 64).': 'Benutzernamen dürfen Buchstaben, Ziffern und . _ @ - enthalten (max. 64).',
+    'Connection lost – reconnecting …': 'Verbindung verloren – verbinde neu …',
     // Main-Prozess
     'Host key has changed!': 'Host-Schlüssel hat sich geändert!',
     'Unknown host': 'Unbekannter Host',

src/main/ssh.js

@@ -35,7 +35,7 @@ class SshManager {
     const cfg = {
       host: host.address,
       port: Number(host.port) || 22,
-      username: host.username || os.userInfo().username,
+      username: host.username || (() => { try { return os.userInfo().username; } catch { return 'root'; } })(),
       readyTimeout: 20000,
       keepaliveInterval: (this.store.get().settings.keepAlive || 0) * 1000,
       tryKeyboard: true,

src/main/store.js

@@ -1,6 +1,7 @@
 // Persistenter Vault: Hosts, Keys, Snippets, Forwards, Settings.
 // Wird mit Electron safeStorage (DPAPI unter Windows, libsecret/kwallet unter Linux) verschlüsselt.
-const { app, safeStorage } = require('electron');
+// Im Web-Server gibt es kein Electron: dort übergibt der Aufrufer Verzeichnis und Verschlüsselung (opts)
+const electron = (() => { try { const e = require('electron'); return typeof e === 'object' ? e : {}; } catch { return {}; } })();
 const fs = require('fs');
 const path = require('path');
 const crypto = require('crypto');
@@ -57,8 +58,10 @@ function unbox(key, b) {
 }
 
 class Store {
-  constructor() {
+  // opts: { dir, crypto } – crypto hat die Schnittstelle von Electrons safeStorage
-    this.dir = app.getPath('userData');
+  constructor(opts = {}) {
+    this.dir = opts.dir || electron.app.getPath('userData');
+    this.crypto = opts.crypto || electron.safeStorage;
     this.file = path.join(this.dir, 'vault.dat');
     this.data = structuredClone(DEFAULTS);
     this.encrypted = false;
@@ -97,9 +100,9 @@ class Store {
 
   canEncrypt() {
     try {
-      if (!safeStorage.isEncryptionAvailable()) return false;
+      if (!this.crypto.isEncryptionAvailable()) return false;
       // Unter Linux ohne Keyring fällt Electron auf "basic_text" zurück – das ist keine echte Verschlüsselung.
-      if (process.platform === 'linux' && safeStorage.getSelectedStorageBackend?.() === 'basic_text') return false;
+      if (process.platform === 'linux' && this.crypto.getSelectedStorageBackend?.() === 'basic_text') return false;
       return true;
     } catch { return false; }
   }
@@ -110,7 +113,7 @@ class Store {
     const raw = fs.readFileSync(this.file);
     let json;
     if (raw.slice(0, 4).toString() === 'ENC1') {
-      json = safeStorage.decryptString(raw.slice(4));
+      json = this.crypto.decryptString(raw.slice(4));
       this.encrypted = true;
     } else {
       json = raw.toString('utf8');
@@ -136,7 +139,7 @@ class Store {
     }
     const tmp = this.file + '.tmp';
     if (this.canEncrypt()) {
-      fs.writeFileSync(tmp, Buffer.concat([Buffer.from('ENC1'), safeStorage.encryptString(json)]));
+      fs.writeFileSync(tmp, Buffer.concat([Buffer.from('ENC1'), this.crypto.encryptString(json)]));
       this.encrypted = true;
     } else {
       fs.writeFileSync(tmp, json, { mode: 0o600 });

src/main/sync.js

@@ -193,7 +193,7 @@ class SyncService {
     d.sync ||= { enabled: false, peers: [], share: { keys: [], hosts: [], vpns: [] } };
     const s = d.sync;
     if (!s.deviceId) s.deviceId = crypto.randomUUID();
-    if (!s.deviceName) s.deviceName = os.hostname();
+    if (!s.deviceName) s.deviceName = process.env.MRTERM_DEVICE || os.hostname();
     s.peers ||= []; s.share ||= { keys: [], hosts: [], vpns: [] };
     return s;
   }
@@ -241,7 +241,9 @@ class SyncService {
   // ------------------------------------------------ Finden
   broadcastAddrs() {
     const out = new Set(['255.255.255.255']);
-    for (const list of Object.values(os.networkInterfaces())) {
+    let ifaces = {};
+    try { ifaces = os.networkInterfaces(); } catch {} // Android: je nach Version eingeschränkt
+    for (const list of Object.values(ifaces)) {
       for (const a of list || []) {
         if (a.family !== 'IPv4' || a.internal) continue;
         const ip = a.address.split('.').map(Number), mask = a.netmask.split('.').map(Number);

src/renderer/app-themes.css

@@ -0,0 +1,110 @@
+/* App-Designs: gemeinsame Farbvariablen für Desktop (src/renderer) und Android-App (mobile/web) */
+:root {
+  --bg: #13151c;
+  --bg-2: #181b24;
+  --panel: #1c1f2a;
+  --card: #212533;
+  --card-hover: #282d3d;
+  --border: #2b3040;
+  --text: #e6e8ef;
+  --muted: #8b91a5;
+  --faint: #5d6377;
+  --accent: #6e7bff;
+  --accent-2: #8b95ff;
+  --green: #3ecf8e;
+  --red: #ff5f6d;
+  --orange: #ffb454;
+  --accent-3: #b36bff;
+  --chrome: #0f1117;
+  --chrome-line: #1f2330;
+  --hover: #1a1d27;
+  --nav-active: #1f2233;
+  --icon-bg: #2a2f45;
+  --folder: #6ea8ff;
+  --row-line: #1c1f29;
+  --overlay: #13151ce6;
+  --tint: 255 255 255;
+  --radius: 10px;
+  --on-accent: #ffffff;
+  --font: 'Inter', 'Segoe UI', system-ui, -apple-system, 'Noto Sans', sans-serif;
+}
+:root { --accent-2: color-mix(in srgb, var(--accent) 78%, white); }
+[data-theme='navy'] {
+  --bg: #141729; --bg-2: #181c33; --panel: #1c2139; --card: #212742; --card-hover: #29304f; --border: #2e3657;
+  --text: #e8eaf6; --muted: #8e95b8; --faint: #5f6690; --accent: #21c7a8; --accent-3: #3a8dff;
+  --chrome: #0f1122; --chrome-line: #20264a; --hover: #1b2040; --nav-active: #232a52; --icon-bg: #2a3260; --row-line: #1c2140; --overlay: #141729e6;
+}
+[data-theme='nord'] {
+  --bg: #2e3440; --bg-2: #323846; --panel: #3b4252; --card: #3b4252; --card-hover: #434c5e; --border: #4c566a;
+  --text: #eceff4; --muted: #b5bdcc; --faint: #7b8598; --accent: #88c0d0; --accent-3: #81a1c1; --green: #a3be8c; --red: #bf616a; --orange: #d08770;
+  --chrome: #272c36; --chrome-line: #3b4252; --hover: #3b4252; --nav-active: #434c5e; --icon-bg: #4c566a; --folder: #81a1c1; --row-line: #3b4252; --overlay: #2e3440e6;
+}
+[data-theme='dracula'] {
+  --bg: #282a36; --bg-2: #2c2e3b; --panel: #313343; --card: #343746; --card-hover: #3e4153; --border: #44475a;
+  --text: #f8f8f2; --muted: #b3b6c8; --faint: #6272a4; --accent: #bd93f9; --accent-3: #ff79c6; --green: #50fa7b; --red: #ff5555; --orange: #ffb86c;
+  --chrome: #21222c; --chrome-line: #343746; --hover: #2f3140; --nav-active: #383a4c; --icon-bg: #44475a; --folder: #8be9fd; --row-line: #313343; --overlay: #282a36e6;
+}
+[data-theme='mocha'] {
+  --bg: #1e1e2e; --bg-2: #232334; --panel: #28283b; --card: #2a2a3d; --card-hover: #313244; --border: #3b3b52;
+  --text: #cdd6f4; --muted: #a6adc8; --faint: #6c7086; --accent: #cba6f7; --accent-3: #f5c2e7; --green: #a6e3a1; --red: #f38ba8; --orange: #fab387;
+  --chrome: #181825; --chrome-line: #292939; --hover: #252536; --nav-active: #313244; --icon-bg: #3a3a55; --folder: #89b4fa; --row-line: #28283b; --overlay: #1e1e2ee6;
+}
+[data-theme='forest'] {
+  --bg: #141a17; --bg-2: #18201c; --panel: #1c2621; --card: #1f2a24; --card-hover: #26342c; --border: #2d3d34;
+  --text: #e3ece6; --muted: #92a69a; --faint: #5e7266; --accent: #4cc38a; --accent-3: #b5e655; --folder: #7cc6a5;
+  --chrome: #0f1411; --chrome-line: #1f2a24; --hover: #1a231e; --nav-active: #213029; --icon-bg: #294034; --row-line: #1c2621; --overlay: #141a17e6;
+}
+[data-theme='light'] {
+  --bg: #f6f7fb; --bg-2: #eef0f6; --panel: #ffffff; --card: #ffffff; --card-hover: #f0f2fa; --border: #dde1ec;
+  --text: #1f2330; --muted: #5d6477; --faint: #9097aa; --accent: #5b67f1; --accent-3: #9b59f5; --green: #1f9d63; --red: #d63a4a; --orange: #c97a00;
+  --chrome: #e9ecf4; --chrome-line: #d8dce8; --hover: #dfe3ee; --nav-active: #d9ddf5; --icon-bg: #e6e9f7; --folder: #3d7de0; --row-line: #eceef5; --overlay: #f6f7fbe6;
+  --tint: 0 0 0;
+  --accent-2: color-mix(in srgb, var(--accent) 85%, black);
+}
+
+/* Windows XP (Luna) */
+[data-theme='xp'] {
+  --bg: #ece9d8; --bg-2: #e3dfcb; --panel: #ffffff; --card: #ffffff; --card-hover: #f1efe2; --border: #aca899;
+  --text: #000000; --muted: #4a4a4a; --faint: #7f7f7f; --accent: #316ac5; --accent-3: #3a9a3a; --green: #2b8a2b; --red: #c81e1e; --orange: #d87400;
+  --chrome: #d6dff7; --chrome-line: #7a96df; --hover: #e8eefc; --nav-active: #c1d2ee; --icon-bg: #dde7f8; --folder: #e0a92a; --row-line: #ece9d8; --overlay: #ece9d8e6;
+  --tint: 0 0 0; --radius: 3px; --font: Tahoma, Verdana, 'Segoe UI', sans-serif;
+  --accent-2: color-mix(in srgb, var(--accent) 85%, black);
+}
+/* Windows 11 (hell, Mica) */
+[data-theme='win11'] {
+  --bg: #f3f3f3; --bg-2: #eeeeee; --panel: #fbfbfb; --card: #ffffff; --card-hover: #f6f6f6; --border: #e5e5e5;
+  --text: #1b1b1b; --muted: #5f5f5f; --faint: #8a8a8a; --accent: #0067c0; --accent-3: #8764b8; --green: #0f7b0f; --red: #c42b1c; --orange: #9d5d00;
+  --chrome: #ebebeb; --chrome-line: #e0e0e0; --hover: #eaeaea; --nav-active: #e0e0e0; --icon-bg: #e6eef8; --folder: #e8a33d; --row-line: #efefef; --overlay: #f3f3f3e6;
+  --tint: 0 0 0; --radius: 8px; --font: 'Segoe UI Variable', 'Segoe UI', system-ui, sans-serif;
+  --accent-2: color-mix(in srgb, var(--accent) 85%, black);
+}
+/* macOS 26 „Liquid Glass“: milchige, durchscheinende Flächen über einem farbigen Hintergrund */
+[data-theme='macos'] {
+  --bg: rgba(255, 255, 255, .34); --bg-2: rgba(255, 255, 255, .28); --panel: rgba(255, 255, 255, .55); --card: rgba(255, 255, 255, .48);
+  --card-hover: rgba(255, 255, 255, .68); --border: rgba(255, 255, 255, .7);
+  --text: #1d1d1f; --muted: #55555c; --faint: #8a8a92; --accent: #007aff; --accent-3: #af52de; --green: #248a3d; --red: #e0352b; --orange: #c96b00;
+  --chrome: rgba(255, 255, 255, .3); --chrome-line: rgba(255, 255, 255, .55); --hover: rgba(255, 255, 255, .45); --nav-active: rgba(255, 255, 255, .72);
+  --icon-bg: rgba(0, 122, 255, .12); --folder: #1a8cff; --row-line: rgba(255, 255, 255, .5); --overlay: rgba(240, 242, 250, .55);
+  --tint: 0 0 0; --radius: 14px; --font: -apple-system, 'SF Pro Text', 'Helvetica Neue', 'Inter', system-ui, sans-serif;
+  --accent-2: color-mix(in srgb, var(--accent) 85%, black);
+  --glass-blur: blur(26px) saturate(185%);
+  --glass-edge: inset 0 1px 0 rgba(255, 255, 255, .95), inset 0 -1px 0 rgba(255, 255, 255, .3), 0 10px 30px rgba(30, 40, 80, .10);
+}
+/* Hintergrund, durch den das Glas schimmert */
+[data-theme='macos'] {
+  --wallpaper:
+    radial-gradient(at 12% 18%, #9cc2ff 0, transparent 46%),
+    radial-gradient(at 88% 12%, #f7b6dd 0, transparent 42%),
+    radial-gradient(at 72% 88%, #98e2d2 0, transparent 46%),
+    radial-gradient(at 18% 92%, #ffd6a0 0, transparent 42%),
+    #eef1f8;
+}
+html[data-theme='macos'], html[data-theme='macos'] body { background: var(--wallpaper); background-attachment: fixed; }
+/* Cyberpunk 2077 */
+[data-theme='cyberpunk'] {
+  --bg: #0a0a0f; --bg-2: #0e0e15; --panel: #111119; --card: #15151f; --card-hover: #1e1c10; --border: #3d3a14;
+  --text: #eafcff; --muted: #8fb8c8; --faint: #5a7680; --accent: #fcee0a; --accent-3: #00f0ff; --green: #00ff9f; --red: #ff003c; --orange: #ff9e00;
+  --chrome: #07070b; --chrome-line: #2a2808; --hover: #17161b; --nav-active: #232008; --icon-bg: #26240b; --folder: #00f0ff; --row-line: #17161f; --overlay: #0a0a0fe6;
+  --radius: 2px; --on-accent: #0a0a0f; --font: 'Rajdhani', 'Orbitron', 'Bahnschrift', 'DIN Alternate', 'Segoe UI', system-ui, sans-serif;
+  --accent-2: #fff45c;
+}

