I didn't try this, but maybe Gitlab's partner offer for Google Cloud, which lifts the credit to 500$ might still be working (link to Gitlab's article here [1], direct link here [2]).
If you or anyone else finds out if this is still valid, let us know :)
A good advice is to always use tmux or screen in your ssh session, just in case your ssh connection drops out.
I also use Hacker's Keyboard on Android, but on tablets I sometimes don't find it comfortable when I would like to type with my thumbs. Does anyone know a good alternative/solution for tablets?
Some time ago, I ran into a series of posts where someone used an iPad, a bluetooth keyboard and a Linode server to do work. It's not exactly smartphone-"have everything in your pocket" purism, but it's close enough.
If you or anyone else finds out if this is still valid, let us know :)
[1] https://about.gitlab.com/2018/04/05/gke-gitlab-integration/ [2] https://cloud.google.com/partners/partnercredit/?PCN=a0n6000...