feat:gen-xcode-proj

---------

Co-authored-by: intelligence <intelligence@debian.local>
Reviewed-on: #1

.gitea/workflows/android.yml

@@ -1,8 +1,6 @@
 name: Android
 
 on:
-  push:
-  pull_request:
   release:
     types: [published]
   workflow_dispatch:
@@ -22,16 +20,11 @@ jobs:
       - uses: android-actions/setup-android@v3
       # Gitea's act resolver cannot peel the annotated v4 tag alias.
       - uses: gradle/actions/setup-gradle@ed408507eac070d1f99cc633dbcf757c94c7933a # v4.4.3
-        with:
-          cache-read-only: ${{ gitea.event_name == 'pull_request' }}
       - name: Install Android SDK packages
         run: sdkmanager "platforms;android-35" "build-tools;35.0.0"
       - name: Lint and test
         working-directory: android
         run: ./gradlew --no-daemon lintDebug testDebugUnitTest
-      - name: Build debug APK
-        working-directory: android
-        run: ./gradlew --no-daemon assembleDebug
       - name: Build signed release APK
         working-directory: android
         env:
@@ -52,12 +45,13 @@ jobs:
         working-directory: android
         run: |
           mkdir -p ../artifacts
-          cp app/build/outputs/apk/debug/app-debug.apk ../artifacts/transui-android-debug.apk
           if [ -f app/build/outputs/apk/release/app-release.apk ]; then
             cp app/build/outputs/apk/release/app-release.apk ../artifacts/transui-android-release.apk
+            cd ../artifacts
+            sha256sum ./*.apk > SHA256SUMS-android
+          else
+            echo "No release APK to publish"
           fi
-          cd ../artifacts
-          sha256sum ./*.apk > SHA256SUMS-android
       - name: Attach APKs to the Gitea release
         if: gitea.event_name == 'release'
         env:
@@ -72,4 +66,4 @@ jobs:
         with:
           name: transui-android
           path: artifacts/
-          if-no-files-found: error
+          if-no-files-found: warn

.gitignore

@@ -4,3 +4,4 @@
 /android/build/
 /android/local.properties
 /android/app/build/
+.DS_Store

AGENTS.md

@@ -0,0 +1,26 @@
+# Transui design
+
+- Linux is a GTK3 desktop recorder. It supports hosted transcription with an optional local fallback and can type at the cursor or copy to the clipboard.
+- Android is remote-only. It provides an Android `RecognitionService`, a voice-only input method, and a floating recognition activity. Do not add a local llama.cpp path to Android.
+- Both clients call OpenAI-compatible `/v1/audio/transcriptions` endpoints and clean only the Qwen3-ASR `language …<astext>` or `language …<asr_text>` prefix.
+- The Android voice UI is an opaque, compact system surface. Teal is the recording signal. `PushToTalkButton` draws the Apps and Stop Circle glyphs with Canvas because the target device drops `ImageButton` image layers. Keep the glyphs drawn above the button background.
+
+## llama.cpp local endpoint
+
+The Linux local fallback begins with this multipart request. `response_format=json`
+is required; `prompt` is optional and may request transcription or translation.
+
+```sh
+curl -s -X POST -F response_format=json http://localhost:8080/v1/audio/transcriptions \
+  -F file="@test.mp3" \
+  -F 'prompt=Transcribe the following speech segment in English, and translate them into chinese.'
+```
+
+llama.cpp may return an event envelope instead of a bare OpenAI response:
+
+```json
+{"type":"transcript.text.done","text":"这是个测试。你能听到什么？我希望这很好。","usage":{"type":"tokens","input_tokens":241,"output_tokens":516,"total_tokens":757,"input_tokens_details":{"cached_tokens":0}}}
+```
+
+Use `text` as the transcript. Accept `transcript.text.done`; do not require a
+bare `{ "text": "…" }` response.

README.md

@@ -1,7 +1,8 @@
 # Transui
 
 A compact GTK3 desktop transcription tool for OpenAI-compatible and llama.cpp
-`/v1/audio/transcriptions` endpoints.
+`/v1/audio/transcriptions` endpoints. It also includes a remote-only Android
+speech-recognition provider and voice input method.
 
 ## Dependencies
 
@@ -13,11 +14,6 @@ sudo apt install cmake g++ pkg-config libgtk-3-dev libcurl4-openssl-dev \
   libjson-glib-dev wtype xdotool
 ```
 
-`wtype` is used on Wayland and `xdotool` on X11. They are runtime tools, so
-you only need the one matching your session. API keys are saved in the
-freedesktop Secret Service (GNOME Keyring, KWallet Secret Service, and so on),
-not in the settings file.
-
 ## Build
 
 ```sh
@@ -26,6 +22,14 @@ cmake --build build
 sudo cmake --install build
 ```
 
+Android release APKs build in Gitea CI. To run local Android checks, configure
+the Android SDK and run:
+
+```sh
+cd android
+./gradlew lintDebug lintRelease testDebugUnitTest
+```
+
 ## Commands
 