src/renderer/app.js

@@ -5,9 +5,12 @@
 const $ = (sel, root = document) => root.querySelector(sel);
 const $$ = (sel, root = document) => [...root.querySelectorAll(sel)];
 const esc = (s) => String(s ?? '').replace(/[&<>"']/g, (c) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]));
-const uid = () => crypto.randomUUID();
+// crypto.randomUUID gibt es nur in sicheren Kontexten (HTTPS/localhost) – die Web-Version läuft oft per http://<server>
+const uid = () => (crypto.randomUUID ? crypto.randomUUID() : ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, (c) => (c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))).toString(16)));
 function h(html) { const t = document.createElement('template'); t.innerHTML = html.trim(); return t.content.firstElementChild; }
 const T = I18N.t;
+// Web-Version (Docker, src/web): gleiche Oberfläche im Browser; ohne RDP, VPN, Port-Forwarding und lokale Dateien
+const WEB = api.platform === 'web';
 
 const ICONS = {
   search: '<svg viewBox="0 0 24 24"><circle cx="11" cy="11" r="7"/><path d="M20 20l-4-4"/></svg>',
@@ -407,6 +410,7 @@ function connectHost(hst) {
 }
 
 async function openRdp(hst) {
+  if (WEB) return toast(T('RDP is not available in the web version.'), 'error');
   if (settings().rdpEmbed !== false) {
     const s = await api.call('rdp:embedSupported').catch((e) => ({ ok: false, reason: e.message }));
     if (s.ok) return new RdpSession(hst);
@@ -863,6 +867,60 @@ function viewHistory(page) {
 }
 
 // ============================================================ Einstellungen
+// ---------- Web-Version: Konto und Benutzerverwaltung (HTTP-API des Web-Servers)
+async function webApi(path, body) {
+  const r = await fetch(path, { method: body === undefined ? 'GET' : 'POST', headers: { 'Content-Type': 'application/json', 'X-MrTerm': '1' }, body: body === undefined ? undefined : JSON.stringify(body) });
+  const j = await r.json().catch(() => ({}));
+  if (!r.ok) throw new Error(T(j.error || r.statusText));
+  return j;
+}
+function webAccountCard() {
+  const card = h(`<div class="settings-card"><h3>${T('Account')}</h3><div class="acc"></div></div>`);
+  const draw = async () => {
+    const box = $('.acc', card);
+    let me;
+    try { me = await webApi('/api/me'); } catch (e) { box.textContent = e.message; return; }
+    box.innerHTML = `<p style="color:var(--muted);margin-top:0">${esc(T('Signed in as {name}', { name: me.name }))}${me.admin ? ` · ${esc(T('Administrator'))}` : ''}</p><div class="row" style="flex-wrap:wrap"></div>`;
+    const pw = h(`<button class="btn">${esc(T('Change password'))}</button>`);
+    pw.onclick = async () => {
+      const r = await modal({ title: T('Change password'), body: `<div class="field"><label>${esc(T('Current password'))}</label><input name="old" type="password"/></div><div class="field"><label>${esc(T('New password'))}</label><input name="a" type="password"/></div><div class="field"><label>${esc(T('Repeat password'))}</label><input name="b" type="password"/></div>`,
+        buttons: [{ label: T('Cancel'), value: null, cls: 'ghost' }, { label: T('Save'), value: 'form', cls: 'primary' }] });
+      if (!r) return;
+      if (r.a !== r.b) return toast(T('The passwords do not match.'), 'error');
+      try { await webApi('/api/password', { old: r.old, password: r.a }); toast(T('Saved'), 'ok'); } catch (e) { toast(e.message, 'error'); }
+    };
+    const out = h(`<button class="btn">${esc(T('Sign out'))}</button>`);
+    out.onclick = async () => { await webApi('/api/logout', {}).catch(() => {}); location.href = '/'; };
+    $('.row', box).append(pw, out);
+    if (!me.admin) return;
+    const users = await webApi('/api/users').catch(() => ({ users: [] }));
+    const list = h(`<div style="margin-top:16px"><h4 style="margin:0 0 8px">${esc(T('Users'))}</h4></div>`);
+    for (const u of users.users) {
+      const row = h(`<div class="lock-row"><div class="grow"><b>${esc(u.name)}</b><div class="sub">${u.admin ? esc(T('Administrator')) : esc(T('User'))}</div></div></div>`);
+      if (u.id !== me.id) {
+        const del = h(`<button class="btn ghost" title="${esc(T('Delete'))}">${ICONS.trash}</button>`);
+        del.onclick = async () => {
+          if (!(await confirmBox(T('Delete user?'), T('“{name}” and their vault will be permanently deleted.', { name: u.name })))) return;
+          try { await webApi('/api/users/delete', { id: u.id }); draw(); } catch (e) { toast(e.message, 'error'); }
+        };
+        row.append(del);
+      }
+      list.append(row);
+    }
+    const add = h(`<button class="btn" style="margin-top:10px">${ICONS.plus}${esc(T('Add user'))}</button>`);
+    add.onclick = async () => {
+      const r = await modal({ title: T('Add user'), body: `<div class="field"><label>${esc(T('Username'))}</label><input name="name" autocomplete="off"/></div><div class="field"><label>${esc(T('Password'))}</label><input name="password" type="password" autocomplete="new-password"/></div><label class="check"><input type="checkbox" name="admin"/>${esc(T('Administrator'))}</label>`,
+        buttons: [{ label: T('Cancel'), value: null, cls: 'ghost' }, { label: T('Add user'), value: 'form', cls: 'primary' }] });
+      if (!r) return;
+      try { await webApi('/api/users', r); toast(T('Saved'), 'ok'); draw(); } catch (e) { toast(e.message, 'error'); }
+    };
+    list.append(add);
+    box.append(list);
+  };
+  draw();
+  return card;
+}
+
 async function viewSettings(page) {
   const st = settings();
   page.append(h(`<div class="toolbar"><h2 style="margin:0;font-size:18px">${T('Settings')}</h2></div>`));
@@ -931,9 +989,9 @@ async function viewSettings(page) {
     if (!d.available) $('.rdp-info', rdpCard).style.color = 'var(--orange)';
   }).catch(() => {});
 
