hailin
e706a4cdc7
Root cause: PcmPlayer called openPlayer() without audio session config,
so Android defaulted to earpiece-only mode. When the mic was actively
recording, playback was silently suppressed — the agent's TTS audio was
sent successfully over WebSocket but never reached the speaker.
Changes:
1. PcmPlayer (pcm_player.dart):
- Added audio_session package for proper audio session management
- Configure AudioSession with playAndRecord category so mic + speaker
work simultaneously
- Set voiceCommunication usage to enable Android hardware AEC (echo
cancellation) — prevents feedback loops when speaker is active
- defaultToSpeaker routes output to loudspeaker instead of earpiece
- Restored setSpeakerOn() method stub (used by UI toggle)
2. AgentCallPage (agent_call_page.dart):
- Fixed fire-and-forget bug: _pcmPlayer.feed() returns Future but was
called without await, causing interleaved feedUint8FromStream calls
- Added _feedChain serializer to guarantee sequential audio feeding
3. Dependencies:
- Added audio_session package to pubspec.yaml
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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| it0-web-admin | ||
| it0_app | ||
| packages | ||
| .dockerignore | ||
| .env.example | ||
| .gitignore | ||
| Dockerfile.service | ||
| README.md | ||
| logo.svg | ||
| package.json | ||
| pnpm-lock.yaml | ||
| pnpm-workspace.yaml | ||
| tsconfig.base.json | ||
| turbo.json | ||
README.md
IT0 — AI-Powered Server Cluster Operations Platform
Intelligent operations platform that combines AI agents with human oversight for managing server clusters.
Architecture
- Backend: NestJS microservices (TypeScript) with DDD + Clean Architecture
- Mobile: Flutter app with Riverpod state management
- Web Admin: Next.js dashboard with Zustand + React Query
- Voice: Python service for voice-based interaction (STT/TTS/VAD)
Services
| Service | Description |
|---|---|
| auth-service | Authentication, RBAC, API key management |
| agent-service | AI agent orchestration (Claude CLI + API) |
| inventory-service | Server, cluster, credential management |
| monitor-service | Metrics collection, alerting, health checks |
| ops-service | Task execution, approvals, standing orders |
| comm-service | Multi-channel notifications, escalation |
| audit-service | Audit logging, compliance trail |
| voice-service | Voice pipeline (Python) |
Quick Start
# Backend
pnpm install
pnpm dev
# Flutter
cd it0_app && flutter pub get && flutter run
# Web Admin
cd it0-web-admin && pnpm install && pnpm dev
Tech Stack
- Runtime: Node.js 20+, Dart 3.x, Python 3.11+
- Database: PostgreSQL (schema-per-tenant)
- Cache/Events: Redis Streams
- AI: Anthropic Claude (CLI + API)
- Build: pnpm workspaces + Turborepo