Show HN: Constellation is an open-source Hasura-compatible GraphQL engine in Go

Hi, Nuno from Nhost here. A bit of context: Hasura v2 has been the core of Nhost’s GraphQL layer for years. We built Constellation because we wanted to keep this part of our stack open source and have more control over the GraphQL/permissions layer.

It is still early. Today it runs alongside Hasura, and Hasura still owns metadata authoring. The part we are focusing on first is compatibility on the GraphQL request path: metadata -> schema per role -> `/v1/graphql`.

The most useful feedback for us would be from people with real Hasura projects: schema diffs, metadata that does not work, behavioral differences, or queries that produce different results.

Happy to answer technical questions about the implementation, compatibility layer, or why we chose Go.