-  const dataCard = h(`<div class="settings-card"><h3>${T('Data')}</h3><p style="color:var(--muted);margin-top:0">${S.vault.encrypted ? T('The vault is encrypted with the operating system keyring (Windows DPAPI / libsecret or KWallet).') : T('The vault is not encrypted because no keyring is available. On Arch/CachyOS: install <code>gnome-keyring</code> or <code>kwallet</code>.')}</p><div class="row" style="flex-wrap:wrap"></div></div>`);
+  const dataCard = h(`<div class="settings-card"><h3>${T('Data')}</h3><p style="color:var(--muted);margin-top:0">${WEB ? T('Your vault is stored on the server, encrypted with a key that only your login password can unlock.') : S.vault.encrypted ? T('The vault is encrypted with the operating system keyring (Windows DPAPI / libsecret or KWallet).') : T('The vault is not encrypted because no keyring is available. On Arch/CachyOS: install <code>gnome-keyring</code> or <code>kwallet</code>.')}</p><div class="row" style="flex-wrap:wrap"></div></div>`);
   const btns = [
-    [T('Import ~/.ssh/config'), importSshConfig],
+    ...(WEB ? [] : [[T('Import ~/.ssh/config'), importSshConfig]]),
     [T('Export backup'), async () => { const p = await call('vault:export'); if (p) toast(T('Exported to {path}', { path: p }), 'ok'); }],
     [T('Import backup'), async () => { if (await call('vault:import')) { toast(T('Import complete'), 'ok'); reload(); } }],
   ];
@@ -985,7 +1043,8 @@ async function viewSettings(page) {
     <span>${C}+<kbd>Shift</kbd>+<kbd>F</kbd></span><span>${T('Search in terminal')}</span>
     <span>${C}+<kbd>+/−/0</kbd></span><span>${T('Font size')}</span>
     <span>${C}+<kbd>Shift</kbd>+<kbd>L</kbd></span><span>${T('Lock now')}</span></div></div>`);
-  c.append(langCard, secCard, syncCard, designCard, themeCard, termCard, rdpCard, importCard, dataCard, updCard, keysCard);
+  if (WEB) c.append(langCard, webAccountCard(), designCard, themeCard, termCard, importCard, dataCard, keysCard);
+  else c.append(langCard, secCard, syncCard, designCard, themeCard, termCard, rdpCard, importCard, dataCard, updCard, keysCard);
 }
 
 // ============================================================ App-Sperre
@@ -1643,7 +1702,7 @@ class FilePane {
       <input class="path" spellcheck="false"/>
       <button class="btn ghost sm" data-p="refresh" title="${T('Refresh')}">${ICONS.refresh}</button>
       <button class="btn ghost sm" data-p="mkdir" title="${T('New folder')}">${ICONS.newdir}</button>
-      <button class="btn ghost sm" data-p="xfer" title="${side === 'local' ? T('Upload →') : T('← Download')}">${side === 'local' ? ICONS.arrowR : ICONS.arrowL}</button></div>
+      ${WEB ? `<button class="btn ghost sm" data-p="upload" title="${T('Upload')}">${ICONS.upload}</button><button class="btn ghost sm" data-p="xfer" title="${T('Download')}">${ICONS.download}</button>` : `<button class="btn ghost sm" data-p="xfer" title="${side === 'local' ? T('Upload →') : T('← Download')}">${side === 'local' ? ICONS.arrowR : ICONS.arrowL}</button>`}</div>
       <div class="files"></div></div>`);
     this.el.addEventListener('click', (e) => {
       const p = e.target.closest('[data-p]')?.dataset.p;
@@ -1652,16 +1711,34 @@ class FilePane {
       if (p === 'refresh') this.go(this.cwd);
       if (p === 'mkdir') this.mkdir();
       if (p === 'xfer') this.transferSelected();
+      if (p === 'upload') this.pickUpload();
     });
     $('.path', this.el).addEventListener('keydown', (e) => { if (e.key === 'Enter') this.go(e.target.value); });
     const files = $('.files', this.el);
     files.addEventListener('contextmenu', (e) => { if (!e.target.closest('tr[data-i]')) { e.preventDefault(); ctxMenu(e.clientX, e.clientY, [{ label: T('New folder'), icon: 'newdir', run: () => this.mkdir() }, { label: T('Refresh'), icon: 'refresh', run: () => this.go(this.cwd) }]); } });
     // Drag & Drop zwischen den Panes
-    this.el.addEventListener('dragover', (e) => { if (S.drag && S.drag.pane !== this) { e.preventDefault(); this.el.classList.add('dragover'); } });
+    // Web-Version: Dateien aus dem Betriebssystem in den Server-Bereich ziehen = hochladen
+    const osFiles = (e) => WEB && [...(e.dataTransfer?.types || [])].includes('Files');
+    this.el.addEventListener('dragover', (e) => { if ((S.drag && S.drag.pane !== this) || osFiles(e)) { e.preventDefault(); this.el.classList.add('dragover'); } });
     this.el.addEventListener('dragleave', (e) => { if (!this.el.contains(e.relatedTarget)) this.el.classList.remove('dragover'); });
-    this.el.addEventListener('drop', (e) => { e.preventDefault(); this.el.classList.remove('dragover'); if (S.drag && S.drag.pane !== this) S.drag.pane.transferSelected(); S.drag = null; });
+    this.el.addEventListener('drop', (e) => {
+      e.preventDefault(); this.el.classList.remove('dragover');
+      if (osFiles(e)) return this.uploadFiles([...e.dataTransfer.files]);
+      if (S.drag && S.drag.pane !== this) S.drag.pane.transferSelected();
+      S.drag = null;
+    });
   }
   get other() { return this.side === 'local' ? this.sftp.remote : this.sftp.local; }
+  pickUpload() {
+    const inp = h('<input type="file" multiple style="display:none"/>');
+    inp.onchange = () => { this.uploadFiles([...inp.files]); inp.remove(); };
+    document.body.append(inp);
+    inp.click();
+  }
+  async uploadFiles(files) {
+    for (const f of files) await this.sftp.webTransfer('upload', f, `${this.cwd.replace(/\/$/, '')}/${f.name}`, f.name);
+    this.go(this.cwd);
+  }
   async join(...p) { return this.side === 'local' ? api.call('local:join', ...p) : p.join('/').replace(/\/+/g, '/'); }
   async parent(p) { return this.side === 'local' ? api.call('local:parent', p) : (p.replace(/\/[^/]+\/?$/, '') || '/'); }
   async list(dir) { return this.side === 'local' ? api.call('local:list', dir) : api.call('sftp:list', this.sftp.id, dir); }
@@ -1756,6 +1833,14 @@ class FilePane {
   async transferSelected() {
     const names = [...this.sel];
     if (!names.length) return toast(T('Nothing selected'));
+    if (WEB) {
+      for (const n of names) {
+        const f = this.files.find((x) => x.name === n);
+        if (f?.isDir) { toast(T('Folders cannot be downloaded in the browser: {name}', { name: n })); continue; }
+        this.sftp.webTransfer('download', null, await this.join(this.cwd, n), n);
+      }
+      return;
+    }
     const target = this.other;
     for (const n of names) {
       const src = await this.join(this.cwd, n), dst = await target.join(target.cwd, n);
@@ -1771,17 +1856,18 @@ class SftpSession {
     this.kind = 'sftp'; this.id = uid(); this.host = host;
     this.title = `SFTP · ${host.label || host.address}`;
     this.el = h(`<div class="session"><div class="sftp"></div><div class="transfers"></div></div>`);
-    this.local = new FilePane(this, 'local');
+    this.local = WEB ? null : new FilePane(this, 'local');
     this.remote = new FilePane(this, 'remote');
     const wrap = $('.sftp', this.el);
-    wrap.append(this.local.el, h(`<div class="pane"><div class="pane-empty"><div class="spinner" style="width:30px;height:30px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite"></div><div>${esc(T('Connecting to {host} …', { host: host.address }))}</div></div></div>`));
+    if (this.local) wrap.append(this.local.el);
+    wrap.append(h(`<div class="pane"><div class="pane-empty"><div class="spinner" style="width:30px;height:30px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite"></div><div>${esc(T('Connecting to {host} …', { host: host.address }))}</div></div></div>`));
     this.unsub = api.on('sftp:progress', (tid, done, total) => this.progress(tid, done, total));
     this.xfers = new Map();
     addTab(this);
     this.open();
   }
   async open() {
-    this.local.init(await api.call('local:home'));
+    if (this.local) this.local.init(await api.call('local:home'));
     try {
       const { home } = await api.call('sftp:open', this.id, this.host.id || this.host);
       $('.sftp', this.el).lastElementChild.replaceWith(this.remote.el);
@@ -1810,6 +1896,32 @@ class SftpSession {
       setTimeout(() => row.remove(), 10000);
     }
   }
+  // Web-Version: Upload per HTTP (mit Fortschritt), Download als Browser-Download
+  webTransfer(dir, file, remotePath, name) {
+    const q = `sid=${encodeURIComponent(this.id)}&path=${encodeURIComponent(remotePath)}`;
+    if (dir === 'download') {
+      const a = h(`<a href="/web/download?${q}" download="${esc(name)}" style="display:none"></a>`);
+      document.body.append(a); a.click(); a.remove();
+      return Promise.resolve();
+    }
+    const tid = uid();
+    const row = h(`<div class="transfer"><span>${ICONS.upload}</span><span class="nm">${esc(name)}</span><span class="pct">0%</span><div class="bar"><i></i></div></div>`);
+    $('.transfers', this.el).prepend(row);
+    this.xfers.set(tid, row);
+    return new Promise((resolve) => {
+      const x = new XMLHttpRequest();
+      x.open('POST', `/web/upload?${q}`);
+      x.setRequestHeader('X-MrTerm', '1');
+      x.upload.onprogress = (e) => this.progress(tid, e.loaded, e.total);
+      x.onload = () => {
+        if (x.status < 300) { row.classList.add('done'); $('.bar i', row).style.width = '100%'; $('.pct', row).textContent = T('done'); setTimeout(() => row.remove(), 5000); }
+        else { row.classList.add('fail'); $('.pct', row).textContent = T('Error'); const m = (() => { try { return JSON.parse(x.responseText).error; } catch { return x.statusText; } })(); toast(`${name}: ${m}`, 'error'); setTimeout(() => row.remove(), 10000); }
+        resolve();
+      };
+      x.onerror = () => { row.classList.add('fail'); $('.pct', row).textContent = T('Error'); resolve(); };
+      x.send(file);
+    });
+  }
   progress(tid, done, total) {
     const row = this.xfers.get(tid); if (!row) return;
     const p = total ? Math.round((done / total) * 100) : 0;
@@ -2466,6 +2578,19 @@ document.addEventListener('keydown', (e) => {
   }
 });
 
