What are your favorite free/open source pieces of software?

What are your favorite free/open source pieces of software?

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twitter.com/NSFWRedditImage

Yalp store :^)

8ch

Krita
GNU Guix and GNU GuixSD
Bash
LaTeX
Groff
Wicd
Wget
Curl
GNU Emacs
OpenMW
Quod Libet

twm

Dolphin and muslC

KMSpico

Bitcoin, BitTorrent, GNU Octave, scuttleButt, Urbit

sqlite3
fossil (wish I used it more)
rsync
GNU find
ssh
Emacs (I don't like spacemacs, but evil-mode and an otherwise normal Emacs is better than vim. Fight me.)

As software, it's extremely terrible.