commit e3f80c058f375ba5f5d34a4e72729d345742bc66
Author: Niko Marmeladkov <niko@n1kt.ru>
Date:   Mon Oct 5 16:18:00 2026 +0300

    NikoGPT Android 1.0.0: open-source WebView client for chat.n1ko.dev
    
    - Android 10+ (minSdk 29), target/compile SDK 35
    - chat.n1ko.dev only; other links open in the system browser
    - system file picker for attachments, DownloadManager for files
    - TLS never bypassed, no cleartext, no analytics
    - pull-to-refresh, back navigation, progress and retry screen

diff --git a/.forgejo/workflows/build.yml b/.forgejo/workflows/build.yml
new file mode 100644
index 0000000..36d73ba
--- /dev/null
+++ b/.forgejo/workflows/build.yml
@@ -0,0 +1,22 @@
+name: build
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+jobs:
+  apk:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: "17"
+      - uses: android-actions/setup-android@v3
+      - name: Build debug APK
+        run: ./gradlew --no-daemon assembleDebug
+      - name: Upload APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: nikogpt-android-debug
+          path: app/build/outputs/apk/debug/app-debug.apk
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9d2fc3f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,11 @@
+.gradle/
+build/
+local.properties
+*.iml
+.idea/
+.DS_Store
+captures/
+.externalNativeBuild/
+.cxx/
+*.keystore
+*.jks
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..420357b
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Niko Marmeladkov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..265c614
--- /dev/null
+++ b/README.md
@@ -0,0 +1,60 @@
+# NikoGPT for Android
+
+Open-source Android client for the NikoGPT web chat
+([chat.n1ko.dev](https://chat.n1ko.dev)) — a thin, auditable WebView shell
+around the same web interface that runs in the browser. No analytics, no
+trackers, no third-party SDKs: the whole app is one activity and a handful of
+resources.
+
+- **Android 10+** (`minSdk 29`), targets Android 15.
+- **Everything the web app can do**: conversations, attachments (system file
+  picker), images, generated files, settings, themes.
+- Downloads go through Android's `DownloadManager` (with your session
+  cookies), links to other sites open in the system browser.
+- **Open in the browser only**: `chat.n1ko.dev` loads inside; anything else
+  leaves the app.
+- TLS errors are never bypassed, no cleartext traffic, no backup.
+- Day/night theme follows the system; the page keeps its own theme setting.
+- Back gesture navigates the chat history, pull-to-refresh reloads.
+
+## Install
+
+Download the APK from the [releases page](../../releases) and open it on the
+phone (allow installing apps from this source when Android asks). The APK is
+debug-signed for now, so Android may show a warning.
+
+## Build
+
+Requirements: JDK 17, Android SDK (platform 35, build-tools 35.0.0).
+
+```bash
+./gradlew assembleDebug     # app/build/outputs/apk/debug/app-debug.apk
+./gradlew assembleRelease   # unsigned; sign it yourself
+```
+
+Or just open the project in Android Studio.
+
+### Release signing
+
+Create a keystore and export it as Gradle properties or use
+`apksigner` on the release output:
+
+```bash
+keytool -genkeypair -v -keystore nikogpt.jks -alias nikogpt \
+  -keyalg RSA -keysize 2048 -validity 10000
+apksigner sign --ks nikogpt.jks --out nikogpt-release.apk \
+  app/build/outputs/apk/release/app-release-unsigned.apk
+```
+
+## Structure
+
+| Path | Purpose |
+|---|---|
+| `app/src/main/java/dev/n1ko/nikogpt/MainActivity.kt` | the whole app: WebView setup, file chooser, downloads, back handling |
+| `app/src/main/res/layout/activity_main.xml` | WebView + progress bar + retry screen |
+| `.forgejo/workflows/build.yml` | CI: builds the APK on tags |
+
+## License
+
+MIT — see [LICENSE](LICENSE). The Tabler-based icons used by the web chat come
+from [f.n1ko.dev/assets/ui](https://f.n1ko.dev/assets/ui) (MIT).