+// Web-Version: Hostschlüssel bestätigen (in Electron zeigt der Hauptprozess dafür einen Systemdialog)
+api.on('hostkey:request', async (req) => {
+  const changed = !!req.previous;
+  const r = await modal({
+    title: changed ? T('Host key has changed!') : T('Unknown host'),
+    body: `<p style="margin-top:0">${esc(changed ? T('WARNING: The host key of {target} has changed. This may indicate a man-in-the-middle attack.', { target: req.host }) : T('The authenticity of {target} cannot be verified.', { target: req.host }))}</p>
+      <div class="mono" style="word-break:break-all;background:var(--panel);padding:8px 10px;border-radius:8px">${esc(req.fingerprint)}</div>
+      ${changed ? `<p>${esc(T('Previously stored:'))}</p><div class="mono" style="word-break:break-all;background:var(--panel);padding:8px 10px;border-radius:8px">${esc(req.previous)}</div>` : ''}`,
+    buttons: [{ label: T('Cancel'), value: false, cls: 'ghost' }, { label: changed ? T('Connect anyway & replace') : T('Trust & connect'), value: true, cls: changed ? 'danger' : 'primary' }],
+    noEnter: changed,
+  });
+  api.replySecret(req.reqId, r === true);
+});
 api.on('secret:request', async (req) => {
   const r = await modal({
     title: req.title || T('Authentication'),

src/renderer/index.html

@@ -5,6 +5,7 @@
   <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self' data:" />
   <title>MrTerm</title>
   <link rel="stylesheet" href="../../node_modules/@xterm/xterm/css/xterm.css" />
+  <link rel="stylesheet" href="app-themes.css" />
   <link rel="stylesheet" href="styles.css" />
 </head>
 <body>

src/renderer/styles.css

@@ -1,71 +1,12 @@
 :root {
-  --bg: #13151c;
-  --bg-2: #181b24;
-  --panel: #1c1f2a;
-  --card: #212533;
-  --card-hover: #282d3d;
-  --border: #2b3040;
-  --text: #e6e8ef;
-  --muted: #8b91a5;
-  --faint: #5d6377;
-  --accent: #6e7bff;
-  --accent-2: #8b95ff;
-  --green: #3ecf8e;
-  --red: #ff5f6d;
-  --orange: #ffb454;
-  --accent-3: #b36bff;
-  --chrome: #0f1117;
-  --chrome-line: #1f2330;
-  --hover: #1a1d27;
-  --nav-active: #1f2233;
-  --icon-bg: #2a2f45;
-  --folder: #6ea8ff;
-  --row-line: #1c1f29;
-  --overlay: #13151ce6;
-  --tint: 255 255 255;
-  --radius: 10px;
   --titlebar: 42px;
-  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, 'Noto Sans', sans-serif;
+  font-family: var(--font);
   font-size: 13px;
   color: var(--text);
 }
-/* ---------- App-Designs ---------- */
+[data-theme='light'] .card, [data-theme='xp'] .card, [data-theme='win11'] .card, [data-theme='macos'] .card { border-color: var(--border); }
-:root { --accent-2: color-mix(in srgb, var(--accent) 78%, white); }
+[data-theme='light'] .avatar .proto, [data-theme='xp'] .avatar .proto, [data-theme='win11'] .avatar .proto, [data-theme='macos'] .avatar .proto { background: var(--panel); }
-[data-theme='navy'] {
+[data-theme='light'] ::-webkit-scrollbar-thumb, [data-theme='xp'] ::-webkit-scrollbar-thumb, [data-theme='win11'] ::-webkit-scrollbar-thumb, [data-theme='macos'] ::-webkit-scrollbar-thumb { background: #c5cad8; background-clip: padding-box; }
-  --bg: #141729; --bg-2: #181c33; --panel: #1c2139; --card: #212742; --card-hover: #29304f; --border: #2e3657;
-  --text: #e8eaf6; --muted: #8e95b8; --faint: #5f6690; --accent: #21c7a8; --accent-3: #3a8dff;
-  --chrome: #0f1122; --chrome-line: #20264a; --hover: #1b2040; --nav-active: #232a52; --icon-bg: #2a3260; --row-line: #1c2140; --overlay: #141729e6;
-}
-[data-theme='nord'] {
-  --bg: #2e3440; --bg-2: #323846; --panel: #3b4252; --card: #3b4252; --card-hover: #434c5e; --border: #4c566a;
-  --text: #eceff4; --muted: #b5bdcc; --faint: #7b8598; --accent: #88c0d0; --accent-3: #81a1c1; --green: #a3be8c; --red: #bf616a; --orange: #d08770;
-  --chrome: #272c36; --chrome-line: #3b4252; --hover: #3b4252; --nav-active: #434c5e; --icon-bg: #4c566a; --folder: #81a1c1; --row-line: #3b4252; --overlay: #2e3440e6;
-}
-[data-theme='dracula'] {
-  --bg: #282a36; --bg-2: #2c2e3b; --panel: #313343; --card: #343746; --card-hover: #3e4153; --border: #44475a;
-  --text: #f8f8f2; --muted: #b3b6c8; --faint: #6272a4; --accent: #bd93f9; --accent-3: #ff79c6; --green: #50fa7b; --red: #ff5555; --orange: #ffb86c;
-  --chrome: #21222c; --chrome-line: #343746; --hover: #2f3140; --nav-active: #383a4c; --icon-bg: #44475a; --folder: #8be9fd; --row-line: #313343; --overlay: #282a36e6;
-}
-[data-theme='mocha'] {
-  --bg: #1e1e2e; --bg-2: #232334; --panel: #28283b; --card: #2a2a3d; --card-hover: #313244; --border: #3b3b52;
-  --text: #cdd6f4; --muted: #a6adc8; --faint: #6c7086; --accent: #cba6f7; --accent-3: #f5c2e7; --green: #a6e3a1; --red: #f38ba8; --orange: #fab387;
-  --chrome: #181825; --chrome-line: #292939; --hover: #252536; --nav-active: #313244; --icon-bg: #3a3a55; --folder: #89b4fa; --row-line: #28283b; --overlay: #1e1e2ee6;
-}
-[data-theme='forest'] {
-  --bg: #141a17; --bg-2: #18201c; --panel: #1c2621; --card: #1f2a24; --card-hover: #26342c; --border: #2d3d34;
-  --text: #e3ece6; --muted: #92a69a; --faint: #5e7266; --accent: #4cc38a; --accent-3: #b5e655; --folder: #7cc6a5;
-  --chrome: #0f1411; --chrome-line: #1f2a24; --hover: #1a231e; --nav-active: #213029; --icon-bg: #294034; --row-line: #1c2621; --overlay: #141a17e6;
-}
-[data-theme='light'] {
-  --bg: #f6f7fb; --bg-2: #eef0f6; --panel: #ffffff; --card: #ffffff; --card-hover: #f0f2fa; --border: #dde1ec;
-  --text: #1f2330; --muted: #5d6477; --faint: #9097aa; --accent: #5b67f1; --accent-3: #9b59f5; --green: #1f9d63; --red: #d63a4a; --orange: #c97a00;
-  --chrome: #e9ecf4; --chrome-line: #d8dce8; --hover: #dfe3ee; --nav-active: #d9ddf5; --icon-bg: #e6e9f7; --folder: #3d7de0; --row-line: #eceef5; --overlay: #f6f7fbe6;
-  --tint: 0 0 0;
-  --accent-2: color-mix(in srgb, var(--accent) 85%, black);
-}
-[data-theme='light'] .card { border-color: var(--border); }
-[data-theme='light'] .avatar .proto { background: var(--panel); }
-[data-theme='light'] ::-webkit-scrollbar-thumb { background: #c5cad8; background-clip: padding-box; }
 * { box-sizing: border-box; }
 html, body { margin: 0; height: 100%; background: var(--bg); overflow: hidden; }
 button { font: inherit; color: inherit; cursor: pointer; }
@@ -154,7 +95,7 @@ body.in-session #sidebar { display: none; }
 .search svg { color: var(--faint); }
 .btn { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); font-weight: 600; white-space: nowrap; }
 .btn:hover { background: var(--card-hover); }
-.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
+.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
 .btn.primary:hover { background: var(--accent-2); }
 .btn.danger { color: var(--red); }
 .btn.danger:hover { background: color-mix(in srgb, var(--red) 10%, transparent); }
@@ -221,7 +162,7 @@ body.in-session #sidebar { display: none; }
 .form h4 { margin: 20px 0 12px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--accent-2); }
 .seg { display: flex; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 3px; gap: 3px; margin-bottom: 14px; }
 .seg button { flex: 1; border: none; background: none; padding: 7px; border-radius: 6px; color: var(--muted); font-weight: 600; }
-.seg button.active { background: var(--accent); color: white; }
+.seg button.active { background: var(--accent); color: var(--on-accent); }
 .check { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; cursor: pointer; }
 .check input { accent-color: var(--accent); width: 16px; height: 16px; }
 .colors { display: flex; gap: 8px; flex-wrap: wrap; }
@@ -443,3 +384,28 @@ kbd { background: var(--card); border: 1px solid var(--border); border-bottom-wi
 .fw-hint b { color: var(--text); }
 .fw-hint p { margin: 4px 0 8px; color: var(--muted); }
 .fw-hint pre, .fw-pre { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin: 0 0 10px; color: var(--text); white-space: pre-wrap; user-select: text; }
+
+/* Design-Extras: XP-Titelleiste, Cyberpunk-Neon */
+[data-theme='xp'] #titlebar { background: linear-gradient(#0a5fdc, #0846b8 55%, #0a3f9f); color: #fff; }
+[data-theme='xp'] #titlebar .brand, [data-theme='xp'] #titlebar .win-ctrls button, [data-theme='xp'] #titlebar .tab:not(.active) { color: #fff; }
+[data-theme='xp'] #titlebar .tab.active { color: var(--text); }
+[data-theme='xp'] .btn.primary { background: linear-gradient(#3d86e8, #2159b8); border-color: #1b4a9a; }
+[data-theme='cyberpunk'] .btn.primary { clip-path: polygon(0 0, 100% 0, 100% 70%, calc(100% - 10px) 100%, 0 100%); text-transform: uppercase; letter-spacing: .5px; }
+[data-theme='cyberpunk'] #titlebar { border-bottom: 1px solid #fcee0a55; }
+[data-theme='cyberpunk'] .card:hover { box-shadow: inset 2px 0 0 var(--accent-3); }
+[data-theme='xp'] .brand-term, [data-theme='win11'] .brand-term, [data-theme='macos'] .brand-term { color: #14a37a; }
+/* macOS Liquid Glass */
+[data-theme='macos'] #main, [data-theme='macos'] .pane { background: transparent; }
+[data-theme='macos'] :is(#titlebar, #sidebar, .toolbar, .card, .settings-card, .modal, .drawer, .ctx, .palette, .search, .toast, .net-card, .findbar, .pane th, .tab.active, .btn, .seg, .field input, .field select, .field textarea) {
+  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
+}
+[data-theme='macos'] :is(.card, .settings-card, .modal, .drawer, .ctx, .palette, .toast, .net-card, .search) { border: 1px solid var(--border); box-shadow: var(--glass-edge); }
+[data-theme='macos'] #sidebar { border-right: 1px solid var(--chrome-line); box-shadow: inset -1px 0 0 rgba(255, 255, 255, .6); }
+[data-theme='macos'] #titlebar { border-bottom: 1px solid var(--chrome-line); }
+[data-theme='macos'] .btn { border-radius: 999px; border-color: rgba(255, 255, 255, .75); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 2px 8px rgba(30, 40, 80, .08); }
+[data-theme='macos'] .btn.primary { background: linear-gradient(rgba(40, 145, 255, .92), rgba(0, 110, 240, .92)); border-color: rgba(255, 255, 255, .45); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 4px 14px rgba(0, 122, 255, .3); }
+[data-theme='macos'] .modal-bg { -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
+[data-theme='macos'] .nav.active { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 2px 8px rgba(30, 40, 80, .08); }
+
+/* Web-Version (Browser): Desktop-Funktionen ausblenden */
+.web .win-ctrls, .web #lockBtn, .web .nav[data-view='vpns'], .web .nav[data-view='forwards'], .web #updateBadge { display: none !important; }