 ```sh
@@ -33,15 +37,3 @@ transui settings    # configure endpoints, prompt, and destination
 transui record      # open the record window
 transui             # same as record
 ```
-
-Bind `transui record` to a shortcut in your desktop environment. Transui does
-not register a global shortcut itself. Press the same shortcut again to stop
-and transcribe the current recording. Audio is recorded as 16 kHz mono MP3 at
-32 kbps to keep uploads small.
-
-The **Hosted first, local fallback** setting tries the Hosted endpoint, then
-the Local endpoint when the first request fails. With it disabled, Transui uses
-the Local endpoint only.
-
-Both a normal response (`{"text":"..."}`) and llama.cpp event response
-(`{"type":"transcript.text.done","text":"..."}`) are accepted.

android/app/src/main/java/io/github/transui/android/PushToTalkButton.java

@@ -1,17 +1,34 @@
 package io.github.transui.android;
 
 import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.widget.ImageButton;
 
 public final class PushToTalkButton extends ImageButton {
+    enum IconMode {
+        APPS,
+        STOP_CIRCLE
+    }
+
+    private final Paint iconPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
     private Runnable pressedAction;
     private Runnable releasedAction;
     private boolean trackingPress;
+    private IconMode iconMode = IconMode.STOP_CIRCLE;
 
     public PushToTalkButton(Context context, AttributeSet attributes) {
         super(context, attributes);
+        iconPaint.setColor(context.getColor(R.color.on_signal));
+        setImageDrawable(null);
+    }
+
+    void setIconMode(IconMode iconMode) {
+        this.iconMode = iconMode;
+        setImageDrawable(null);
+        invalidate();
     }
 
     void setPushToTalkActions(Runnable pressedAction, Runnable releasedAction) {
@@ -55,4 +72,48 @@ public final class PushToTalkButton extends ImageButton {
     public boolean performClick() {
         return super.performClick();
     }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        float contentWidth = getWidth() - getPaddingLeft() - getPaddingRight();
+        float contentHeight = getHeight() - getPaddingTop() - getPaddingBottom();
+        float size = Math.min(contentWidth, contentHeight);
+        float centerX = getWidth() / 2f;
+        float centerY = getHeight() / 2f;
+        if (iconMode == IconMode.APPS) {
+            drawAppsIcon(canvas, centerX, centerY, size);
+        } else {
+            drawStopCircleIcon(canvas, centerX, centerY, size);
+        }
+    }
+
+    private void drawAppsIcon(Canvas canvas, float centerX, float centerY, float size) {
+        iconPaint.setStyle(Paint.Style.FILL);
+        float spacing = size * 0.27f;
+        float radius = size * 0.09f;
+        for (int row = -1; row <= 1; row++) {
+            for (int column = -1; column <= 1; column++) {
+                canvas.drawCircle(
+                        centerX + column * spacing,
+                        centerY + row * spacing,
+                        radius,
+                        iconPaint);
+            }
+        }
+    }
+
+    private void drawStopCircleIcon(Canvas canvas, float centerX, float centerY, float size) {
+        iconPaint.setStyle(Paint.Style.STROKE);
+        iconPaint.setStrokeWidth(size * 0.12f);
+        canvas.drawCircle(centerX, centerY, size * 0.42f, iconPaint);
+        iconPaint.setStyle(Paint.Style.FILL);
+        float squareHalfSize = size * 0.17f;
+        canvas.drawRect(
+                centerX - squareHalfSize,
+                centerY - squareHalfSize,
+                centerX + squareHalfSize,
+                centerY + squareHalfSize,
+                iconPaint);
+    }
 }

android/app/src/main/java/io/github/transui/android/SpeechRecognitionActivity.java

@@ -80,25 +80,29 @@ public final class SpeechRecognitionActivity extends Activity {
 
     private void configureRecordButton() {
         record.setAlpha(1);
-        resizeRecordButton(config.pushToTalk ? 80 : 64, config.pushToTalk ? 23 : 19);
         if (config.pushToTalk) {
-            record.setImageResource(R.drawable.ic_mic);
+            record.setBackgroundResource(R.drawable.voice_pill_button);
+            resizeRecordButton(132, 64, 16);
+            record.setIconMode(PushToTalkButton.IconMode.APPS);
             record.setContentDescription(getString(R.string.hold_to_talk));
             record.setPushToTalkActions(this::startRecording, this::stopRecording);
         } else {
-            record.setImageResource(R.drawable.ic_stop);
+            record.setBackgroundResource(R.drawable.voice_primary_button);
+            resizeRecordButton(64, 64, 19);
+            record.setIconMode(PushToTalkButton.IconMode.STOP_CIRCLE);
             record.setContentDescription(getString(R.string.stop));
             record.setOnClickListener(view -> stopRecording());
         }
     }
 
-    private void resizeRecordButton(int sizeDp, int paddingDp) {
+    private void resizeRecordButton(int widthDp, int heightDp, int paddingDp) {
         float density = getResources().getDisplayMetrics().density;
-        int size = Math.round(sizeDp * density);
+        int width = Math.round(widthDp * density);
+        int height = Math.round(heightDp * density);
         int padding = Math.round(paddingDp * density);
         ViewGroup.LayoutParams parameters = record.getLayoutParams();
-        parameters.width = size;
-        parameters.height = size;
+        parameters.width = width;
+        parameters.height = height;
         record.setLayoutParams(parameters);
         record.setPadding(padding, padding, padding, padding);
     }
@@ -194,7 +198,9 @@ public final class SpeechRecognitionActivity extends Activity {
         public void onRecording() {
             runOnUiThread(() -> {
                 status.setText(R.string.listening);
-                if (!config.pushToTalk) record.setImageResource(R.drawable.ic_stop);
+                if (!config.pushToTalk) {
+                    record.setIconMode(PushToTalkButton.IconMode.STOP_CIRCLE);
+                }
                 recordingStartedAt = SystemClock.elapsedRealtime();
                 elapsed.setText(R.string.elapsed_zero);
                 handler.post(updateElapsed);

android/app/src/main/java/io/github/transui/android/TransuiInputMethodService.java

@@ -109,25 +109,29 @@ public final class TransuiInputMethodService extends InputMethodService {
         record.setAlpha(1);
         record.setOnClickListener(null);
         record.setPushToTalkActions(null, null);
-        resizeRecordButton(config.pushToTalk ? 76 : 64, config.pushToTalk ? 22 : 19);
         if (config.pushToTalk) {
-            record.setImageResource(R.drawable.ic_mic);
+            record.setBackgroundResource(R.drawable.voice_pill_button);
