Snac (AKA Snac2) is a minimal microblogging ActivityPub instance written in C.
Features (from its Codeberg repo):
- Lightweight, minimal dependencies
- Extensive support of ActivityPub operations, e.g. write public notes, follow users, be followed, reply to the notes of others, admire wonderful content (like or boost), write private messages…
- Multiuser
- Mastodon API support, so Mastodon-compatible apps can be used
- Simple but effective web interface
- Easily-accessed MUTE button to silence morons
- Tested interoperability with related software
- No database needed
- Totally JavaScript-free
- No cookies either
- Not much bullshit
I’ve been running it as my main microblogging account for a year and it’s been extremely solid and uses so little resources that it could be run on a 486 processor (actually, I’ve seen someone doing exactly that). It works well with most of the clients I’ve tried (on iOS). And the dev is just a super friendly and responsive person.