[dolfins]

I use navi: https://github.com/denisidoro/navi

> navi allows you to browse through cheatsheets (that you may write yourself or download from maintainers) and execute commands. Suggested values for arguments are dynamically displayed in a list.

It also lets you use cheatsheets from tldr and cheat.sh from it (besides your own cheatsheets). I've started to mostly just maintain my own, copying what I find most useful from those repositories, though.