I keep local backups of everything, so restoring the files is trivial. In the git repo, I have instructions on how to set things up: what packages to install, where to place certain config files and what to put in them. You could use containers to make it even easier, but I haven’t found the need for it yet.
I mostly use AWS. I have about five different accounts going and I delete/remake them each time the free tier runs out.
Writing with this thing sounds difficult because most of us write with our fingers. Proper writing technique is all arms since that allows you to write much more without fatigue. So as long as your elbows and shoulders are intact, you can just duct tape a pen to your stump and write just as well as you can with a hand. Think of writing on a chalkboard, but scale it down to a piece of paper.
Oh god, imagine having to give birth every day for the rest of eternity.