SailfishOS also came (at least back in the day of the first Jolla Phone and Tablet) with an excellent terminal app and built-in sshd that made it work great with pretty much every Linux command-line and TUI application (only exception was of course those with hardcoded minimum screen size support). Termux for Android is maybe half that good, not as well integrated, but still good enough that I use it every day, much more than I use other apps other than the browser.