(Solved) I would like a small laptop to use to log medical data (Weight, Blood Pressure, etc) as I gather it. I need it to be small like 10'. it can be low power because I will probably use it only CLI, no GUI, but I need it to be inexpensive. ARM-based is ok, as long as I can SSH into my desktop machine.
Use Termux, you need:
That's my setup to play tabletop rpg (DND5E) for a couple of years, all CLI using any text editor you like with markdown. I use: tmux, vis.
In your case: SC-IM, visidata, any text editor.
With Termux you can use packages from repo or from other distros with
proot-distro, like: Alpine, Avoid, Debian, Arch, Fedora, Ubuntu.