Caleb Win released GitGres, an open-source GitHub reimplementation that stores everything in PostgreSQL. Git objects, refs, packfiles, pull requests, issues, comments, teams, orgs. The server holds nothing on disk. All of it lives in Postgres rows. Built in Rust, designed for teams running AI agents who need more control than GitHub offers. The architecture exposes tradeoffs GitHub won't let you touch. Cheaper storage? Use Postgres tiered storage like PolarDB to archive cold data to object storage. Running agents locally? Colocate GitGres with them and skip the network round-trip entirely. These are configuration choices the project was built to enable. With SQL storage, your code repository becomes a queryable database. Agents can run joins across code history and track patterns with actual database queries instead of parsing git objects through libraries. With multiple agents working on the same codebase without the merge conflicts that plague file-based systems. PostgreSQL handles coordination through locking and transaction isolation. GitGres supports smart HTTP protocols and works with the gh CLI for managing repos and pull requests. But it's early. There's no search, no CI/CD, no webhooks, no SSH transport, and no web interface. If you need those, you'll need to build them or wait. The project is open source at github.com/calebwin/gitgres.