Regular Expression Matching Can Be Simple And Fast: http://swtch.com/~rsc/regexp/regexp1.html

OpenGL Text Rendering with Freetype: http://en.wikibooks.org/wiki/OpenGL_Programming/Modern_OpenGL_Tutorial_Text_Rendering_01

All about thread-local storage: https://maskray.me/blog/2021-02-14-all-about-thread-local-storage