+            resizeRecordButton(132, 64, 16);
+            record.setIconMode(PushToTalkButton.IconMode.APPS);
             record.setContentDescription(getString(R.string.hold_to_talk));
             record.setPushToTalkActions(this::startRecording, this::stopRecording);
         } else {
-            record.setImageResource(R.drawable.ic_stop);
+            record.setBackgroundResource(R.drawable.voice_primary_button);
+            resizeRecordButton(64, 64, 19);
+            record.setIconMode(PushToTalkButton.IconMode.STOP_CIRCLE);
             record.setContentDescription(getString(R.string.stop));
             record.setOnClickListener(view -> stopRecording());
         }
     }
 
-    private void resizeRecordButton(int sizeDp, int paddingDp) {
+    private void resizeRecordButton(int widthDp, int heightDp, int paddingDp) {
         float density = getResources().getDisplayMetrics().density;
-        int size = Math.round(sizeDp * density);
+        int width = Math.round(widthDp * density);
+        int height = Math.round(heightDp * density);
         int padding = Math.round(paddingDp * density);
         ViewGroup.LayoutParams parameters = record.getLayoutParams();
-        parameters.width = size;
-        parameters.height = size;
+        parameters.width = width;
+        parameters.height = height;
         record.setLayoutParams(parameters);
         record.setPadding(padding, padding, padding, padding);
     }
@@ -176,7 +180,9 @@ public final class TransuiInputMethodService extends InputMethodService {
         public void onRecording() {
             handler.post(() -> {
                 status.setText(R.string.listening);
-                if (!config.pushToTalk) record.setImageResource(R.drawable.ic_stop);
+                if (!config.pushToTalk) {
+                    record.setIconMode(PushToTalkButton.IconMode.STOP_CIRCLE);
+                }
             });
         }
 

android/app/src/main/res/drawable/ic_mic.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M12,14c1.66,0 3,-1.34 3,-3V5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6c0,1.66 1.34,3 3,3zM17,11c0,2.76 -2.24,5 -5,5s-5,-2.24 -5,-5H5c0,3.53 2.61,6.43 6,6.92V21h2v-3.08c3.39,-0.49 6,-3.39 6,-6.92h-2z" />
-</vector>

android/app/src/main/res/drawable/ic_stop.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path android:fillColor="#FF000000" android:pathData="M6,6h12v12H6z" />
-</vector>

android/app/src/main/res/drawable/voice_pill_button.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="@color/ripple_on_signal">
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="@color/signal" />
+            <corners android:radius="18dp" />
+        </shape>
+    </item>
+</ripple>

android/app/src/main/res/layout/recognition_panel.xml

@@ -60,9 +60,7 @@
         android:layout_marginTop="14dp"
         android:background="@drawable/voice_primary_button"
         android:contentDescription="@string/stop"
-        android:padding="16dp"
-        android:src="@drawable/ic_stop"
-        android:tint="@color/paper" />
+        android:padding="16dp" />
 
     <Button
         android:id="@+id/recognition_cancel"

android/app/src/main/res/layout/voice_input.xml

@@ -75,8 +75,6 @@
             android:layout_gravity="center"
             android:background="@drawable/voice_primary_button"
             android:contentDescription="@string/stop"
-            android:padding="21dp"
-            android:src="@drawable/ic_stop"
-            android:tint="@color/paper" />
+            android:padding="21dp" />
     </FrameLayout>
 </LinearLayout>

android/app/src/main/res/values-night/colors.xml

@@ -6,6 +6,7 @@
     <color name="mist">#11191D</color>
     <color name="paper">#192329</color>
     <color name="line">#34444B</color>
+    <color name="on_signal">#142027</color>
     <color name="ripple_on_signal">#3DFFFFFF</color>
     <color name="ripple_signal">#3342C9C1</color>
 </resources>

android/app/src/main/res/values/colors.xml

@@ -6,6 +6,7 @@
     <color name="mist">#F2F6F7</color>
     <color name="paper">#FFFFFF</color>
     <color name="line">#D5E0E3</color>
+    <color name="on_signal">#FFFFFF</color>
     <color name="ripple_on_signal">#3DFFFFFF</color>
     <color name="ripple_signal">#33008D87</color>
 </resources>

macos/.gitignore

@@ -0,0 +1,2 @@
+DerivedData/
+Transui.xcodeproj/

macos/Info.plist

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>en</string>
+    <key>CFBundleExecutable</key>
+    <string>Transui</string>
+    <key>CFBundleIdentifier</key>
+    <string>io.github.transui.macos</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>Transui</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleShortVersionString</key>
+    <string>0.1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSMinimumSystemVersion</key>
+    <string>15.0</string>
+    <key>LSUIElement</key>
+    <true/>
+    <key>NSHighResolutionCapable</key>
+    <true/>
+    <key>NSAppTransportSecurity</key>
+    <dict>
+        <key>NSAllowsArbitraryLoads</key>
+        <true/>
+    </dict>
+    <key>NSMicrophoneUsageDescription</key>
+    <string>Transui records speech to transcribe it.</string>
+</dict>
+</plist>

macos/Sources/Transui/AppModel.swift

@@ -0,0 +1,221 @@
+import AppKit
+import Combine
+import ServiceManagement
+
+enum RecorderState: Equatable {
+  case idle
+  case preparing
+  case recording
+  case transcribing
+  case success(String)
+  case failure(String)
+}
+
+@MainActor
+final class AppModel: ObservableObject {
+  @Published private(set) var state: RecorderState = .idle
+  @Published private(set) var level = 0.0
+  @Published private(set) var elapsed: TimeInterval = 0
+  @Published private(set) var startsAtLogin = SMAppService.mainApp.status == .enabled
+  @Published private(set) var shortcutError: String?
+
+  let settings = AppSettings()
+  private let audioRecorder = AudioRecorder()
+  private let transcriptionClient = TranscriptionClient()
+  private let hotkeyManager = HotkeyManager()
+  private lazy var overlay = OverlayPanelController(model: self)
+  private var elapsedTimer: Timer?
+  private var startedAt: Date?
+  private var cancellables = Set<AnyCancellable>()
+  private var registeredShortcut: HotkeyShortcut?
+  private var restoringShortcut = false
+  private var noticeID = UUID()
+  private var recordingRequestID: UUID?
+
+  init() {
+    audioRecorder.onLevel = { [weak self] level in self?.level = level }
+    registerHotkey(settings.shortcut)
+    settings.$shortcut
+      .dropFirst()
+      .sink { [weak self] shortcut in self?.registerHotkey(shortcut) }
+      .store(in: &cancellables)
+  }
+
+  var isRecording: Bool { state == .recording || state == .preparing }