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
new file mode 100644
index 0000000..1e1fc4f
--- /dev/null
+++ b/app/build.gradle.kts
@@ -0,0 +1,49 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    namespace = "dev.n1ko.nikogpt"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "dev.n1ko.nikogpt"
+        minSdk = 29 // Android 10
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0.0"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro",
+            )
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    buildFeatures {
+        buildConfig = true
+    }
+}
+
+dependencies {
+    implementation("androidx.core:core-ktx:1.15.0")
+    implementation("androidx.appcompat:appcompat:1.7.0")
+    implementation("androidx.activity:activity-ktx:1.9.3")
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.1.0")
+    implementation("androidx.webkit:webkit:1.12.1")
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..a2778b5
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,4 @@
+# Keep the WebView bridge classes if @JavascriptInterface is ever added.
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface <methods>;
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..b76d809
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:usesCleartextTraffic="false"
+        android:theme="@style/Theme.NikoGPT">
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:configChanges="orientation|screenSize|screenLayout|keyboardHidden|uiMode"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
diff --git a/app/src/main/java/dev/n1ko/nikogpt/MainActivity.kt b/app/src/main/java/dev/n1ko/nikogpt/MainActivity.kt
new file mode 100644
index 0000000..44a4b49
--- /dev/null
+++ b/app/src/main/java/dev/n1ko/nikogpt/MainActivity.kt
@@ -0,0 +1,219 @@
+package dev.n1ko.nikogpt
+
+import android.annotation.SuppressLint
+import android.app.DownloadManager
+import android.content.ActivityNotFoundException
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.net.http.SslError
+import android.os.Bundle
+import android.os.Environment
+import android.view.View
+import android.webkit.CookieManager
+import android.webkit.DownloadListener
+import android.webkit.SslErrorHandler
+import android.webkit.URLUtil
+import android.webkit.ValueCallback
+import android.webkit.WebChromeClient
+import android.webkit.WebResourceError
+import android.webkit.WebResourceRequest
+import android.webkit.WebSettings
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import android.widget.Button
+import android.widget.LinearLayout
+import android.widget.ProgressBar
+import android.widget.TextView
+import android.widget.Toast
+import androidx.activity.OnBackPressedCallback
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.updatePadding
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+
+/**
+ * The whole app: a thin, open-source WebView around the NikoGPT web chat.
+ *
+ * Only chat.n1ko.dev is loaded inside; every other link opens in the system
+ * browser. File attachments go through the system document picker, downloads
+ * through DownloadManager. TLS errors are never bypassed.
+ */
+class MainActivity : AppCompatActivity() {
+
+    companion object {
+        private const val START_URL = "https://chat.n1ko.dev/"
+        private const val HOST = "chat.n1ko.dev"
+        private const val UA_SUFFIX = " NikoGPT-Android/1.0"
+    }
+
+    private lateinit var webView: WebView
+    private lateinit var refresh: SwipeRefreshLayout
+    private lateinit var progress: ProgressBar
+    private lateinit var errorBox: LinearLayout
+    private lateinit var errorText: TextView
+
+    private var fileCallback: ValueCallback<Array<Uri>>? = null
+    private val filePicker: ActivityResultLauncher<Array<String>> =
+        registerForActivityResult(ActivityResultContracts.OpenMultipleDocuments()) { uris ->
+            fileCallback?.onReceiveValue(uris?.toTypedArray() ?: arrayOf())
+            fileCallback = null
+        }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+        setContentView(R.layout.activity_main)
+
+        webView = findViewById(R.id.webview)
+        refresh = findViewById(R.id.refresh)
+        progress = findViewById(R.id.progress)
+        errorBox = findViewById(R.id.error_box)
+        errorText = findViewById(R.id.error_text)
+        findViewById<Button>(R.id.error_retry).setOnClickListener {
+            errorBox.visibility = View.GONE
+            webView.reload()
+        }
+
+        // Keep the page between the status/navigation bars and above the IME.
