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The runner spawns child agent sessions with `detached: true` (`cli/src/runner/run.ts:454`) so they survive runner restart, and runner cleanup (`run.ts:1049`) does not iterate or kill tracked children on shutdown. The runner is already designed as a long-lived process whose exit leaves agent sessions intact. But Node's `detached: true` calls `setsid()` (new process session), which does NOT escape the parent's systemd cgroup. Without an explicit `KillMode`, systemd defaults to `control-group`, which SIGTERMs every PID in the runner's cgroup whenever the unit stops - forcibly archiving every running session and discarding the detach contract. Adds `KillMode=process` to the reference runner unit and a note explaining the contract. With this change, `systemctl restart hapi-runner.service` (and any cascade-stop from `Requires=`) only signals the main runner PID; the cleanup runs without killing descendants; agent sessions stay alive; the new runner reconnects via the existing socket.io reconnect path (`cli/src/api/apiMachine.ts:385`) and re-establishes control via the existing RPC layer. This is the smallest fix for #915. The complementary safety net - runner re-attaching to orphaned children on cold start when no running runner exists - will be tracked in a separate issue and PR. AI-disclosure (per CONTRIBUTING.md): drafted with claude-opus-4.7 as peer agent during a fork-side post-mortem of a 7-hour outage that this fix would have prevented. Co-authored-by: Cursor <cursoragent@cursor.com>
HAPI
Run official Claude Code / Codex / Gemini / OpenCode sessions locally and control them remotely through a Web / PWA / Telegram Mini App.
Why HAPI? HAPI is a local-first alternative to Happy. See Why Not Happy? for the key differences.
Features
- Seamless Handoff - Work locally, switch to remote when needed, switch back anytime. No context loss, no session restart.
- Native First - HAPI wraps your AI agent instead of replacing it. Same terminal, same experience, same muscle memory.
- AFK Without Stopping - Step away from your desk? Approve AI requests from your phone with one tap.
- Your AI, Your Choice - Claude Code, Codex, Cursor Agent, Gemini, OpenCode—different models, one unified workflow.
- Terminal Anywhere - Run commands from your phone or browser, directly connected to the working machine.
- Voice Control - Talk to your AI agent hands-free using the built-in voice assistant.
- Workspace Browser - Opt-in via one or more
hapi runner start --workspace-root <path>flags: browse scoped file trees from the web and start sessions in allowed subdirectories.
Demo
https://github.com/user-attachments/assets/38230353-94c6-4dbe-9c29-b2a2cc457546
Getting Started
npx @twsxtd/hapi hub --relay # start hub with E2E encrypted relay
npx @twsxtd/hapi # run claude code
hapi server remains supported as an alias.
The terminal will display a URL and QR code. Scan the QR code with your phone or open the URL to access.
The relay uses WireGuard + TLS for end-to-end encryption. Your data is encrypted from your device to your machine.
For self-hosted options (Cloudflare Tunnel, Tailscale), see Installation
Docs
Build from source
bun install
bun run build:single-exe
Credits
HAPI means "哈皮" a Chinese transliteration of Happy. Great credit to the original project.
Languages
TypeScript
99.5%
CSS
0.2%
JavaScript
0.2%