Termux is the only thing making Android nerd-useful and Google could make it useless at any time by just tweaking some permissions (e.g. come up with a few more ways to restrict app access to the file-sysye m). I don't want a phone without convenient ssh or rsync support (or git or fossil), or having to find some app to use instead of all the already existing command-line tools that Termux provides.

It is good enough that I am not in a hurry to try to go back to use some more open linux-based phone again, but definitely held back by not being allowed to be better integrated in the OS.