real easy indeed x)

at least Arch (and derivatives) and Guix. probably a lot more of them

it's urxvt though

You can call it recursively on .config (for instance), and watch for specific events (creation, deletion, modification, etc). But I expect this to be expensive on really large folders and I'd avoid it if I could.

Btw it's syscalls iirc (inotify-tools just exposes them)