+  var isWorking: Bool { isRecording || state == .transcribing }
+
+  func toggleRecording() {
+    switch state {
+    case .recording:
+      stopAndTranscribe()
+    case .preparing:
+      cancelRecording()
+    case .idle, .success, .failure:
+      Task { await startRecording() }
+    case .transcribing:
+      break
+    }
+  }
+
+  func cancelRecording() {
+    guard isRecording else { return }
+    elapsedTimer?.invalidate()
+    elapsedTimer = nil
+    recordingRequestID = nil
+    audioRecorder.cancel()
+    state = .idle
+    overlay.hide()
+  }
+
+  func setStartAtLogin(_ enabled: Bool) {
+    do {
+      if enabled {
+        try SMAppService.mainApp.register()
+      } else {
+        try SMAppService.mainApp.unregister()
+      }
+      let status = SMAppService.mainApp.status
+      startsAtLogin = status == .enabled
+      if enabled, status == .requiresApproval {
+        showFailure("Allow Transui in Login Items.")
+        SMAppService.openSystemSettingsLoginItems()
+      }
+    } catch {
+      startsAtLogin = SMAppService.mainApp.status == .enabled
+      if isWorking {
+        NSSound.beep()
+      } else {
+        showFailure(error.localizedDescription)
+      }
+    }
+  }
+
+  func openMicrophoneSettings() {
+    openSystemSettings("x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone")
+  }
+
+  func openAccessibilitySettings() {
+    openSystemSettings(
+      "x-apple.systempreferences:com.apple.preference.security?Privacy_Accessibility")
+  }
+
+  private func startRecording() async {
+    guard !settings.endpoint.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty else {
+      showFailure("Set a transcription endpoint in Settings.")
+      return
+    }
+    state = .preparing
+    overlay.show()
+    let requestID = UUID()
+    recordingRequestID = requestID
+    do {
+      try await audioRecorder.start()
+      guard recordingRequestID == requestID else {
+        audioRecorder.cancel()
+        return
+      }
+      elapsed = 0
+      startedAt = Date()
+      elapsedTimer = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true) { [weak self] _ in
+        Task { @MainActor in
+          guard let self, let startedAt = self.startedAt else { return }
+          self.elapsed = Date().timeIntervalSince(startedAt)
+          if self.elapsed >= 300 {
+            self.stopAndTranscribe()
+          }
+        }
+      }
+      state = .recording
+    } catch {
+      recordingRequestID = nil
+      audioRecorder.cancel()
+      showFailure(error.localizedDescription)
+    }
+  }
+
+  private func stopAndTranscribe() {
+    guard let recording = audioRecorder.stop() else {
+      showFailure("No recording was captured.")
+      return
+    }
+    recordingRequestID = nil
+    elapsedTimer?.invalidate()
+    elapsedTimer = nil
+    state = .transcribing
+    Task {
+      defer { try? FileManager.default.removeItem(at: recording) }
+      do {
+        let text = try await transcriptionClient.transcribe(
+          recording: recording,
+          endpoint: settings.endpoint,
+          model: settings.model,
+          key: settings.apiKey,
+          prompt: settings.prompt
+        )
+        let result = TranscriptOutput.deliver(text, to: settings.destination)
+        switch result {
+        case .typed: showSuccess("Typed at cursor")
+        case .copied: showSuccess("Copied to clipboard")
+        case .copiedBecauseAccessibilityIsOff:
+          showSuccess("Copied. Accessibility is off")
+        }
+      } catch {
+        showFailure(error.localizedDescription)
+      }
+    }
+  }
+
+  private func registerHotkey(_ shortcut: HotkeyShortcut) {
+    if restoringShortcut {
+      restoringShortcut = false
+      return
+    }
+    if hotkeyManager.register(shortcut, action: { [weak self] in self?.toggleRecording() }) {
+      registeredShortcut = shortcut
+      shortcutError = nil
+    } else {
+      shortcutError = "That shortcut is already in use."
+      if let registeredShortcut {
+        restoringShortcut = true
+        settings.shortcut = registeredShortcut
+      }
+    }
+  }
+
+  private func showSuccess(_ message: String) {
+    state = .success(message)
+    overlay.show()
+    hideOverlayAfterDelay()
+  }
+
+  private func showFailure(_ message: String) {
+    elapsedTimer?.invalidate()
+    elapsedTimer = nil
+    state = .failure(message)
+    overlay.show()
+    hideOverlayAfterDelay(seconds: 3.5)
+  }
+
+  private func hideOverlayAfterDelay(seconds: Double = 1.6) {
+    let id = UUID()
+    noticeID = id
+    Task {
+      try? await Task.sleep(for: .seconds(seconds))
+      guard noticeID == id else { return }
+      guard case .success = state else {
+        if case .failure = state {
+          state = .idle
+          overlay.hide()
+        }
+        return
+      }
+      state = .idle
+      overlay.hide()
+    }
+  }
+
+  private func openSystemSettings(_ value: String) {
+    guard let url = URL(string: value) else { return }
+    NSWorkspace.shared.open(url)
+  }
+}

macos/Sources/Transui/AppSettings.swift

@@ -0,0 +1,66 @@
+import Combine
+import Foundation
+
+enum TranscriptDestination: String, CaseIterable, Identifiable {
+  case cursor
+  case clipboard
+
+  var id: Self { self }
+
+  var label: String {
+    switch self {
+    case .cursor: "Type at cursor"
+    case .clipboard: "Copy to clipboard"
+    }
+  }
+}
+
+@MainActor
+final class AppSettings: ObservableObject {
+  private enum Key {
+    static let endpoint = "endpoint"
+    static let model = "model"
+    static let prompt = "prompt"
+    static let destination = "destination"
+    static let shortcut = "shortcut"
+  }
+
+  private let defaults: UserDefaults
+
+  @Published var endpoint: String { didSet { defaults.set(endpoint, forKey: Key.endpoint) } }
+  @Published var model: String { didSet { defaults.set(model, forKey: Key.model) } }
+  @Published var prompt: String { didSet { defaults.set(prompt, forKey: Key.prompt) } }
+  @Published var destination: TranscriptDestination {
+    didSet { defaults.set(destination.rawValue, forKey: Key.destination) }
+  }
+  @Published var shortcut: HotkeyShortcut {
+    didSet {
+      if let data = try? JSONEncoder().encode(shortcut) {
+        defaults.set(data, forKey: Key.shortcut)
+      }
+    }
+  }
+
+  init(defaults: UserDefaults = .standard) {
+    self.defaults = defaults
+    endpoint = defaults.string(forKey: Key.endpoint) ?? ""
+    model = defaults.string(forKey: Key.model) ?? ""
+    prompt = defaults.string(forKey: Key.prompt) ?? ""
+    destination =
+      TranscriptDestination(
+        rawValue: defaults.string(forKey: Key.destination) ?? ""
+      ) ?? .cursor
+    if let data = defaults.data(forKey: Key.shortcut),
+      let saved = try? JSONDecoder().decode(HotkeyShortcut.self, from: data)
