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


It’s quite different. I’m a programmer and find it substantially better suited to my mental model than FreeCAD. Don’t get me wrong, I respect FreeCAD – even envy it a bit and all the features – but I need to imagine my shapes and describe how they fit together. I spend so much of my free time thinking of equations that product shapes (yay game dev) that it comes pretty naturally.
If you don’t program or prefer a more visual, arguably professional, workflow, you probably won’t like OpenSCAD.