Whether to enable Starship's transient prompt feature in fish shells. After a command has been entered, Starship replaces the usual prompt with the terminal output of the commands defined in the programs.starship.transientPrompt.left and programs.starship.transientPrompt.right options.
This option only works with fish, as bash requires a custom configuration involving Ble.sh, which can be enabled with programs.bash.blesh.enable, but not configured using NixOS .