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


I know you said software, but I would like to suggest a musical instrument. They still require learning a new language and typically provide a huge level of self satisfaction. A cheap keyboard or guitar can provide literally thousands of hours of study.
You can combine the two with something like Overtone (programmable synth) or similar
Take up the synth, but using software on a computer instead of a keyboard. Learn how to write MIDI. 😌
Or get a keyboard (or digital piano), but hook it up to your computer via MIDI and then compose music with it.
It’s a lot nicer using a real keyboard than trying to input notes with a mouse.
I usually used the computer keyboard when I messed with that stuff cuz I couldn’t get a real one back then, just so I could still feel somewhat like playing a piano. 🤣
The world needs more “tracker tunes” :D