jgart 写道：
> peek, needs either ffmpeg or gnome shell to be present.
> How should I handle that in Guix?

Ideally: let peek pop up the window asking the user to install 
ffmpeg.

Then the user installs ffmpeg only if it's actually needed, and 
isn't ‘forced’ to pay the cost if it's not.

Does it not show that window on a foreign distribution?

Kind regards,

T G-R