Been awhile since I saw a thread like this and they’re always good for at least one or two things I’ve never heard of before. Bonus points if the software is open source and cross platform. Extra bonus points if you link to where we can see it/get it.
My contribution: Destiny which is an anonymous, P2P, E2EE file sharing app - its basically a GUI for a Magic Wormhole implementation. Works on Linux (tarball or appimage), Win, Mac, Android (inc f-droid) and iOS. Only downside is it’s not been updated for 2 years.
sl is a classic command line program for something harmlessly pointless
calibre for digital library software (cataloging books/docs/articles)
Comic book reader, it’s a cbz/CBR comic book archive reader that tries to do the panel/smart auto zoom that used to be a part of comixology until Amazon bought it to kill it as competition to their shitty books app
I donated to calibre, makes my eBook viable.