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.root)) { view, insets ->
+            val bars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            val ime = insets.getInsets(WindowInsetsCompat.Type.ime())
+            view.updatePadding(
+                left = bars.left,
+                top = bars.top,
+                right = bars.right,
+                bottom = maxOf(bars.bottom, ime.bottom),
+            )
+            WindowInsetsCompat.CONSUMED
+        }
+
+        with(webView.settings) {
+            javaScriptEnabled = true
+            domStorageEnabled = true
+            databaseEnabled = true
+            mediaPlaybackRequiresUserGesture = false
+            allowFileAccess = false
+            allowContentAccess = false
+            mixedContentMode = WebSettings.MIXED_CONTENT_NEVER_ALLOW
+            userAgentString = userAgentString + UA_SUFFIX
+            setSupportMultipleWindows(false)
+        }
+        CookieManager.getInstance().setAcceptCookie(true)
+        CookieManager.getInstance().setAcceptThirdPartyCookies(webView, false)
+        WebView.setWebContentsDebuggingEnabled(BuildConfig.DEBUG)
+
+        webView.webViewClient = object : WebViewClient() {
+            override fun shouldOverrideUrlLoading(view: WebView, request: WebResourceRequest): Boolean {
+                val url = request.url
+                if (url.host == HOST) return false
+                openExternally(url)
+                return true
+            }
+
+            override fun onReceivedError(view: WebView, request: WebResourceRequest, error: WebResourceError) {
+                if (request.isForMainFrame) {
+                    errorText.text = getString(R.string.load_error, error.description)
+                    errorBox.visibility = View.VISIBLE
+                }
+            }
+
+            override fun onReceivedSslError(view: WebView, handler: SslErrorHandler, error: SslError) {
+                // Never bypass TLS problems; show the error instead.
+                handler.cancel()
+                errorText.text = getString(R.string.load_error, error.url ?: "")
+                errorBox.visibility = View.VISIBLE
+            }
+
+            override fun onPageFinished(view: WebView, url: String) {
+                refresh.isRefreshing = false
+                progress.visibility = View.GONE
+            }
+        }
+
+        webView.webChromeClient = object : WebChromeClient() {
+            override fun onProgressChanged(view: WebView, newProgress: Int) {
+                progress.visibility = if (newProgress in 1..99) View.VISIBLE else View.GONE
+                progress.progress = newProgress
+            }
+
+            override fun onShowFileChooser(
+                view: WebView,
+                callback: ValueCallback<Array<Uri>>,
+                params: WebChromeClient.FileChooserParams,
+            ): Boolean {
+                fileCallback?.onReceiveValue(null)
+                fileCallback = callback
+                return try {
+                    filePicker.launch(arrayOf("*/*"))
+                    true
+                } catch (e: ActivityNotFoundException) {
+                    fileCallback = null
+                    false
+                }
+            }
+        }
+
+        webView.setDownloadListener(DownloadListener { url, userAgent, contentDisposition, mimeType, _ ->
+            download(url, userAgent, contentDisposition, mimeType)
+        })
+
+        refresh.setOnRefreshListener { webView.reload() }
+
+        onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {
+            override fun handleOnBackPressed() {
+                if (webView.canGoBack()) webView.goBack() else finish()
+            }
+        })
+
+        if (savedInstanceState == null) {
+            webView.loadUrl(START_URL)
+        } else {
+            webView.restoreState(savedInstanceState)
+        }
+    }
+
+    private fun openExternally(uri: Uri) {
+        try {
+            startActivity(Intent(Intent.ACTION_VIEW, uri).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
+        } catch (e: ActivityNotFoundException) {
+            Toast.makeText(this, R.string.no_app, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    private fun download(url: String, userAgent: String?, contentDisposition: String?, mimeType: String?) {
+        try {
+            val request = DownloadManager.Request(Uri.parse(url)).apply {
+                setMimeType(mimeType)
+                addRequestHeader("User-Agent", userAgent)
+                CookieManager.getInstance().getCookie(url)?.let { addRequestHeader("Cookie", it) }
+                setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED)
+                setDestinationInExternalPublicDir(
+                    Environment.DIRECTORY_DOWNLOADS,
+                    URLUtil.guessFileName(url, contentDisposition, mimeType),
+                )
+            }
+            (getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager).enqueue(request)
+            Toast.makeText(this, R.string.download_started, Toast.LENGTH_SHORT).show()
+        } catch (e: Exception) {
+            Toast.makeText(this, R.string.download_failed, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        webView.saveState(outState)
+    }
+
+    override fun onDestroy() {
+        fileCallback?.onReceiveValue(null)
+        fileCallback = null
+        webView.destroy()
+        super.onDestroy()
+    }
+}
diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml
