I was wondering if there was a program like GNU/screen or tmux that would allow me to attach or detach a session with a running process but would not provide all of the other features such as windows and panes. Ideally the program would be able to run in a dumb terminal (a terminal without clear).
My use case is to use either the shell or the terminal that are built into emacs to run a program and have that program keep running even if emacs crashes. Tmux and screen are incompatible with shell because shell does not support clear. And although they work in the terminal the output is improperly formatted in part because of the bottom bar and also because of the quirks of term-mode.