r2 - small and fast 2D opengl renderer written in C
tdaw - tiny and fast header-only audio library for the demoscene
jbi - incredibly minimal and fast C/++ unix build system
dpgtk - easily embeddable C democonfigurator
SimpleNFL - C/C++ header-only wrapper for NightFoxLib
LxDemOWin - Linux "SDL" clone for sizecoding with some nice OpenGL handlers (was written in two hours for a quick project)
QECI - quick and easy imgui project template
uniprofile - quick (and slightly messily written) C++ profiler