src/renderer/themes.js

@@ -29,6 +29,20 @@ TERM_THEMES.mocha = { name: 'Catppuccin Mocha', background: '#1e1e2e', foregroun
 TERM_THEMES.navy = { ...TERM_THEMES.mrterm, name: 'Navy', background: '#141729', cursor: '#21c7a8', cursorAccent: '#141729', selectionBackground: '#21c7a844', black: '#212742' };
 TERM_THEMES.forest = { ...TERM_THEMES.mrterm, name: 'Forest', background: '#141a17', foreground: '#e3ece6', cursor: '#4cc38a', cursorAccent: '#141a17', selectionBackground: '#4cc38a44', black: '#1f2a24' };
 
+// Terminal-Schemata zu den System-Designs
+TERM_THEMES.xp = { name: 'Windows XP (cmd.exe)', background: '#000000', foreground: '#c0c0c0', cursor: '#c0c0c0', cursorAccent: '#000000', selectionBackground: '#c0c0c066',
+  black: '#000000', red: '#800000', green: '#008000', yellow: '#808000', blue: '#000080', magenta: '#800080', cyan: '#008080', white: '#c0c0c0',
+  brightBlack: '#808080', brightRed: '#ff0000', brightGreen: '#00ff00', brightYellow: '#ffff00', brightBlue: '#0000ff', brightMagenta: '#ff00ff', brightCyan: '#00ffff', brightWhite: '#ffffff' };
+TERM_THEMES.campbell = { name: 'Windows 11 (Campbell)', background: '#0c0c0c', foreground: '#cccccc', cursor: '#ffffff', cursorAccent: '#0c0c0c', selectionBackground: '#ffffff40',
+  black: '#0c0c0c', red: '#c50f1f', green: '#13a10e', yellow: '#c19c00', blue: '#0037da', magenta: '#881798', cyan: '#3a96dd', white: '#cccccc',
+  brightBlack: '#767676', brightRed: '#e74856', brightGreen: '#16c60c', brightYellow: '#f9f1a5', brightBlue: '#3b78ff', brightMagenta: '#b4009e', brightCyan: '#61d6d6', brightWhite: '#f2f2f2' };
+TERM_THEMES.macos = { name: 'macOS Terminal', background: '#ffffff', foreground: '#1d1d1f', cursor: '#7f7f7f', cursorAccent: '#ffffff', selectionBackground: '#b4d7ff',
+  black: '#000000', red: '#c23621', green: '#25bc24', yellow: '#adad27', blue: '#492ee1', magenta: '#d338d3', cyan: '#33bbc8', white: '#cbcccd',
+  brightBlack: '#818383', brightRed: '#fc391f', brightGreen: '#31e722', brightYellow: '#eaec23', brightBlue: '#5833ff', brightMagenta: '#f935f8', brightCyan: '#14f0f0', brightWhite: '#e9ebeb' };
+TERM_THEMES.cyberpunk = { name: 'Cyberpunk 2077', background: '#0a0a0f', foreground: '#eafcff', cursor: '#fcee0a', cursorAccent: '#0a0a0f', selectionBackground: '#00f0ff44',
+  black: '#15151f', red: '#ff003c', green: '#00ff9f', yellow: '#fcee0a', blue: '#00b8ff', magenta: '#ff2bd6', cyan: '#00f0ff', white: '#d7e6ee',
+  brightBlack: '#5a7680', brightRed: '#ff4f70', brightGreen: '#5cffc0', brightYellow: '#fff45c', brightBlue: '#5cd3ff', brightMagenta: '#ff6be4', brightCyan: '#6bf7ff', brightWhite: '#ffffff' };
+
 // App-Designs: Vorschaufarben + passendes Terminal-Schema (für "Passend zum Design")
 window.APP_THEMES = {
   midnight: { name: 'Midnight', bg: '#13151c', side: '#0f1117', card: '#212533', accent: '#6e7bff', text: '#e6e8ef', term: 'mrterm' },
@@ -37,5 +51,9 @@ window.APP_THEMES = {
   dracula: { name: 'Dracula', bg: '#282a36', side: '#21222c', card: '#343746', accent: '#bd93f9', text: '#f8f8f2', term: 'dracula' },
   mocha: { name: 'Catppuccin', bg: '#1e1e2e', side: '#181825', card: '#2a2a3d', accent: '#cba6f7', text: '#cdd6f4', term: 'mocha' },
   forest: { name: 'Forest', bg: '#141a17', side: '#0f1411', card: '#1f2a24', accent: '#4cc38a', text: '#e3ece6', term: 'forest' },
-  light: { name: 'Light', bg: '#f6f7fb', side: '#e9ecf4', card: '#ffffff', accent: '#5b67f1', text: '#1f2330', term: 'light' },
+  light: { name: 'Light', bg: '#f6f7fb', side: '#e9ecf4', card: '#ffffff', accent: '#5b67f1', text: '#1f2330', term: 'light', light: true },
+  xp: { name: 'Windows XP', bg: '#ece9d8', side: '#0a5fdc', card: '#ffffff', accent: '#316ac5', text: '#000000', term: 'xp', light: true },
+  win11: { name: 'Windows 11', bg: '#f3f3f3', side: '#ebebeb', card: '#ffffff', accent: '#0067c0', text: '#1b1b1b', term: 'campbell', light: true },
+  macos: { name: 'macOS', bg: '#ffffff', side: '#e8e8ed', card: '#f5f5f7', accent: '#007aff', text: '#1d1d1f', term: 'macos', light: true },
+  cyberpunk: { name: 'Cyberpunk 2077', bg: '#0a0a0f', side: '#07070b', card: '#15151f', accent: '#fcee0a', text: '#eafcff', term: 'cyberpunk' },
 };

src/web/public/login.css

@@ -0,0 +1,16 @@
+* { box-sizing: border-box; }
+html, body { margin: 0; min-height: 100%; }
+body { background: var(--bg); color: var(--text); font-family: var(--font); display: grid; place-items: center; min-height: 100vh; padding: 16px; }
+.box { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 32px 28px 22px; text-align: center; box-shadow: 0 20px 60px #0006; }
+.logo { width: 72px; height: 72px; border-radius: 18px; }
+h1 { margin: 10px 0 4px; font-size: 26px; }
+h1 span { color: var(--green); }
+p { color: var(--muted); margin: 0 0 22px; font-size: 14px; }
+form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
+label span { display: block; font-size: 11px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
+input { width: 100%; background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; font: inherit; outline: none; }
+input:focus { border-color: var(--accent); }
+button { margin-top: 6px; background: var(--accent); color: var(--on-accent); border: 0; border-radius: 10px; padding: 12px; font: 600 15px var(--font); cursor: pointer; }
+button:disabled { opacity: .6; }
+.err { color: var(--red); font-size: 13px; }
+.ver { margin-top: 18px; color: var(--faint); font-size: 11px; }

src/web/public/login.html

@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>MrTerm</title>
+  <link rel="icon" href="/favicon.png" />
+  <link rel="stylesheet" href="/app/src/renderer/app-themes.css" />
+  <link rel="stylesheet" href="/web/login.css" />
+</head>
+<body>
+  <main class="box">
+    <img src="/favicon.png" alt="" class="logo" />
+    <h1>Mr<span>Term</span></h1>
+    <p id="intro"></p>
+    <form id="form" autocomplete="on">
+      <label><span data-t="Username">Username</span><input name="name" autocomplete="username" required autofocus /></label>
+      <label><span data-t="Password">Password</span><input name="password" type="password" autocomplete="current-password" required /></label>
+      <label id="repeatRow" hidden><span data-t="Repeat password">Repeat password</span><input name="repeat" type="password" autocomplete="new-password" /></label>
+      <div id="err" class="err" hidden></div>
+      <button id="submit" type="submit"></button>
+    </form>
+    <div class="ver" id="ver"></div>
+  </main>
+  <script src="/app/src/i18n.js"></script>
+  <script src="/web/login.js"></script>
+</body>
+</html>

src/web/public/login.js

@@ -0,0 +1,36 @@
+// Anmeldung bzw. Ersteinrichtung (Admin-Konto) der Web-Version
+(async () => {
+  'use strict';
+  I18N.setLanguage('auto', navigator.language);
+  const T = I18N.t;
+  const $ = (s) => document.querySelector(s);
+  document.querySelectorAll('[data-t]').forEach((e) => { e.textContent = T(e.dataset.t); });
+
+  const st = await fetch('/api/state').then((r) => r.json());
+  if (st.user) { location.href = '/app/src/renderer/index.html'; return; }
+  const setup = st.setup;
+  $('#ver').textContent = `MrTerm Web ${st.version}`;
+  $('#intro').textContent = setup ? T('Welcome! Create the administrator account for this MrTerm server.') : T('Sign in to your MrTerm server.');
+  $('#submit').textContent = setup ? T('Create account') : T('Sign in');
+  $('#repeatRow').hidden = !setup;
+  if (setup) $('[name=password]').autocomplete = 'new-password';
+
+  $('#form').onsubmit = async (e) => {
+    e.preventDefault();
+    const f = Object.fromEntries(new FormData(e.target));
+    const err = $('#err');
+    err.hidden = true;
+    if (setup && f.password !== f.repeat) { err.textContent = T('The passwords do not match.'); err.hidden = false; return; }
+    $('#submit').disabled = true;
+    try {
+      const r = await fetch(setup ? '/api/setup' : '/api/login', { method: 'POST', headers: { 'Content-Type': 'application/json', 'X-MrTerm': '1' }, body: JSON.stringify({ name: f.name, password: f.password }) });
+      const j = await r.json().catch(() => ({}));
+      if (!r.ok) throw new Error(j.error || r.statusText);
+      location.href = '/app/src/renderer/index.html';
+    } catch (ex) {
+      err.textContent = T(ex.message);
+      err.hidden = false;
+      $('#submit').disabled = false;
+    }
+  };
+})();

