mosh + tmux/screen is a wonderful UX. The lack of an escape key is less critical on a command line, where C-c more reliably does the same thing (and if you're

mosh + tmux/screen is a wonderful UX. The lack of an escape key is less critical on a command line, where C-c more reliably does the same thing (and if you're using vim, try C-[ or remapping the action to `jj` instead of Esc).