+    {
+      shortcut = saved
+    } else {
+      shortcut = .defaultShortcut
+    }
+  }
+
+  var apiKey: String {
+    get { KeychainStore.read() }
+    set { KeychainStore.write(newValue) }
+  }
+}

macos/Sources/Transui/AudioRecorder.swift

@@ -0,0 +1,86 @@
+import AVFoundation
+import Foundation
+
+enum RecordingError: LocalizedError {
+  case microphoneDenied
+  case couldNotStart
+
+  var errorDescription: String? {
+    switch self {
+    case .microphoneDenied: "Microphone access is off. Enable it in System Settings."
+    case .couldNotStart: "The microphone could not start recording."
+    }
+  }
+}
+
+@MainActor
+final class AudioRecorder: NSObject, AVAudioRecorderDelegate {
+  private var recorder: AVAudioRecorder?
+  private var meterTimer: Timer?
+  private(set) var fileURL: URL?
+  var onLevel: ((Double) -> Void)?
+
+  func start() async throws {
+    guard await Self.requestPermission() else { throw RecordingError.microphoneDenied }
+    let fileURL = FileManager.default.temporaryDirectory
+      .appendingPathComponent("transui-\(UUID().uuidString).wav")
+    self.fileURL = fileURL
+    let settings: [String: Any] = [
+      AVFormatIDKey: Int(kAudioFormatLinearPCM),
+      AVSampleRateKey: 16_000,
+      AVNumberOfChannelsKey: 1,
+      AVLinearPCMBitDepthKey: 16,
+      AVLinearPCMIsFloatKey: false,
+      AVLinearPCMIsBigEndianKey: false,
+    ]
+    let recorder = try AVAudioRecorder(url: fileURL, settings: settings)
+    recorder.delegate = self
+    recorder.isMeteringEnabled = true
+    guard recorder.prepareToRecord(), recorder.record() else {
+      throw RecordingError.couldNotStart
+    }
+    self.recorder = recorder
+    meterTimer = Timer.scheduledTimer(withTimeInterval: 0.08, repeats: true) { [weak self] _ in
+      Task { @MainActor in self?.updateLevel() }
+    }
+  }
+
+  func stop() -> URL? {
+    meterTimer?.invalidate()
+    meterTimer = nil
+    recorder?.stop()
+    recorder = nil
+    onLevel?(0)
+    let url = fileURL
+    fileURL = nil
+    return url
+  }
+
+  func cancel() {
+    let url = stop()
+    if let url { try? FileManager.default.removeItem(at: url) }
+    fileURL = nil
+  }
+
+  private func updateLevel() {
+    guard let recorder else { return }
+    recorder.updateMeters()
+    let decibels = Double(recorder.averagePower(forChannel: 0))
+    let normalized = max(0, min(1, pow(10, decibels / 32)))
+    onLevel?(normalized)
+  }
+
+  private static func requestPermission() async -> Bool {
+    switch AVCaptureDevice.authorizationStatus(for: .audio) {
+    case .authorized: true
+    case .denied, .restricted: false
+    case .notDetermined:
+      await withCheckedContinuation { continuation in
+        AVCaptureDevice.requestAccess(for: .audio) { allowed in
+          continuation.resume(returning: allowed)
+        }
+      }
+    @unknown default: false
+    }
+  }
+}

macos/Sources/Transui/HotkeyManager.swift

@@ -0,0 +1,70 @@
+import Carbon.HIToolbox
+import Foundation
+
+final class HotkeyManager {
+  private var hotkey: EventHotKeyRef?
+  private var handler: EventHandlerRef?
+  private var action: (() -> Void)?
+
+  init() {
+    var type = EventTypeSpec(
+      eventClass: OSType(kEventClassKeyboard),
+      eventKind: UInt32(kEventHotKeyPressed)
+    )
+    InstallEventHandler(
+      GetApplicationEventTarget(),
+      { _, event, context in
+        guard let event, let context else { return noErr }
+        var identifier = EventHotKeyID()
+        let status = GetEventParameter(
+          event,
+          EventParamName(kEventParamDirectObject),
+          EventParamType(typeEventHotKeyID),
+          nil,
+          MemoryLayout<EventHotKeyID>.size,
+          nil,
+          &identifier
+        )
+        guard status == noErr, identifier.id == 1 else { return status }
+        let manager = Unmanaged<HotkeyManager>.fromOpaque(context).takeUnretainedValue()
+        DispatchQueue.main.async { manager.action?() }
+        return noErr
+      },
+      1,
+      &type,
+      Unmanaged.passUnretained(self).toOpaque(),
+      &handler
+    )
+  }
+
+  deinit {
+    unregister()
+    if let handler { RemoveEventHandler(handler) }
+  }
+
+  @discardableResult
+  func register(_ shortcut: HotkeyShortcut, action: @escaping () -> Void) -> Bool {
+    let identifier = EventHotKeyID(signature: Self.signature, id: 1)
+    var candidate: EventHotKeyRef?
+    let status = RegisterEventHotKey(
+      shortcut.keyCode,
+      shortcut.modifiers,
+      identifier,
+      GetApplicationEventTarget(),
+      0,
+      &candidate
+    )
+    guard status == noErr, let candidate else { return false }
+    unregister()
+    hotkey = candidate
+    self.action = action
+    return true
+  }
+
+  private func unregister() {
+    if let hotkey { UnregisterEventHotKey(hotkey) }
+    hotkey = nil
+  }
+
+  private static let signature: OSType = 0x5452_5549  // TRUI
+}

macos/Sources/Transui/HotkeyRecorder.swift

@@ -0,0 +1,59 @@
+import AppKit
+import SwiftUI
+
+struct HotkeyRecorder: NSViewRepresentable {
+  @Binding var shortcut: HotkeyShortcut
+
+  func makeNSView(context: Context) -> HotkeyCaptureView {
+    let view = HotkeyCaptureView()
+    view.onShortcut = { shortcut = $0 }
+    view.stringValue = shortcut.displayName
+    return view
+  }
+
+  func updateNSView(_ view: HotkeyCaptureView, context: Context) {
+    view.onShortcut = { shortcut = $0 }
+    if view.window?.firstResponder !== view {
+      view.stringValue = shortcut.displayName
+    }
+  }
+}
+
+final class HotkeyCaptureView: NSTextField {
+  var onShortcut: ((HotkeyShortcut) -> Void)?
+
+  override init(frame frameRect: NSRect) {
+    super.init(frame: frameRect)
+    isEditable = false
+    isSelectable = false
+    isBezeled = true
+    bezelStyle = .roundedBezel
+    alignment = .center
+    font = .monospacedSystemFont(ofSize: NSFont.systemFontSize, weight: .medium)
+    toolTip = "Click, then press a shortcut"
+  }
+
+  required init?(coder: NSCoder) { nil }
+
+  override var acceptsFirstResponder: Bool { true }
+
+  override func mouseDown(with event: NSEvent) {
+    window?.makeFirstResponder(self)
+    stringValue = "Type shortcut"
+  }
+
+  override func keyDown(with event: NSEvent) {
+    guard let shortcut = HotkeyShortcut(event: event) else {
+      NSSound.beep()
+      return
+    }
+    stringValue = shortcut.displayName
+    onShortcut?(shortcut)
+    window?.makeFirstResponder(nil)
+  }
+
+  override func resignFirstResponder() -> Bool {
+    needsDisplay = true
+    return super.resignFirstResponder()
+  }
+}

macos/Sources/Transui/HotkeyShortcut.swift

@@ -0,0 +1,67 @@
+import AppKit
+import Carbon.HIToolbox
+
+struct HotkeyShortcut: Codable, Equatable {
