Oh thanks for mentioning EternalTerminal. I should add it to the comparison section in the README. It looks like it is similar to mosh in that it does stuff at the network level whereas all these other tools are purely remote-machine side programs, but it seems like it is a bit simpler than mosh. From a scan of their docs it sounds like they have the local terminal do all the rendering the way `shpool` does and don't try to muck about with any sort of predictive rendering the way mosh does. Does that sound right to anyone knows it well?
I am currently using mosh and tmux together, it does seem like there's a lot duplication. It works great though, and mosh has actual roaming which is good for subways, VPN changes, etc.