Hey that looks pretty neat! I sort of miss MS Access sometimes, and this feels like it might fill the same niche. The star count also just went up 50% :-D

Does it use Sqlite or something on the backend, or is it all it's own? Do you know if it runs on Linux?

Edit: My answers based on a quick review (please correct if I'm wrong). It uses Postgres (cool!) and definitely runs on Linux (I see Dockerfile in there). UI is through the browser?