src/web/public/web-api.js

@@ -0,0 +1,109 @@
+// window.api für die Web-Version: gleiche Schnittstelle wie src/preload.js (Electron),
+// aber über einen WebSocket zum MrTerm-Web-Server. Dateidialoge, Zwischenablage und Links laufen im Browser.
+(() => {
+  'use strict';
+  const listeners = new Map();
+  const waits = new Map();
+  let ws, seq = 0, queue = [], retry = 0, banner;
+  const emit = (ch, args) => listeners.get(ch)?.forEach((fn) => { try { fn(...args); } catch (e) { console.error(e); } });
+
+  function showBanner(text) {
+    if (!document.body) return;
+    if (!banner) {
+      banner = document.createElement('div');
+      banner.style.cssText = 'position:fixed;left:50%;top:10px;transform:translateX(-50%);z-index:9999;background:var(--card,#222);color:var(--text,#eee);border:1px solid var(--border,#444);border-radius:10px;padding:8px 14px;font:13px system-ui;box-shadow:0 6px 24px #0006';
+      document.body.append(banner);
+    }
+    banner.textContent = text;
+    banner.hidden = !text;
+  }
+
+  function connect() {
+    ws = new WebSocket(`${location.protocol === 'https:' ? 'wss' : 'ws'}://${location.host}/ws`);
+    ws.onopen = () => { retry = 0; showBanner(''); for (const m of queue) ws.send(m); queue = []; };
+    ws.onmessage = (e) => {
+      const m = JSON.parse(e.data);
+      if (m.t === 'reply') {
+        const w = waits.get(m.id);
+        if (!w) return;
+        waits.delete(m.id);
+        m.ok ? w.resolve(m.v) : w.reject(new Error(m.v));
+      } else if (m.t === 'evt') emit(m.ch, m.args || []);
+    };
+    ws.onclose = (e) => {
+      for (const w of waits.values()) w.reject(new Error('Connection to the MrTerm server lost.'));
+      waits.clear();
+      if (e.code === 4001) { location.href = '/'; return; }
+      // Sitzung abgelaufen? Dann zur Anmeldung, sonst neu verbinden
+      fetch('/api/me', { headers: { 'X-MrTerm': '1' } }).then((r) => {
+        if (r.status === 401) { location.href = '/'; return; }
+        showBanner(window.I18N ? I18N.t('Connection lost – reconnecting …') : 'Connection lost – reconnecting …');
+        setTimeout(connect, Math.min(1000 * 2 ** retry++, 15000));
+      }).catch(() => { showBanner(window.I18N ? I18N.t('Connection lost – reconnecting …') : 'Connection lost – reconnecting …'); setTimeout(connect, Math.min(1000 * 2 ** retry++, 15000)); });
+    };
+  }
+  const post = (m) => { const s = JSON.stringify(m); if (ws.readyState === 1) ws.send(s); else queue.push(s); };
+  const remote = (ch, args) => new Promise((resolve, reject) => { const id = ++seq; waits.set(id, { resolve, reject }); post({ t: 'call', id, ch, args }); });
+
+  // Datei im Browser auswählen und als Text lesen
+  function pickFile(accept) {
+    return new Promise((resolve) => {
+      const inp = document.createElement('input');
+      inp.type = 'file';
+      if (accept) inp.accept = accept;
+      inp.style.display = 'none';
+      inp.onchange = async () => { const f = inp.files[0]; inp.remove(); resolve(f ? { name: f.name, content: await f.text() } : null); };
+      inp.addEventListener('cancel', () => { inp.remove(); resolve(null); });
+      document.body.append(inp);
+      inp.click();
+    });
+  }
+  function downloadText(name, text) {
+    const url = URL.createObjectURL(new Blob([text], { type: 'application/json' }));
+    const a = Object.assign(document.createElement('a'), { href: url, download: name });
+    document.body.append(a); a.click(); a.remove();
+    setTimeout(() => URL.revokeObjectURL(url), 1000);
+  }
+
+  // Kanäle, die im Browser selbst erledigt werden
+  const local = {
+    // Ohne HTTPS gibt es navigator.clipboard nicht: Kopieren per execCommand, Einfügen dann nur per Strg+V
+    'clipboard:write': (t) => {
+      if (navigator.clipboard && window.isSecureContext) return navigator.clipboard.writeText(String(t));
+      const ta = Object.assign(document.createElement('textarea'), { value: String(t) });
+      ta.style.cssText = 'position:fixed;opacity:0';
+      document.body.append(ta); ta.select(); document.execCommand('copy'); ta.remove();
+    },
+    'clipboard:read': () => {
+      if (navigator.clipboard && window.isSecureContext) return navigator.clipboard.readText();
+      throw new Error('Pasting from the menu needs HTTPS. Use Ctrl+Shift+V or Ctrl+V instead.');
+    },
+    'shell:open': (url) => { if (/^https?:\/\//i.test(url)) window.open(url, '_blank', 'noopener'); },
+    'vault:export': async () => { downloadText('mrterm-backup.json', JSON.stringify(await remote('vault:exportData', []), null, 2)); return 'mrterm-backup.json'; },
+    'vault:import': async () => { const f = await pickFile('.json,application/json'); if (!f) return false; return remote('vault:importData', [JSON.parse(f.content)]); },
+    'key:pickFile': async () => { const f = await pickFile(); return f ? { name: f.name, content: f.content, publicKey: '' } : null; },
+    'import:pickFile': async () => pickFile(),
+    'vault:importSshConfig': () => { throw new Error('Not available in the web version.'); },
+  };
+
+  window.api = {
+    platform: 'web',
+    call: (ch, ...args) => (local[ch] ? Promise.resolve().then(() => local[ch](...args)) : remote(ch, args)),
+    on(ch, fn) {
+      if (!listeners.has(ch)) listeners.set(ch, new Set());
+      listeners.get(ch).add(fn);
+      return () => listeners.get(ch).delete(fn);
+    },
+    win: { min() {}, max() {}, close() {} },
+    ssh: {
+      write: (id, d) => post({ t: 'send', ch: 'ssh:write', args: [id, d] }),
+      resize: (id, c, r) => post({ t: 'send', ch: 'ssh:resize', args: [id, c, r] }),
+      close: (id) => post({ t: 'send', ch: 'ssh:close', args: [id] }),
+    },
+    rdp: { bounds() {}, show() {}, hide() {}, focus() {}, close() {} },
+    replySecret: (reqId, v) => post({ t: 'send', ch: 'secret:reply', args: [reqId, v] }),
+    pairReply: (reqId, ok) => post({ t: 'send', ch: 'sync:pairReply', args: [reqId, ok] }),
+  };
+  document.documentElement.classList.add('web');
+  connect();
+})();

