Show HN: Schema-first codegen for SQL, Rust, Go, Python and TS (single binary)

1•hlop3z•1h ago

AstrolaDB (alab) is a schema-first code generator for polyglot systems. Define your schema once and generate:

- SQL migrations (PostgreSQL, SQLite)

- Language-native types (Rust, Go, Python, TypeScript)

- API contracts (GraphQL, OpenAPI)

It's build-time only, with zero runtime dependencies. All outputs are explicit artifacts you can commit. The schema is the single source of truth across languages and APIs.

Links:

- Repo: https://github.com/hlop3z/astroladb

- Docs: https://hlop3z.github.io/astroladb/

- Comparison: https://hlop3z.github.io/astroladb/comparison/

Comments

hlop3z•1h ago

I built AstrolaDB after repeatedly running into schema drift. For example, forgetting to update TypeScript models.

Most tools either lock you into a runtime or require a large ecosystem. I wanted a single binary that runs locally or in CI and produces fully owned artifacts, with no runtime coupling.

verdverm•5m ago

I have built something similar, using CUE to define the source of truth instead of JS/TS.

https://github.com/hofstadter-io/hof

How do users connect the generated code to the code they have to write in your framework? I use diff utils so they can write directly in the generated code without breaking things

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