Notification or Beep when a mod is finished installing

[TheMatthew]

This will help the UX as the install process can take several minutes.

A chime like steam (example https://freesound.org/people/nckn/sounds/256113/)

or a notification like gog

import notify2 notify2.init('foo') n = notify2.Notification('foo', 'bar') n.show()

can help

[JadedDragoon]

If os-native notifications are used then you get both and respect user's existing preferences for the display of notifications.