new file mode 100644
index 0000000..babd4c1
--- /dev/null
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <group
+        android:scaleX="2.2"
+        android:scaleY="2.2"
+        android:translateX="27"
+        android:translateY="27">
+        <path
+            android:fillColor="#ffffff"
+            android:pathData="M16 19a1 1 0 0 1 0 -2a1 1 0 0 0 1 -1c0 -1.333 2 -1.333 2 0a1 1 0 0 0 1 1c1.333 0 1.333 2 0 2a1 1 0 0 0 -1 1c0 1.333 -2 1.333 -2 0a1 1 0 0 0 -1 -1" />
+        <path
+            android:fillColor="#ffffff"
+            android:pathData="M3 11a5 5 0 0 0 5 -5c0 -1.333 2 -1.333 2 0a5 5 0 0 0 5 5c1.333 0 1.333 2 0 2a5 5 0 0 0 -5 5a1 1 0 0 1 -2 0a5 5 0 0 0 -5 -5c-1.333 0 -1.333 -2 0 -2" />
+        <path
+            android:fillColor="#ffffff"
+            android:pathData="M16 7a1 1 0 0 1 0 -2a1 1 0 0 0 1 -1c0 -1.333 2 -1.333 2 0a1 1 0 0 0 1 1c1.333 0 1.333 2 0 2a1 1 0 0 0 -1 1c0 1.333 -2 1.333 -2 0a1 1 0 0 0 -1 -1" />
+    </group>
+</vector>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..1a755df
--- /dev/null
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/refresh"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:id="@+id/root"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <WebView
+            android:id="@+id/webview"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+        <ProgressBar
+            android:id="@+id/progress"
+            style="?android:attr/progressBarStyleHorizontal"
+            android:layout_width="match_parent"
+            android:layout_height="3dp"
+            android:layout_gravity="top"
+            android:indeterminate="false"
+            android:max="100" />
+
+        <LinearLayout
+            android:id="@+id/error_box"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="?android:attr/colorBackground"
+            android:orientation="vertical"
+            android:gravity="center"
+            android:padding="32dp"
+            android:visibility="gone">
+
+            <TextView
+                android:id="@+id/error_text"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:textAppearance="?android:attr/textAppearanceMedium" />
+
+            <Button
+                android:id="@+id/error_retry"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:text="@string/retry" />
+        </LinearLayout>
+    </FrameLayout>
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..a8a8fa5
--- /dev/null
+++ b/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="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..a8a8fa5
--- /dev/null
+++ b/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="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
new file mode 100644
index 0000000..b891836
--- /dev/null
+++ b/app/src/main/res/values-night/colors.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="window_background">#212121</color>
+</resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..ec3fa64
--- /dev/null
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#212121</color>
+    <color name="window_background">#ffffff</color>
+</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..f0db285
--- /dev/null
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">NikoGPT</string>
+    <string name="retry">Повторить</string>
+    <string name="load_error">Не удалось загрузить chat.n1ko.dev\n\n%1$s</string>
+    <string name="no_app">Нет приложения, которое может открыть эту ссылку</string>
+    <string name="download_started">Загрузка началась</string>
+    <string name="download_failed">Не удалось начать загрузку</string>
+</resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
new file mode 100644
index 0000000..e9abea7
--- /dev/null
+++ b/app/src/main/res/values/themes.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.NikoGPT" parent="Theme.AppCompat.DayNight.NoActionBar">
+        <item name="android:windowBackground">@color/window_background</item>
+    </style>
+</resources>
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 0000000..1020b25
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,4 @@
+plugins {
+    id("com.android.application") version "8.7.3" apply false
+    id("org.jetbrains.kotlin.android") version "2.1.0" apply false
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..3f6f2ce
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,6 @@
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+org.gradle.parallel=true
+org.gradle.caching=true
+android.useAndroidX=true
+android.nonTransitiveRClass=true
+kotlin.code.style=official
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..a4b76b9
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..e2847c8
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..f5feea6
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,252 @@
+#!/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 "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$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 "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# 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, 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" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..9b42019
--- /dev/null
+++ b/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=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+: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
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..9272daf
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,18 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "NikoGPT"
+include(":app")