Low level stuff + Assembly

https://dev.to/frosnerd/writing-my-own-boot-loader-3mld

https://dev.to/visheshpatel/how-c-program-stored-in-ram-memory-3773

https://dev.to/quantumsheep/basics-of-multithreading-in-c-4pam

https://nandgame.com/

https://www.nand2tetris.org/

Turing Complete game on Steam

https://www.turingtumble.com/

https://cs.lmu.edu/~ray/notes/nasmtutorial/

https://dev.to/frosnerd/writing-my-own-boot-loader-3mld

https://www.robertwinkler.com/projects/mips_book/mips_book.html#_chapter_0_hello_world

https://asmtutor.com/#lesson1

https://tmewett.com/c-tips/