Using this thread to ask; Is there some simple sql based migration tool for psql?

Check out: https://github.com/ariga/atlas. It’s like Terraform for databases.

(I'm one of the authors of this project).

Forr postgres, how does the schema diffing aspect compare to migra?

https://github.com/djrobstep/migra

I'm asking because, although migra is excellent and there are multiple migrations tools based on it (at least https://github.com/bikeshedder/tusker and https://github.com/blainehansen/postgres_migrator), issues are piling up but development seem to be slowing down