From Bas van Dijk:
To understand these things I would recommend using nix-repl:
$ nix-repl
Welcome to Nix version 1.11.2. Type :? for help.
| Byobu Commands | |
| ============== | |
| byobu Screen manager | |
| Level 0 Commands (Quick Start) | |
| ------------------------------ | |
| <F2> Create a new window |