Open-source multi-agent platform that automates the software development life cycle with Gemma 4. From a one-line idea (optionally a whiteboard photo), four Gemma 4 agents write requirements, design, code and tests. An independent Manager agent runs real checks (it executes the generated tests) plus an LLM review, and approves, sends work back for rework, or escalates to a human. Shared event-sourced state, per-agent RAG, append-only process log. MIT licensed.