I've begun working on doing a setup like this as well. I am in the process of setting up a development environment on Digital Ocean (least powered is fine for m

I've begun working on doing a setup like this as well. I am in the process of setting up a development environment on Digital Ocean (least powered is fine for me), using blink on iOS for its mosh support. I was going to go the vim+tmux route, but I never got into tmux and I happened across Modern Vim by Drew Neil. The book describes how to use nvim's terminal emulator mode and the ability to save sessions. I am hoping this will allow me to just use nvim for coding instead of nvim+tmux. I also intend to have a build flow that pipes it into a server for easy downloading and, if need be, uploading. While I have the first gen iPadPro (works fine for this, of course), it did occur to me how amusing/stupid it is to think of using one of the most advanced consumer mobile devices as a dumb terminal like it was the 1970s.