------- Original Message -------
On Friday, November 4th, 2022 at 5:46 AM, Jacob Hrbek <kreyren@rixotstudio.cz> wrote:

kreyren@dreamon ~$ guix shell -CF bash coreutils mesa mesa-utils -- glxgears

substitute: updating substitutes from 'https://substitutes.REDACTED'... 100.0%

0,4 MB will be downloaded

 glew-2.1.0  343KiB                                                                                                  4.0MiB/s 00:00 [##################] 100.0%

 mesa-utils-8.4.0  29KiB                                                                                             3.9MiB/s 00:00 [##################] 100.0%

The following derivation will be built:

  /gnu/store/r81kp1djl75p3c4bzqfjavnk53klqf2j-profile.drv

applying 4 grafts for mesa-utils-8.4.0 ...

building CA certificate bundle...

listing Emacs sub-directories...

building fonts directory...

building directory of Info manuals...

building profile with 5 packages...

Error: couldn't open display (null)

Question: How can i make it to work by showing the glxgears?

-- Jacob "Kreyren" Hrbekil.