Or just have them use ssh. Every popular OS besides android (that's OSX, windows, GNU/Linux, iOS, all the BSDs) ship with an ssh client (almost always openssh.)

Or just have them use ssh. Every popular OS besides android (that's OSX, windows, GNU/Linux, iOS, all the BSDs) ship with an ssh client (almost always openssh.) It would be nice if they all came with a VTE that worked over bluetooth. Windows used to come with it's own VTE for dialing modems so obviously users can handle it.