Hi HN - author here.
FastBackend reads a SQLAlchemy or Prisma schema, compiles it to a framework-agnostic IR, and a runtime adapter serves CRUD + relationships as REST with OpenAPI on the side.
Try it in ~2 min:
npm i -g @fastbackend/cli
git clone https://github.com/darula-hpp/fastbackend
cd fastbackend/examples/sqlalchemy-fastapi
pip install -r requirements.txt
fastbackend generate && fastbackend dev
open http://localhost:8301/docs
What's shipped:
- CLI + core on npm (@fastbackend/cli 0.1.2)
- FastAPI adapter on PyPI (fastbackend-fastapi)
- Express + Prisma adapter on npm
- Custom routes and overrides for non-CRUD logic
Honest limits:
- FastAPI adapter uses in-memory storage (MVP)
- Express + Prisma is more production-shaped
- No hosted platform — self-hosted codegen/runtime
The IR is the interesting part: same schema could be served by different backend adapters. OpenAPI is the frontend handoff (Orval, openapi-typescript, etc.).
Roadmap (not shipped): declarative wiring for storage/OAuth with secrets in .env.
Happy to answer architecture questions or comparisons to Supabase, PostgREST, FastAPI-CRUD, etc.