Something I've done before to share a screen with coworkers is to work in tmux and start a web tty service like gotty (https://github.com/yudai/gotty). After you resolve the standard network issues (port visibility and whatnot) you just need to configure it with `tmux attach` as the starting command. tmux already supports shared sessions if multiple terminals attach to the same session, the session window size simply shrinks to the minimum of all clients. If you've established trust then you can use --permit-write with gotty to actually work in the same terminal. Hop into a voice chat and you've got pair programming.