It looks fantastic but I think they should have chosen sqlite over postgres in this case since it aims to be minimal

Have been self-hosting this on a raspberry pi for the last 2 years, and it has been completely painless. It just keeps chugging along without needing to take a look.

Postgres makes sense if you take into account the paid hosting option (which is what I use), which requires multi-tenant support. I agree, SQLite would be way more convenient from a hosting standpoint, but minimalism on the user side does not have to mean minimalism on the hosting side.

Wow, that certainly explains the minimalist strength of Kanboard.

Unrelated, but I was looking a very long time to re-discover this app (someone else posted it here some time ago). It was impossible to search for, and I haven't bookmarked it. And now I have it. Thank you!

For projects like this you could easily search something like "rss feed selfhosted reddit"

Well, my case is that I like this app's UI (not interested in self hosted RSS), so I wanted to create similarly aesthetic website for my own use, but could not find "the picture" I had in my mind.