Why do I need a package from the AUR called 'jack'?

The package ‘jack’ is from the AUR and is described:

a low-latency audio server

I haven’t installed any AUR packages, but it is saying this package is:

installed as a dependency for another package

I am also being asked to trust a random PGP key from:


Can I trust this PGP key and do I need ‘jack’?

You can remove jack and install jack2 from official repos. jack2 already provides jack so you can remove the AUR one.


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