If you enjoy researching new topics and writing about them, there's always Wikipedia. People often say Wikipedia is bad because anyone can edit it. On the contrary, I think that's what makes it good, and you can make it even better.
If I missed anything (and I'm sure I did), comment below!
@flyingpimonster If you use a Linux/BSD distribution, start packaging the software you otherwise need to compile manually. In case of Arch you can push your packages to the AUR and learn about how to write a PKGBUILD on the ArchWiki.
@flyingpimonster Apropos ArchWiki. Consider creating an account on your distribution’s wiki, so that you can quickly make an edit the next time some information is missing etc.
@flyingpimonster I still have a hard time getting into this. Do you have some extra tips?
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.