The description for the runner in the UI is by default sthg like
"npm_nixos_d0544ed48909" i.e., the name of the attribute.
I wanted to have a more user-friendly description and added a
description to the service.
Seems like gitlab-runner doesn't like having both fields set:
"Cannot use two forms of the same flag: description name"
so I used one or the other.
c1e318d0c5