Composite braces for tree diagrams.
Ben Chasny on his playing-card-based hexadic composition system.
A nice guide by @MikeRiethmuller on image manipulation techniques with canvas. It goes through basic (what I've been doing), 32-bit (what I'm going to do now), and shaders (what I'll probably end up trying soon).
From: https://www.madebymike.com.au/writing/canvas-image-manipulation/
I finished Code: The Hidden Language of Computer Software and Hardware this week. It was great. I didn't understand everything about how computer hardware works but it made me a lot more confident that I can understand it.
Computer Lib/Dream Machines: "You can and must understand computers NOW."
From: http://worrydream.com/refs/Nelson-ComputerLibDreamMachines1975.pdf
How I draw figures for my mathematical lecture notes using Inkscape By Gilles Castel.
I really like that i3wm is structured so that (almost) all the default functionality is exposed in the editable config file. It would be interesting to try and set-up one of my canvas drawing tools this way.