src/web/server.js

@@ -0,0 +1,376 @@
+// MrTerm Web: die Desktop-Oberfläche im Browser, selbst gehostet (Docker).
+// - Benutzerkonten; jeder Tresor ist mit einem eigenen Datenschlüssel (DEK) verschlüsselt,
+//   den nur das Login-Passwort des Benutzers entpackt (scrypt → AES-256-GCM).
+// - Oberfläche ↔ Server über WebSocket (/ws), gleiche Kanäle wie Electron/Android (src/core/backend.js).
+// - SFTP-Up-/Downloads über HTTP (/web/upload, /web/download).
+//
+// Umgebung: PORT (8080), DATA_DIR (/data), TRUST_PROXY=1 (X-Forwarded-Proto/-For auswerten, z. B. hinter Traefik)
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+const { WebSocketServer } = require('ws');
+const { Store } = require('../main/store');
+const { createBackend } = require('../core/backend');
+const i18n = require('../i18n');
+
+const ROOT = process.env.MRTERM_ROOT || path.resolve(__dirname, '..', '..');
+const DATA = path.resolve(process.env.DATA_DIR || path.join(ROOT, 'web-data'));
+const PORT = Number(process.env.PORT) || 8080;
+const TRUST_PROXY = process.env.TRUST_PROXY === '1';
+const VERSION = (() => { try { return JSON.parse(fs.readFileSync(path.join(ROOT, 'package.json'), 'utf8')).version; } catch { return '0.0.0'; } })();
+const SESSION_IDLE = 12 * 3600e3;
+const SESSION_MAX = 7 * 24 * 3600e3;
+const COOKIE = 'mrterm_sid';
+
+process.on('uncaughtException', (e) => console.error('Uncaught exception:', e));
+process.on('unhandledRejection', (e) => console.error('Unhandled rejection:', e));
+fs.mkdirSync(path.join(DATA, 'users'), { recursive: true, mode: 0o700 });
+
+// ============================================================ Krypto-Helfer
+const scrypt = (pw, salt, N = 2 ** 15) => new Promise((resolve, reject) =>
+  crypto.scrypt(String(pw), salt, 32, { N, r: 8, p: 1, maxmem: 256 * N * 8 }, (e, k) => (e ? reject(e) : resolve(k))));
+function box(key, plain) {
+  const iv = crypto.randomBytes(12);
+  const c = crypto.createCipheriv('aes-256-gcm', key, iv);
+  const ct = Buffer.concat([c.update(plain), c.final()]);
+  return { iv: iv.toString('base64'), tag: c.getAuthTag().toString('base64'), ct: ct.toString('base64') };
+}
+function unbox(key, b) {
+  const d = crypto.createDecipheriv('aes-256-gcm', key, Buffer.from(b.iv, 'base64'));
+  d.setAuthTag(Buffer.from(b.tag, 'base64'));
+  return Buffer.concat([d.update(Buffer.from(b.ct, 'base64')), d.final()]);
+}
+// Verschlüsselung des Tresors mit dem DEK (Schnittstelle wie Electrons safeStorage)
+const vaultCrypto = (dek) => ({
+  isEncryptionAvailable: () => true,
+  encryptString(s) {
+    const iv = crypto.randomBytes(12);
+    const c = crypto.createCipheriv('aes-256-gcm', dek, iv);
+    const ct = Buffer.concat([c.update(String(s), 'utf8'), c.final()]);
+    return Buffer.concat([iv, c.getAuthTag(), ct]);
+  },
+  decryptString(buf) {
+    const d = crypto.createDecipheriv('aes-256-gcm', dek, buf.subarray(0, 12));
+    d.setAuthTag(buf.subarray(12, 28));
+    return Buffer.concat([d.update(buf.subarray(28)), d.final()]).toString('utf8');
+  },
+});
+
+// ============================================================ Benutzer
+const USERS_FILE = path.join(DATA, 'users.json');
+let users = (() => { try { return JSON.parse(fs.readFileSync(USERS_FILE, 'utf8')).users || []; } catch { return []; } })();
+function saveUsers() {
+  fs.writeFileSync(USERS_FILE + '.tmp', JSON.stringify({ users }, null, 2), { mode: 0o600 });
+  fs.renameSync(USERS_FILE + '.tmp', USERS_FILE);
+}
+const validName = (n) => /^[A-Za-z0-9._@-]{1,64}$/.test(String(n || ''));
+const validPw = (p) => typeof p === 'string' && p.length >= 8 && p.length <= 1024;
+const publicUser = (u) => ({ id: u.id, name: u.name, admin: !!u.admin });
+
+async function createUser(name, password, admin) {
+  if (!validName(name)) throw new Error('Usernames may contain letters, digits and . _ @ - (max. 64).');
+  if (!validPw(password)) throw new Error('The password must be at least 8 characters long.');
+  if (users.some((u) => u.name.toLowerCase() === name.toLowerCase())) throw new Error('This username is already taken.');
+  const authSalt = crypto.randomBytes(16), kekSalt = crypto.randomBytes(16);
+  const dek = crypto.randomBytes(32);
+  const u = {
+    id: crypto.randomUUID(), name, admin: !!admin, createdAt: Date.now(),
+    auth: { salt: authSalt.toString('base64'), hash: (await scrypt(password, authSalt)).toString('base64') },
+    kek: { salt: kekSalt.toString('base64') },
+    dek: box(await scrypt(password, kekSalt), dek),
+  };
+  users.push(u);
+  saveUsers();
+  return u;
+}
+// Prüft das Passwort und liefert den entpackten DEK (oder null)
+async function verify(u, password) {
+  const hash = await scrypt(password, Buffer.from(u.auth.salt, 'base64'));
+  if (!crypto.timingSafeEqual(hash, Buffer.from(u.auth.hash, 'base64'))) return null;
+  try { return unbox(await scrypt(password, Buffer.from(u.kek.salt, 'base64')), u.dek); } catch { return null; }
+}
+async function setPassword(u, dek, password) {
+  if (!validPw(password)) throw new Error('The password must be at least 8 characters long.');
+  const authSalt = crypto.randomBytes(16), kekSalt = crypto.randomBytes(16);
+  u.auth = { salt: authSalt.toString('base64'), hash: (await scrypt(password, authSalt)).toString('base64') };
+  u.kek = { salt: kekSalt.toString('base64') };
+  u.dek = box(await scrypt(password, kekSalt), dek);
+  saveUsers();
+}
+
+// ============================================================ Sitzungen
+const sessions = new Map(); // token -> { userId, dek, created, last }
+function newSession(u, dek) {
+  const token = crypto.randomBytes(32).toString('base64url');
+  sessions.set(token, { userId: u.id, dek, created: Date.now(), last: Date.now() });
+  return token;
+}
+function sessionOf(req) {
+  const m = String(req.headers.cookie || '').match(new RegExp(`(?:^|;\\s*)${COOKIE}=([A-Za-z0-9_-]+)`));
+  const s = m && sessions.get(m[1]);
+  if (!s) return null;
+  const now = Date.now();
+  if (now - s.last > SESSION_IDLE || now - s.created > SESSION_MAX || !users.some((u) => u.id === s.userId)) { sessions.delete(m[1]); return null; }
+  s.last = now;
+  return { token: m[1], ...s, user: users.find((u) => u.id === s.userId) };
+}
+setInterval(() => { for (const [t, s] of sessions) if (Date.now() - s.last > SESSION_IDLE || Date.now() - s.created > SESSION_MAX) sessions.delete(t); }, 600e3).unref();
+
+const secure = (req) => req.socket.encrypted || (TRUST_PROXY && String(req.headers['x-forwarded-proto'] || '').split(',')[0].trim() === 'https');
+const cookie = (req, token, maxAge) => `${COOKIE}=${token}; Path=/; HttpOnly; SameSite=Strict; Max-Age=${maxAge}${secure(req) ? '; Secure' : ''}`;
+const clientIp = (req) => (TRUST_PROXY && String(req.headers['x-forwarded-for'] || '').split(',')[0].trim()) || req.socket.remoteAddress || '';
+
+// Anmeldeversuche begrenzen: 10 Fehlversuche je IP in 15 Minuten
+const failures = new Map();
+const blocked = (ip) => { const f = failures.get(ip); return f && f.n >= 10 && Date.now() - f.first < 900e3; };
+const fail = (ip) => { const f = failures.get(ip); if (!f || Date.now() - f.first > 900e3) failures.set(ip, { n: 1, first: Date.now() }); else f.n++; };
+
+// ============================================================ Laufzeit je Benutzer (Tresor + Backend)
+const runtimes = new Map(); // userId -> { store, be, sockets, timer }
+function runtimeFor(sess) {
+  let rt = runtimes.get(sess.userId);
+  if (rt) { clearTimeout(rt.timer); return rt; }
+  const dir = path.join(DATA, 'users', sess.userId);
+  fs.mkdirSync(dir, { recursive: true, mode: 0o700 });
+  const store = new Store({ dir, crypto: vaultCrypto(sess.dek) });
+  store.load();
+  const sockets = new Set();
+  const send = (ch, ...args) => { const msg = JSON.stringify({ t: 'evt', ch, args }); for (const ws of sockets) if (ws.readyState === 1) ws.send(msg); };
+  const be = createBackend({ store, send, platform: 'web', version: VERSION });
+  // Desktop-Funktionen, die es im Browser nicht gibt: neutrale Antworten, damit die Oberfläche nicht stolpert
+  be.handle('vpn:status', () => ({}));
+  be.handle('fw:active', () => []);
+  be.handle('rdp:detect', () => ({}));
+  be.handle('rdp:embedSupported', () => ({ ok: false, reason: 'web' }));
+  be.handle('update:check', () => ({ available: false }));
+  be.handle('sync:status', () => ({ enabled: false, running: false, peers: [], nearby: [], share: { keys: [], hosts: [], vpns: [] } }));
+  rt = { store, be, sockets, timer: null };
+  runtimes.set(sess.userId, rt);
+  return rt;
+}
+// Letzter Browser-Tab zu: SSH-Verbindungen nach kurzer Zeit schließen und den Tresor aus dem Speicher nehmen
+function release(userId) {
+  const rt = runtimes.get(userId);
+  if (!rt || rt.sockets.size) return;
+  rt.timer = setTimeout(() => { if (!rt.sockets.size) { rt.be.close(); runtimes.delete(userId); } }, 60e3);
+}
+function dropUser(userId) {
+  for (const [t, s] of sessions) if (s.userId === userId) sessions.delete(t);
+  const rt = runtimes.get(userId);
+  if (rt) { for (const ws of rt.sockets) ws.close(4001, 'signed out'); rt.be.close(); runtimes.delete(userId); }
+}
+
+// ============================================================ HTTP
+const MIME = { '.html': 'text/html; charset=utf-8', '.js': 'text/javascript; charset=utf-8', '.css': 'text/css; charset=utf-8', '.png': 'image/png', '.svg': 'image/svg+xml', '.json': 'application/json', '.ico': 'image/x-icon', '.woff2': 'font/woff2' };
+const CSP = "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self' data:; connect-src 'self'; frame-ancestors 'none'; base-uri 'none'; form-action 'self'";
+function headers(extra = {}) {
+  return { 'Content-Security-Policy': CSP, 'X-Content-Type-Options': 'nosniff', 'X-Frame-Options': 'DENY', 'Referrer-Policy': 'no-referrer', 'Cache-Control': 'no-store', ...extra };
+}
+const json = (res, code, obj, extra = {}) => { res.writeHead(code, headers({ 'Content-Type': 'application/json', ...extra })); res.end(JSON.stringify(obj)); };
+const redirect = (res, to) => { res.writeHead(302, headers({ Location: to })); res.end(); };
+
+// Freigegebene statische Dateien: URL-Präfix → Verzeichnis
+const STATIC = [
+  ['/app/src/renderer/', path.join(ROOT, 'src', 'renderer')],
+  ['/app/src/i18n.js', path.join(ROOT, 'src', 'i18n.js')],
+  ['/app/node_modules/@xterm/', path.join(ROOT, 'node_modules', '@xterm')],
+  ['/web/', path.join(ROOT, 'src', 'web', 'public')],
+];
+function staticFile(urlPath) {
+  for (const [prefix, dir] of STATIC) {
+    if (urlPath === prefix && !prefix.endsWith('/')) return dir;
+    if (!prefix.endsWith('/') || !urlPath.startsWith(prefix)) continue;
