IronFox is really good on mobile.

By what criteria?

How about Delta Chat? At least as secure as Signal, open source, and decentralized.

You can do that in LibreOffice. Its just a few more clicks than in Excel. Its such a common feature they should really make it clearer. I think the feature is “Database Ranges”

I mean, self hosting is basically gardening for computers.

Looks neat, but Navidrome+Tempo have been working great for me.