TLDR
Enter a command. For example: vimdiff, pio settings, hexo, phan.

Xephyr

 
A nested X server that runs as an X application. More information: https://manned.org/xserver-xephyr.
 
  • Create a black window with display ID ":2":
     
    Xephyr -br -ac -noreset -screen {{800x600}} {{:2}}
     
  • Start an X application on the new screen:
     
    DISPLAY=:2 {{command_name}}

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