I'm not sure whether you're looking for just an idea for a project or an actual walkthrough. But either way this index of "Build your own X" writeups should be

I'm not sure whether you're looking for just an idea for a project or an actual walkthrough. But either way this index of "Build your own X" writeups should be useful: https://github.com/danistefanovic/build-your-own-x https://github.com/danistefanovic/build-your-own-x Ideas include building a Git, shell, search engine, and of course compiler/programming language.