+    const file = path.resolve(dir, '.' + path.posix.normalize('/' + decodeURIComponent(urlPath.slice(prefix.length))));
+    if (!file.startsWith(dir + path.sep)) return null;
+    if (dir.endsWith('@xterm') && !/[\\/](lib|css)[\\/][^\\/]+$/.test(file)) return null;
+    if (dir.endsWith('renderer') && /\.(rdm|md)$/.test(file)) return null;
+    return file;
+  }
+  return null;
+}
+function serveFile(res, file, transform) {
+  fs.stat(file, (err, st) => {
+    if (err || !st.isFile()) return json(res, 404, { error: 'Not found' });
+    const type = MIME[path.extname(file)] || 'application/octet-stream';
+    const cache = type.startsWith('text/html') ? 'no-store' : 'private, max-age=300';
+    if (transform) {
+      const body = transform(fs.readFileSync(file, 'utf8'));
+      res.writeHead(200, headers({ 'Content-Type': type, 'Cache-Control': cache }));
+      return res.end(body);
+    }
+    res.writeHead(200, headers({ 'Content-Type': type, 'Content-Length': st.size, 'Cache-Control': cache }));
+    fs.createReadStream(file).pipe(res);
+  });
+}
+function readJson(req, limit = 64 * 1024) {
+  return new Promise((resolve, reject) => {
+    let size = 0; const parts = [];
+    req.on('data', (c) => { size += c.length; if (size > limit) { reject(new Error('Request too large')); req.destroy(); } else parts.push(c); });
+    req.on('end', () => { try { resolve(parts.length ? JSON.parse(Buffer.concat(parts).toString('utf8')) : {}); } catch { reject(new Error('Invalid JSON')); } });
+    req.on('error', reject);
+  });
+}
+
+const APP_URL = '/app/src/renderer/index.html';
+
+async function api(req, res, url, sess) {
+  const p = url.pathname;
+  // Schreibende Anfragen nur mit eigenem Header (Browser senden ihn nicht seitenübergreifend ohne CORS-Freigabe)
+  if (req.method === 'POST' && req.headers['x-mrterm'] !== '1') return json(res, 403, { error: 'Forbidden' });
+  if (p === '/api/state' && req.method === 'GET') return json(res, 200, { setup: !users.length, user: sess ? publicUser(sess.user) : null, version: VERSION });
+  if (p === '/api/setup' && req.method === 'POST') {
+    if (users.length) return json(res, 409, { error: 'Setup is already complete.' });
+    const b = await readJson(req);
+    const u = await createUser(b.name, b.password, true);
+    const dek = await verify(u, b.password);
+    return json(res, 200, { ok: true }, { 'Set-Cookie': cookie(req, newSession(u, dek), SESSION_MAX / 1000) });
+  }
+  if (p === '/api/login' && req.method === 'POST') {
+    const ip = clientIp(req);
+    if (blocked(ip)) return json(res, 429, { error: 'Too many failed attempts. Try again in 15 minutes.' });
+    const b = await readJson(req);
+    const u = users.find((x) => x.name.toLowerCase() === String(b.name || '').toLowerCase());
+    const dek = u ? await verify(u, String(b.password || '')) : (await scrypt('x', crypto.randomBytes(16)), null);
+    if (!dek) { fail(ip); return json(res, 401, { error: 'Wrong username or password.' }); }
+    failures.delete(ip);
+    return json(res, 200, { ok: true }, { 'Set-Cookie': cookie(req, newSession(u, dek), SESSION_MAX / 1000) });
+  }
+  if (!sess) return json(res, 401, { error: 'Not signed in' });
+  if (p === '/api/me') return json(res, 200, publicUser(sess.user));
+  if (p === '/api/logout' && req.method === 'POST') {
+    sessions.delete(sess.token);
+    return json(res, 200, { ok: true }, { 'Set-Cookie': cookie(req, '', 0) });
+  }
+  if (p === '/api/password' && req.method === 'POST') {
+    const b = await readJson(req);
+    if (!(await verify(sess.user, String(b.old || '')))) return json(res, 400, { error: 'The current password is wrong.' });
+    await setPassword(sess.user, sess.dek, b.password);
+    for (const [t, s] of sessions) if (s.userId === sess.userId && t !== sess.token) sessions.delete(t);
+    return json(res, 200, { ok: true });
+  }
+  if (p.startsWith('/api/users')) {
+    if (!sess.user.admin) return json(res, 403, { error: 'Administrators only.' });
+    if (p === '/api/users' && req.method === 'GET') return json(res, 200, { users: users.map(publicUser) });
+    if (p === '/api/users' && req.method === 'POST') {
+      const b = await readJson(req);
+      return json(res, 200, publicUser(await createUser(b.name, b.password, !!b.admin)));
+    }
+    if (p === '/api/users/delete' && req.method === 'POST') {
+      const b = await readJson(req);
+      const u = users.find((x) => x.id === b.id);
+      if (!u) return json(res, 404, { error: 'User not found.' });
+      if (u.id === sess.userId) return json(res, 400, { error: 'You cannot delete yourself.' });
+      if (u.admin && users.filter((x) => x.admin).length === 1) return json(res, 400, { error: 'The last administrator cannot be deleted.' });
+      dropUser(u.id);
+      users = users.filter((x) => x.id !== u.id);
+      saveUsers();
+      fs.rmSync(path.join(DATA, 'users', u.id), { recursive: true, force: true });
+      return json(res, 200, { ok: true });
+    }
+  }
+  return json(res, 404, { error: 'Not found' });
+}
+
+// SFTP-Dateien des angemeldeten Benutzers streamen
+function sftpFor(sess, url) {
+  const rt = runtimes.get(sess.userId);
+  const sid = url.searchParams.get('sid') || '';
+  const file = url.searchParams.get('path') || '';
+  if (!rt || !file.startsWith('/')) throw new Error('Invalid request');
+  return { sftp: rt.be.ssh.sftpOf(sid), file };
+}
+function download(req, res, sess, url) {
+  let t;
+  try { t = sftpFor(sess, url); } catch (e) { return json(res, 400, { error: e.message }); }
+  t.sftp.stat(t.file, (err, st) => {
+    if (err) return json(res, 404, { error: err.message });
+    const name = path.posix.basename(t.file);
+    res.writeHead(200, headers({
+      'Content-Type': 'application/octet-stream', 'Content-Length': st.size, 'Cache-Control': 'no-store',
+      'Content-Disposition': `attachment; filename="${name.replace(/[^\x20-\x7e]|["\\]/g, '_')}"; filename*=UTF-8''${encodeURIComponent(name)}`,
+    }));
+    const rs = t.sftp.createReadStream(t.file);
+    rs.on('error', () => res.destroy());
+    rs.pipe(res);
+  });
+}
+function upload(req, res, sess, url) {
+  let t;
+  try { t = sftpFor(sess, url); } catch (e) { return json(res, 400, { error: e.message }); }
+  const ws = t.sftp.createWriteStream(t.file);
+  let done = false;
+  const finish = (err) => { if (done) return; done = true; err ? json(res, 500, { error: err.message }) : json(res, 200, { ok: true }); };
+  ws.on('error', finish);
+  ws.on('close', () => finish());
+  req.on('error', finish);
+  req.pipe(ws);
+}
+
+const server = http.createServer(async (req, res) => {
+  try {
+    const url = new URL(req.url, 'http://x');
+    const p = url.pathname;
+    const sess = sessionOf(req);
+    if (p === '/healthz') return json(res, 200, { ok: true });
+    if (p.startsWith('/api/')) return await api(req, res, url, sess);
+    if (p === '/web/download' && req.method === 'GET') return sess ? download(req, res, sess, url) : json(res, 401, { error: 'Not signed in' });
+    if (p === '/web/upload' && req.method === 'POST') {
+      if (!sess) return json(res, 401, { error: 'Not signed in' });
+      if (req.headers['x-mrterm'] !== '1') return json(res, 403, { error: 'Forbidden' });
+      return upload(req, res, sess, url);
+    }
+    if (req.method !== 'GET' && req.method !== 'HEAD') return json(res, 405, { error: 'Method not allowed' });
+    if (p === '/' || p === '/login') return sess && p === '/' ? redirect(res, APP_URL) : serveFile(res, path.join(ROOT, 'src', 'web', 'public', 'login.html'));
+    if (p === '/favicon.ico' || p === '/favicon.png') return serveFile(res, path.join(ROOT, 'src', 'renderer', 'logo.png'));
+    if (p === APP_URL) {
+      if (!sess) return redirect(res, '/');
+      // Browser-Anbindung (window.api) vor den übrigen Skripten laden
+      return serveFile(res, staticFile(p), (html) => html.replace('<script ', '<script src="/web/web-api.js"></script>\n  <script '));
+    }
+    const file = staticFile(p);
+    if (!file) return json(res, 404, { error: 'Not found' });
+    // Nur die Anmeldeseite und ihre Dateien sind ohne Sitzung erreichbar
+    const PUBLIC = ['/web/login.js', '/web/login.css', '/app/src/i18n.js', '/app/src/renderer/app-themes.css', '/app/src/renderer/logo.png'];
+    if (!sess && !PUBLIC.includes(p)) return json(res, 401, { error: 'Not signed in' });
+    return serveFile(res, file);
+  } catch (e) {
+    console.error(e);
+    if (!res.headersSent) json(res, 500, { error: e.message || 'Server error' });
+  }
+});
+
+// ============================================================ WebSocket
+const wss = new WebSocketServer({ noServer: true, maxPayload: 8 * 1024 * 1024 });
+server.on('upgrade', (req, socket, head) => {
+  const url = new URL(req.url, 'http://x');
+  const sess = sessionOf(req);
+  // Nur Verbindungen von der eigenen Seite (Schutz vor Cross-Site-WebSocket-Hijacking)
+  const origin = req.headers.origin ? new URL(req.headers.origin).host : '';
+  const host = (TRUST_PROXY && req.headers['x-forwarded-host']) || req.headers.host;
+  if (url.pathname !== '/ws' || !sess || origin !== host) { socket.write('HTTP/1.1 401 Unauthorized\r\n\r\n'); return socket.destroy(); }
+  wss.handleUpgrade(req, socket, head, (ws) => {
+    const rt = runtimeFor(sess);
+    rt.sockets.add(ws);
+    const lang = String(req.headers['accept-language'] || 'en').split(',')[0];
+    ws.on('message', async (raw) => {
+      let m;
+      try { m = JSON.parse(raw.toString('utf8')); } catch { return; }
+      if (!sessions.has(sess.token)) return ws.close(4001, 'signed out');
+      if (m.t === 'send') return rt.be.notify(String(m.ch), Array.isArray(m.args) ? m.args : []);
+      if (m.t !== 'call') return;
+      try {
+        i18n.setLanguage(rt.store.get().settings.language, lang);
+        const v = await rt.be.call(String(m.ch), Array.isArray(m.args) ? m.args : []);
+        ws.send(JSON.stringify({ t: 'reply', id: m.id, ok: true, v: v === undefined ? null : v }));
+      } catch (e) {
+        if (ws.readyState === 1) ws.send(JSON.stringify({ t: 'reply', id: m.id, ok: false, v: e?.message || String(e) }));
+      }
+    });
+    ws.on('close', () => { rt.sockets.delete(ws); release(sess.userId); });
+    ws.send(JSON.stringify({ t: 'hello', user: publicUser(sess.user), version: VERSION }));
+  });
+});
+
+server.on('error', (e) => { console.error(`Cannot listen on port ${PORT}: ${e.message}`); process.exit(1); });
+server.listen(PORT, () => console.log(`MrTerm Web ${VERSION} on port ${PORT} (data: ${DATA})${users.length ? '' : ' – open it in the browser to create the admin account'}`));