He's using tramp to copy an auth key to the remote system, but then using that to allow the remote emacsclient to talk back to the host. Has some caveats, but it's essentially the single daemon, many remote clients approach?
He's using tramp to copy an auth key to the remote system, but then using that to allow the remote emacsclient to talk back to the host. Has some caveats, but it's essentially the single daemon, many remote clients approach?