"A comfy corner of the internet..."
Libreddit is a Reddit frontend. Use it to browse Reddit without getting tracked.
Invidious is a YouTube frontend. Use it to browse YouTube without getting tracked.
These services requires an account, which you can create at qam.qwik.space (Tor, I2P).
Gitea is an alternative to Github, Gitlab, etc. We host our own instance, but feel free to use it as well (if you're brave enough).
XMPP is an instant messaging protocol. You can find more info in the article below.
Hedgedoc is an online markdown editor featuring real-time collaboration.