A bit of a n00b question, but how do I search for the package that provides a particular command? Ex. iperf3?

pkgfile is the best search tool, make sure the database is updated

sudo pkgfile -u

then search with:

pkgfile partial_name

In this case you will see your search will come up empty, no such package in the KaOS repo.

Thank you! So for example, 'iperf' shows up in main/bash-completion, but 'iperf3' is empty. I'm assuming the iperf3 utility is not in the KaOS repo then, right?