tmate • Instant terminal sharing

Today I discovered tmate • Instant terminal sharing  while issuing apt-cache search mate terminal. The Debian/Ubuntu repository told me¹ that

tmate provides an instant pairing solution, allowing you to share a terminal with one or several teammates. Together with a voice call, it’s almost like pairing in person. The terminal sharing works by using SSH connections to backend servers maintained by tmate upstream developers; teammates need to be given a randomly-generated token to be able to join a session.

tmate is a modified version of tmux, and uses the same configurations such as keybindings, color schemes etc.

That’s nice and sweet.