You might like https://craftinginterpreters.com/ https://craftinginterpreters.com/. There used to be a compilers course by Alex Aiken available online which I'

You might like https://craftinginterpreters.com/ https://craftinginterpreters.com/. There used to be a compilers course by Alex Aiken available online which I've found very helpful in getting started. But apparently they've limited access since. https://online.stanford.edu/courses/soe-ycscs1-compilers https://online.stanford.edu/courses/soe-ycscs1-compilers Maybe you can find a mirror of a previous version somewhere. I think a compiler is a nice project because you can start with a very small language, then keep growing it and learn something along the way. Not a one-weekend project, though.