+  let keyCode: UInt32
+  let modifiers: UInt32
+
+  static let defaultShortcut = HotkeyShortcut(
+    keyCode: UInt32(kVK_ANSI_S),
+    modifiers: UInt32(cmdKey | optionKey)
+  )
+
+  var displayName: String {
+    var result = ""
+    if modifiers & UInt32(controlKey) != 0 { result += "⌃" }
+    if modifiers & UInt32(optionKey) != 0 { result += "⌥" }
+    if modifiers & UInt32(shiftKey) != 0 { result += "⇧" }
+    if modifiers & UInt32(cmdKey) != 0 { result += "⌘" }
+    result += Self.keyNames[keyCode] ?? "Key \(keyCode)"
+    return result
+  }
+
+  init(keyCode: UInt32, modifiers: UInt32) {
+    self.keyCode = keyCode
+    self.modifiers = modifiers
+  }
+
+  init?(event: NSEvent) {
+    let flags = event.modifierFlags.intersection(.deviceIndependentFlagsMask)
+    var carbonModifiers: UInt32 = 0
+    if flags.contains(.command) { carbonModifiers |= UInt32(cmdKey) }
+    if flags.contains(.option) { carbonModifiers |= UInt32(optionKey) }
+    if flags.contains(.control) { carbonModifiers |= UInt32(controlKey) }
+    if flags.contains(.shift) { carbonModifiers |= UInt32(shiftKey) }
+    guard carbonModifiers != 0 else { return nil }
+    self.init(keyCode: UInt32(event.keyCode), modifiers: carbonModifiers)
+  }
+
+  private static let keyNames: [UInt32: String] = [
+    UInt32(kVK_ANSI_A): "A", UInt32(kVK_ANSI_B): "B",
+    UInt32(kVK_ANSI_C): "C", UInt32(kVK_ANSI_D): "D",
+    UInt32(kVK_ANSI_E): "E", UInt32(kVK_ANSI_F): "F",
+    UInt32(kVK_ANSI_G): "G", UInt32(kVK_ANSI_H): "H",
+    UInt32(kVK_ANSI_I): "I", UInt32(kVK_ANSI_J): "J",
+    UInt32(kVK_ANSI_K): "K", UInt32(kVK_ANSI_L): "L",
+    UInt32(kVK_ANSI_M): "M", UInt32(kVK_ANSI_N): "N",
+    UInt32(kVK_ANSI_O): "O", UInt32(kVK_ANSI_P): "P",
+    UInt32(kVK_ANSI_Q): "Q", UInt32(kVK_ANSI_R): "R",
+    UInt32(kVK_ANSI_S): "S", UInt32(kVK_ANSI_T): "T",
+    UInt32(kVK_ANSI_U): "U", UInt32(kVK_ANSI_V): "V",
+    UInt32(kVK_ANSI_W): "W", UInt32(kVK_ANSI_X): "X",
+    UInt32(kVK_ANSI_Y): "Y", UInt32(kVK_ANSI_Z): "Z",
+    UInt32(kVK_ANSI_0): "0", UInt32(kVK_ANSI_1): "1",
+    UInt32(kVK_ANSI_2): "2", UInt32(kVK_ANSI_3): "3",
+    UInt32(kVK_ANSI_4): "4", UInt32(kVK_ANSI_5): "5",
+    UInt32(kVK_ANSI_6): "6", UInt32(kVK_ANSI_7): "7",
+    UInt32(kVK_ANSI_8): "8", UInt32(kVK_ANSI_9): "9",
+    UInt32(kVK_Space): "Space", UInt32(kVK_Return): "Return",
+    UInt32(kVK_Tab): "Tab", UInt32(kVK_Escape): "Esc",
+    UInt32(kVK_F1): "F1", UInt32(kVK_F2): "F2",
+    UInt32(kVK_F3): "F3", UInt32(kVK_F4): "F4",
+    UInt32(kVK_F5): "F5", UInt32(kVK_F6): "F6",
+    UInt32(kVK_F7): "F7", UInt32(kVK_F8): "F8",
+    UInt32(kVK_F9): "F9", UInt32(kVK_F10): "F10",
+    UInt32(kVK_F11): "F11", UInt32(kVK_F12): "F12",
+  ]
+}

macos/Sources/Transui/KeychainStore.swift

@@ -0,0 +1,41 @@
+import Foundation
+import Security
+
+enum KeychainStore {
+  private static let service = "io.github.transui.macos"
+  private static let account = "remote-api-key"
+
+  static func read() -> String {
+    let query: [String: Any] = [
+      kSecClass as String: kSecClassGenericPassword,
+      kSecAttrService as String: service,
+      kSecAttrAccount as String: account,
+      kSecReturnData as String: true,
+      kSecMatchLimit as String: kSecMatchLimitOne,
+    ]
+    var item: CFTypeRef?
+    guard SecItemCopyMatching(query as CFDictionary, &item) == errSecSuccess,
+      let data = item as? Data
+    else { return "" }
+    return String(data: data, encoding: .utf8) ?? ""
+  }
+
+  static func write(_ value: String) {
+    let identity: [String: Any] = [
+      kSecClass as String: kSecClassGenericPassword,
+      kSecAttrService as String: service,
+      kSecAttrAccount as String: account,
+    ]
+    if value.isEmpty {
+      SecItemDelete(identity as CFDictionary)
+      return
+    }
+    let data = Data(value.utf8)
+    let attributes = [kSecValueData as String: data]
+    if SecItemUpdate(identity as CFDictionary, attributes as CFDictionary) == errSecItemNotFound {
+      var item = identity
+      item[kSecValueData as String] = data
+      SecItemAdd(item as CFDictionary, nil)
+    }
+  }
+}

macos/Sources/Transui/OverlayPanel.swift

@@ -0,0 +1,133 @@
+import AppKit
+import SwiftUI
+
+@MainActor
+final class OverlayPanelController {
+  private let panel: NSPanel
+
+  init(model: AppModel) {
+    panel = NSPanel(
+      contentRect: NSRect(x: 0, y: 0, width: 304, height: 82),
+      styleMask: [.borderless, .nonactivatingPanel],
+      backing: .buffered,
+      defer: false
+    )
+    panel.level = .floating
+    panel.isOpaque = false
+    panel.backgroundColor = .clear
+    panel.hasShadow = true
+    panel.hidesOnDeactivate = false
+    panel.collectionBehavior = [.canJoinAllSpaces, .fullScreenAuxiliary, .stationary]
+    panel.contentView = NSHostingView(rootView: RecordingOverlay(model: model))
+  }
+
+  func show() {
+    positionPanel()
+    panel.orderFrontRegardless()
+  }
+
+  func hide() {
+    panel.orderOut(nil)
+  }
+
+  private func positionPanel() {
+    let mouse = NSEvent.mouseLocation
+    let screen = NSScreen.screens.first { NSMouseInRect(mouse, $0.frame, false) } ?? NSScreen.main
+    guard let frame = screen?.visibleFrame else { return }
+    let x = frame.midX - panel.frame.width / 2
+    let y = frame.minY + 42
+    panel.setFrameOrigin(NSPoint(x: x, y: y))
+  }
+}
+
+private struct RecordingOverlay: View {
+  @ObservedObject var model: AppModel
+  private let teal = Color(red: 0.039, green: 0.624, blue: 0.604)
+
+  var body: some View {
+    HStack(spacing: 14) {
+      signal
+        .frame(width: 46, height: 34)
+      VStack(alignment: .leading, spacing: 3) {
+        Text(title)
+          .font(.system(size: 13, weight: .semibold))
+        Text(detail)
+          .font(.system(size: 12, design: .monospaced))
+          .foregroundStyle(.secondary)
+          .lineLimit(1)
+      }
+      Spacer(minLength: 6)
+      if model.isRecording {
+        Button(action: model.toggleRecording) {
+          Image(systemName: "stop.fill")
+            .font(.system(size: 11, weight: .bold))
+            .frame(width: 28, height: 28)
+        }
+        .buttonStyle(.borderedProminent)
+        .tint(teal)
+        .clipShape(Circle())
+        .help("Stop and transcribe")
+      }
+    }
+    .padding(.horizontal, 17)
+    .frame(width: 304, height: 82)
+    .background(.ultraThickMaterial, in: RoundedRectangle(cornerRadius: 19, style: .continuous))
+    .overlay {
+      RoundedRectangle(cornerRadius: 19, style: .continuous)
+        .strokeBorder(.white.opacity(0.13))
+    }
+  }
+
+  @ViewBuilder
+  private var signal: some View {
+    switch model.state {
+    case .recording:
+      HStack(alignment: .center, spacing: 3) {
+        ForEach(0..<5, id: \.self) { index in
+          Capsule()
