mosh + {emacs,vim} work pretty well on less-than-perfect links. One thing that I might miss with a local buffer is good syntax checking support (I use "flychec

mosh + {emacs,vim} work pretty well on less-than-perfect links. One thing that I might miss with a local buffer is good syntax checking support (I use "flycheck" in emacs) -- it requires the server's software, and so composing local editing with server-based syntax checking sounds pretty hard to get working well.