AlarmTalk

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AlarmTalk is an OS-native voice alarm app. At the scheduled time, it rings a real alarm using a voice the user picked — a recorded one, an uploaded clip, a voice shared by family or a partner, or a voice cloned by AI.

Why a "real" alarm

Most voice-alarm apps depend on push notifications or server cron, which can silently fail on flight mode, Doze, or weak networks. AlarmTalk rings from the OS-native alarm scheduler and plays only locally cached audio, so the ring path never needs the network.

Status

• Version: v0.1.0 (Closed Beta preparation)
• Branch: develop
• Android: Phase 1–6 implemented, verified on a physical device
• iOS: AlarmKit (iOS 26+) PoC in progress
• Backend: Cloudflare Workers + Hono + Turso, deployed

Stack

Layer	Stack
Android	Kotlin 2.0 · Jetpack Compose · Material 3 · Room · DataStore · Retrofit · WorkManager · AlarmManager.setAlarmClock
iOS (PoC)	Swift · SwiftUI · AlarmKit · ActivityKit (Live Activity)
Backend	TypeScript 6 · Hono 4 · Cloudflare Workers · Zod · Vitest
Database	Turso (libSQL / SQLite)
Storage	Cloudflare R2 (deterministic TTS cache)
Voice AI	ElevenLabs Instant Voice Clone + TTS
Auth	JWT (HS256, 7d) · Google ID token · Apple ID token
Landing	Static HTML + Tailwind CDN + Iconify (apps/landing)

Repository Layout

.
├── apps/
│   ├── android-native/   Kotlin + Jetpack Compose Android app
│   ├── ios-native/       SwiftUI + AlarmKit PoC
│   └── landing/          Static landing page
├── packages/
│   ├── backend/          Cloudflare Workers + Hono API
│   ├── shared/           Shared types and Zod schemas
│   ├── ui/               Design tokens
│   └── voice/            Voice-provider abstraction
└── docs/                 Project documentation

Quick Start

Backend

cd packages/backend
npm install
npm run dev        # wrangler dev --env dev
npm test           # vitest
npm run deploy     # wrangler deploy --env production

Set up local secrets in ignored files: packages/backend/.dev.vars.dev and packages/backend/.dev.vars.prod. See docs/tech/ for the full list.

Android

cd apps/android-native
./gradlew :app:assembleDebug
./gradlew :app:testDebugUnitTest
./gradlew :app:installDebug

If the Android SDK is not auto-detected, create an ignored apps/android-native/local.properties with sdk.dir=....

iOS (macOS only)

cd apps/ios-native
brew install xcodegen
xcodegen generate
open VoiceAlarmNative.xcodeproj

Non-negotiable Rules

1. The alarm-ring path must use OS-native scheduling and local audio only. No push, no server cron, no fetch at ring time.
2. Voice AI calls (cloning, TTS) only happen on explicit user actions, never from background tasks or automated tests.
3. Voice data is only shared inside a user's family/partner group. External download is disabled by design.

Documentation

See docs/README.md for the full documentation index.

Security

See SECURITY.md for vulnerability reporting and the supported version policy.

License

MIT — see LICENSE.