+            .fill(teal)
+            .frame(width: 4, height: barHeight(index))
+        }
+      }
+    case .preparing, .transcribing:
+      ProgressView().controlSize(.small).tint(teal)
+    case .success:
+      Image(systemName: "checkmark.circle.fill").font(.title2).foregroundStyle(teal)
+    case .failure:
+      Image(systemName: "exclamationmark.triangle.fill").font(.title3).foregroundStyle(.red)
+    case .idle:
+      Image(systemName: "waveform").foregroundStyle(teal)
+    }
+  }
+
+  private var title: String {
+    switch model.state {
+    case .preparing: "Starting microphone"
+    case .recording: "Recording"
+    case .transcribing: "Transcribing"
+    case .success(let message), .failure(let message): message
+    case .idle: "Ready"
+    }
+  }
+
+  private var detail: String {
+    switch model.state {
+    case .recording: Self.duration(model.elapsed)
+    case .preparing: "Waiting for permission"
+    case .transcribing: "Sending audio"
+    case .failure: "Open Transui settings to fix this"
+    case .success: "Done"
+    case .idle: model.settings.shortcut.displayName
+    }
+  }
+
+  private func barHeight(_ index: Int) -> CGFloat {
+    let shape = [0.55, 0.82, 1.0, 0.72, 0.45][index]
+    return 7 + 24 * max(0.08, model.level * shape)
+  }
+
+  private static func duration(_ interval: TimeInterval) -> String {
+    let seconds = Int(interval)
+    return String(format: "%02d:%02d", seconds / 60, seconds % 60)
+  }
+}

macos/Sources/Transui/SettingsView.swift

@@ -0,0 +1,61 @@
+import SwiftUI
+
+struct SettingsView: View {
+  @ObservedObject var model: AppModel
+  @ObservedObject private var settings: AppSettings
+  @State private var apiKey = ""
+
+  init(model: AppModel) {
+    self.model = model
+    settings = model.settings
+  }
+
+  var body: some View {
+    Form {
+      Section("Transcription") {
+        TextField("Endpoint", text: $settings.endpoint, prompt: Text("https://api.example.com"))
+        TextField("Model", text: $settings.model)
+        SecureField("API key", text: $apiKey)
+          .onChange(of: apiKey) { _, value in settings.apiKey = value }
+        TextField("Prompt", text: $settings.prompt, axis: .vertical)
+          .lineLimit(2...4)
+        Picker("Output", selection: $settings.destination) {
+          ForEach(TranscriptDestination.allCases) { destination in
+            Text(destination.label).tag(destination)
+          }
+        }
+      }
+
+      Section("Controls") {
+        LabeledContent("Record shortcut") {
+          HotkeyRecorder(shortcut: $settings.shortcut)
+            .frame(width: 132, height: 24)
+        }
+        if let shortcutError = model.shortcutError {
+          Text(shortcutError)
+            .font(.caption)
+            .foregroundStyle(.red)
+        }
+        Toggle(
+          "Start at login",
+          isOn: Binding(
+            get: { model.startsAtLogin },
+            set: model.setStartAtLogin
+          )
+        )
+      }
+
+      Section("Permissions") {
+        LabeledContent("Microphone") {
+          Button("Open settings", action: model.openMicrophoneSettings)
+        }
+        LabeledContent("Type at cursor") {
+          Button("Open Accessibility", action: model.openAccessibilitySettings)
+        }
+      }
+    }
+    .formStyle(.grouped)
+    .frame(width: 500, height: 470)
+    .onAppear { apiKey = settings.apiKey }
+  }
+}

macos/Sources/Transui/TranscriptCleaner.swift

@@ -0,0 +1,20 @@
+import Foundation
+
+enum TranscriptCleaner {
+  static func clean(_ text: String) -> String {
+    var prefix = text.startIndex
+    if prefix < text.endIndex, text[prefix] == "\u{FEFF}" {
+      prefix = text.index(after: prefix)
+    }
+    while prefix < text.endIndex, text[prefix].isWhitespace {
+      prefix = text.index(after: prefix)
+    }
+    guard text[prefix...].hasPrefix("language ") else { return text }
+
+    let markers = ["<asr_text>", "<astext>"]
+    let marker = markers.compactMap { text.range(of: $0, range: prefix..<text.endIndex) }
+      .min { $0.lowerBound < $1.lowerBound }
+    guard let marker else { return text }
+    return String(text[marker.upperBound...])
+  }
+}

macos/Sources/Transui/TranscriptOutput.swift

@@ -0,0 +1,43 @@
+import AppKit
+import ApplicationServices
+import Carbon.HIToolbox
+
+enum OutputResult {
+  case typed
+  case copied
+  case copiedBecauseAccessibilityIsOff
+}
+
+enum TranscriptOutput {
+  @MainActor
+  static func deliver(_ text: String, to destination: TranscriptDestination) -> OutputResult {
+    let pasteboard = NSPasteboard.general
+    pasteboard.clearContents()
+    pasteboard.setString(text, forType: .string)
+    guard destination == .cursor else { return .copied }
+
+    let options = [kAXTrustedCheckOptionPrompt.takeUnretainedValue() as String: true]
+    guard AXIsProcessTrustedWithOptions(options as CFDictionary) else {
+      return .copiedBecauseAccessibilityIsOff
+    }
+    guard let source = CGEventSource(stateID: .hidSystemState),
+      let keyDown = CGEvent(
+        keyboardEventSource: source,
+        virtualKey: CGKeyCode(kVK_ANSI_V),
+        keyDown: true
+      ),
+      let keyUp = CGEvent(
+        keyboardEventSource: source,
+        virtualKey: CGKeyCode(kVK_ANSI_V),
+        keyDown: false
+      )
+    else {
+      return .copiedBecauseAccessibilityIsOff
+    }
+    keyDown.flags = .maskCommand
+    keyUp.flags = .maskCommand
+    keyDown.post(tap: .cghidEventTap)
+    keyUp.post(tap: .cghidEventTap)
+    return .typed
+  }
+}

macos/Sources/Transui/TranscriptionClient.swift

@@ -0,0 +1,110 @@
+import Foundation
+
+#if canImport(FoundationNetworking)
+  import FoundationNetworking
+#endif
+
+enum TranscriptionError: LocalizedError {
+  case invalidEndpoint
+  case invalidResponse
+  case http(Int)
+
+  var errorDescription: String? {
+    switch self {
+    case .invalidEndpoint: "The transcription endpoint is invalid."
+    case .invalidResponse: "The server response did not contain a transcript."
+    case .http(let status): "The server returned HTTP \(status)."
+    }
+  }
+}
+
+struct TranscriptionClient {
+  static func endpointURL(from value: String) -> URL? {
+    var endpoint = value.trimmingCharacters(in: .whitespacesAndNewlines)
+    while endpoint.hasSuffix("/") { endpoint.removeLast() }
+    if !endpoint.contains("/v1/audio/transcriptions") {
+      endpoint += "/v1/audio/transcriptions"
+    }
+    guard let url = URL(string: endpoint),
+      let scheme = url.scheme?.lowercased(),
+      scheme == "http" || scheme == "https",
+      url.host != nil
+    else { return nil }
+    return url
+  }
+
+  func transcribe(
+    recording: URL,
+    endpoint: String,
+    model: String,
+    key: String,
+    prompt: String
+  ) async throws -> String {
