Prebuilt CI images can make CI slower than using stock images
The CI base images are built from a repo in https://gitlab.gnome.org/GNOME/tracker-oci-images/
The idea is that the CI logs for Tracker itself are shorter as they don't have lots of package manager output, and the CI jobs are faster as the package manager doesn't need to run.
This is sometimes not true, in it seems that downloading the prebuilt image takes longer than building it on each CI job: !178 (merged)