A planner (e.g. Google/Gemini) decomposes your GitHub issue into scoped stories. Workers (local Ollama, qwen3-coder) build the code. A reviewer (e.g. OpenAI/GPT5) catches real bugs.

Demo (2 min): https://www.youtube.com/watch?v=ZXpksHXxQMQ

Try it: npx workermill