+    guard let url = Self.endpointURL(from: endpoint) else {
+      throw TranscriptionError.invalidEndpoint
+    }
+
+    let boundary = "transui-\(UUID().uuidString)"
+    var request = URLRequest(url: url)
+    request.httpMethod = "POST"
+    request.timeoutInterval = 300
+    request.setValue(
+      "multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
+    request.setValue("application/json", forHTTPHeaderField: "Accept")
+    if !key.isEmpty {
+      request.setValue("Bearer \(key)", forHTTPHeaderField: "Authorization")
+    }
+    request.httpBody = try multipartBody(
+      boundary: boundary,
+      recording: recording,
+      model: model,
+      prompt: prompt
+    )
+
+    let (data, response) = try await URLSession.shared.data(for: request)
+    guard let http = response as? HTTPURLResponse else {
+      throw TranscriptionError.invalidResponse
+    }
+    guard (200..<300).contains(http.statusCode) else {
+      throw TranscriptionError.http(http.statusCode)
+    }
+    guard data.count <= 1_048_576 else {
+      throw TranscriptionError.invalidResponse
+    }
+    guard let object = try JSONSerialization.jsonObject(with: data) as? [String: Any],
+      let text = object["text"] as? String
+    else {
+      throw TranscriptionError.invalidResponse
+    }
+    return TranscriptCleaner.clean(text)
+  }
+
+  private func multipartBody(
+    boundary: String,
+    recording: URL,
+    model: String,
+    prompt: String
+  ) throws -> Data {
+    var data = Data()
+    func field(_ name: String, _ value: String) {
+      data.append("--\(boundary)\r\n")
+      data.append("Content-Disposition: form-data; name=\"\(name)\"\r\n\r\n")
+      data.append("\(value)\r\n")
+    }
+    field("response_format", "json")
+    if !model.isEmpty { field("model", model) }
+    if !prompt.isEmpty { field("prompt", prompt) }
+    data.append("--\(boundary)\r\n")
+    data.append("Content-Disposition: form-data; name=\"file\"; filename=\"recording.wav\"\r\n")
+    data.append("Content-Type: audio/wav\r\n\r\n")
+    data.append(try Data(contentsOf: recording))
+    data.append("\r\n--\(boundary)--\r\n")
+    return data
+  }
+}
+
+extension Data {
+  fileprivate mutating func append(_ string: String) {
+    append(contentsOf: string.utf8)
+  }
+}

macos/Sources/Transui/TransuiApp.swift

@@ -0,0 +1,44 @@
+import AppKit
+import SwiftUI
+
+final class AppDelegate: NSObject, NSApplicationDelegate {
+  func applicationDidFinishLaunching(_ notification: Notification) {
+    NSApp.setActivationPolicy(.accessory)
+  }
+}
+
+@main
+struct TransuiApp: App {
+  @NSApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
+  @StateObject private var model = AppModel()
+
+  var body: some Scene {
+    MenuBarExtra {
+      Button(model.isRecording ? "Stop and transcribe" : "Start recording") {
+        model.toggleRecording()
+      }
+      .keyboardShortcut("r")
+      .disabled(model.state == .transcribing)
+
+      if model.isRecording {
+        Button("Cancel recording", role: .destructive) {
+          model.cancelRecording()
+        }
+      }
+
+      Divider()
+      SettingsLink { Text("Settings…") }
+      Divider()
+      Button("Quit Transui") { NSApp.terminate(nil) }
+        .keyboardShortcut("q")
+    } label: {
+      Image(systemName: model.isRecording ? "waveform.circle.fill" : "waveform")
+        .accessibilityLabel(model.isRecording ? "Transui recording" : "Transui")
+    }
+
+    Settings {
+      SettingsView(model: model)
+    }
+    .windowResizability(.contentSize)
+  }
+}

macos/Tests/TransuiTests/TranscriptCleanerTests.swift

@@ -0,0 +1,30 @@
+import XCTest
+
+@testable import Transui
+
+final class TranscriptCleanerTests: XCTestCase {
+  func testRemovesAsTextPrefix() {
+    XCTAssertEqual(
+      TranscriptCleaner.clean("language English<astext>Hello there"),
+      "Hello there"
+    )
+  }
+
+  func testRemovesAsrTextPrefix() {
+    XCTAssertEqual(
+      TranscriptCleaner.clean("language zh <asr_text>你好"),
+      "你好"
+    )
+  }
+
+  func testRemovesPrefixAfterWhitespaceAndBom() {
+    XCTAssertEqual(
+      TranscriptCleaner.clean("\u{FEFF} \n\tlanguage English<astext>Hello"),
+      "Hello"
+    )
+  }
+
+  func testPreservesOrdinaryTranscript() {
+    XCTAssertEqual(TranscriptCleaner.clean("language is useful"), "language is useful")
+  }
+}

macos/Tests/TransuiTests/TranscriptionClientTests.swift

@@ -0,0 +1,26 @@
+import XCTest
+
+@testable import Transui
+
+final class TranscriptionClientTests: XCTestCase {
+  func testAddsTranscriptionPath() {
+    XCTAssertEqual(
+      TranscriptionClient.endpointURL(from: "https://example.com/")?.absoluteString,
+      "https://example.com/v1/audio/transcriptions"
+    )
+  }
+
+  func testKeepsFullTranscriptionPath() {
+    XCTAssertEqual(
+      TranscriptionClient.endpointURL(
+        from: "https://example.com/v1/audio/transcriptions"
+      )?.absoluteString,
+      "https://example.com/v1/audio/transcriptions"
+    )
+  }
+
+  func testRejectsInvalidEndpoint() {
+    XCTAssertNil(TranscriptionClient.endpointURL(from: ""))
+    XCTAssertNil(TranscriptionClient.endpointURL(from: "example.com"))
+  }
+}

macos/Transui.entitlements

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.device.audio-input</key>
+    <true/>
+</dict>
+</plist>

macos/project.yml

@@ -0,0 +1,67 @@
+name: Transui
+
+options:
+  createIntermediateGroups: true
+  deploymentTarget:
+    macOS: "15.0"
+  xcodeVersion: "16.0"
+
+configs:
+  Debug: debug
+  Release: release
+
+settings:
+  base:
+    CODE_SIGN_STYLE: Automatic
+    CURRENT_PROJECT_VERSION: 1
+    MARKETING_VERSION: 0.1.0
+    SWIFT_VERSION: 5.0
+
+targets:
+  Transui:
+    type: application
+    platform: macOS
+    deploymentTarget: "15.0"
+    sources:
+      - path: Sources/Transui
+    settings:
+      base:
+        CODE_SIGN_ENTITLEMENTS: Transui.entitlements
+        ENABLE_HARDENED_RUNTIME: "YES"
+        GENERATE_INFOPLIST_FILE: "NO"
+        INFOPLIST_FILE: Info.plist
+        PRODUCT_BUNDLE_IDENTIFIER: io.github.transui.macos
+        PRODUCT_NAME: Transui
+
+  TransuiTests:
+    type: bundle.unit-test
+    platform: macOS
+    deploymentTarget: "15.0"
+    sources:
+      - path: Tests/TransuiTests
+    dependencies:
+      - target: Transui
+    settings:
+      base:
+        GENERATE_INFOPLIST_FILE: "YES"
+        PRODUCT_BUNDLE_IDENTIFIER: io.github.transui.macos.tests
+
+schemes:
+  Transui:
+    build:
+      targets:
+        Transui: all
+        TransuiTests: [test]
+    run:
+      config: Debug
+    test:
+      config: Debug
+      gatherCoverageData: true
+      targets:
+        - TransuiTests
+    profile:
+      config: Release
+    analyze:
+      config: Debug
+    archive:
+      config: Release