I use it to run Julia on my phone: https://lee-phillips.org/juliaOnPhone.jpg

Do you have instructions somewhere for getting this to work? I've tried installing julia on termux a few times with no success.

I just downloaded the archive (from the usual Julia downloads page) for ARM on the phone and put a link to the binary in /usr/local/bin — same as on Linux desktop. But I did this in the proot Debian environment.

Ah I see. Even after installing proot Debian I couldn't get juliaup to work, but I'll have to give it a shot manually installing the binary and linking to /usr/local/bin