Use Claude and Antigravity subscriptions with Pi, OpenCode and other coding clients. Local API bridge, usage dashboard and optional Mac app.

gstack_vibehard — Cross-harness installer & fullstack template kit with deep agent integration (Codex, Claude Code, OpenCode)

`HarnessV1` adapter backed by [`@anthropic-ai/claude-agent-sdk`](https://www.npmjs.com/package/@anthropic-ai/claude-agent-sdk), which drives the `claude` CLI. The adapter ships a bridge process that runs inside a sandbox and talks to the host over a WebSo