New comment by lemmi on void-packages repository

https://github.com/void-linux/void-packages/pull/42563#issuecomment-1453308919

Comment:
Sadly we don't have optional dependencies, it would definitely be the right use case here. Maybe upstream could be convinced to display an error or hint that the module needs to be installed and loaded for virtual cam to work. Most we can do is display an install message, but I doubt it has the necessary visibility to justify the added spam.
For the moment I considered this closed. Still, thank your for your effort.