I'll add another +1 for Termux on an android phone. I have a hub that lets me charge my phone and plug a real keyboard into my android device. It (termux) is

I'll add another +1 for Termux on an android phone. I have a hub that lets me charge my phone and plug a real keyboard into my android device. It (termux) is mildly annoying as you don't get to set your own username and you can't ssh into your phone (or maybe you can if you're on a rooted device.) Also, there's no sixel support, so it's somewhat limited as a remote management platform. But I've successfully scp'd remote files to local, then used emacs to modify the files and then scp them back. Git works fine, so you can clone, branch, commit and push if that's your workflow. Make and gcc all work fine, so you can compile other tools (prolog, scheme, node) if you need them. Sbcl should work, but I ran into problems compiling I haven't yet resolved (not sure it isn't related to me monkeying around with local library links) so ymmv. I know python is available via the package system, but I'm not a python person. It IS definitely a terminal oriented experience. If you're looking for something like VSCode, this ain't it.