Ask HN: Anybody using multi LLM coding workflow?

I wish to have a fully local Git workflow where Claude Opus translates my requirements into extremely detailed plan/spec broken down as implementation steps as a Markdown file, Gemini-pro picks up each task and submits a PR for Opus to review and give feedback. Gemini should not proceed until Opus is happy. Continue like this until all tasks are done. I dont want another 3rd party orchestrator or service. I dont want to self-host Gitea just for this. Any clever way to get such a workflow? Anybody doing something similar already?