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


There are a lot of newer node-based 2D editors (covering both vector and raster) like Graphite and PixiEditor. I haven’t tried these… still wondering if any could easily do stuff like SDF textures or simpler mesh creation (2D workflow, part/face vertex color, maybe 3D via extrude/revolve).
There’s also Wick Editor for a potential spiritual successor to Flash.