For anyone looking for a simple GUI for local testing/development of Postgres based applications. I built a tool a few years ago that simplifies the process: https://github.com/BenjaminFaal/pgtt

Is this basically using templates as "snapshots", and making it easy to go back and forth between them? Little hard to tell from the README but something like that would be useful to me and my team: right now it's a pain to iterate on sql migrations, and I think this would help.

Thats exactly what it is, just try it with the provided docker-compose file you will get it then.

Would love to see a snapshot of the GUI as part of the README.md.

Also docker link seems to be broken.

Fixed the package link. Github somehow made it private. I will add a snapshot right now.