Coding

Data-Oriented Design - Data-Oriented Design by Richard Fabian is the single best programming book of all time.

Void Linux - The best and most minimal linux distro out there.

suckless - Goated software for linux wiht a great philosophy made in Germany.

Handmade Network - The Handmade community.

floooh/sokol - Minimal C headers for graphics, os, etc.

floooh's Brain Dump - floooh's programming blog, not very active but extremly informative.

nothings/stb - The king of minimal C headers.

ColleagueRiley/RGFW - Single header window and OS library like GLFW.

Learn OpenGL - Learn OpenGL

Shadertoy - Great website to test, develop and find shaders.