I'd go take a look at the Suckless stack of software [0]. All of their apps are short enough to read through (one of them) in a single sitting. You can maintain

I'd go take a look at the Suckless stack of software [0]. All of their apps are short enough to read through (one of them) in a single sitting. You can maintain your own branch, and add in features as and when you need them. [0] https://suckless.org/ https://suckless.org/