It’s not mine, but this cheat sheet has been great to reference when learning new languages or coming back to old ones.
FLASHBANG - Warning the sites in light mode, so do keep note.
In regard to what’s available, I’ve included a screenshot of their front page with an overview of the languages and software available.
Haha yup! Had to use it earlier today for some random Vim hotkey, so thought I’d share it.