[bhaprayan]

There's many tools I've picked up over the years (sometimes on as needed basis, sometimes just for fun). The latter has been way more rewarding though in retrospect :) Instead of enumerating all of them, I think this course page does a great job of collating them by topic: https://missing.csail.mit.edu/

[kanyethegreat]

This is awesome. I remember stumbling upon it at some point, but totally forgot about it! Gonna definitely check it out.