I need to quench my thirst for knowledge and learn something new just for the sake of it.
I’ve already learned:
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Equations and pivot tables in Excel
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Vector graphics in Inkscape
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Music mixing in rekordbox
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Personal VPN on a raspberry pi 4 with OpenVPN
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LAMP stack web hosting
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Streaming & video capture with OBS
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Manual & automatic backups with FreeFileSync
Things I’m open to:
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FOSS (even beta) or free-as-in-beer software
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A high or low learning curve
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Tools for niche fields that I’d otherwise have no reason to learn


Came here to say the same thing.
Krita is a fantastic image editor.
The ability to script it with Python is a huge plus. I’ve created posters by having it read files from a directory and place images precisely spaced, etc.
Krita is a fantastic name for a KDE drawing app if you speak Swedish. Krita means crayon, and traditionally KDE apps were prefixed with a “k”, also Rita means to draw.