Far more than I can reasonably support:

• self hosted things I use - caddy, the document foundation, Jellyfin, Forgejo, etc
• Android apps - F-Droid, NewPipe, Signal, RethinkDNS, etc
• desktop apps - flatpak, For, Godot, etc
• infrastructure stuff - let’s encrypt, openssh, Linux distros (mine doesn’t accept donations unfortunately), etc

But the short list for now is:

• Let’s Encrypt
• Signal
• F-Droid

And I’ll probably run a Tor relay or something as well.