Just trimmed my site's build/test/deploy pipeline's lifecycle from 10 minutes to about 5 minutes. A fair saving but still not as speedy as I want.
My next job is to see whether I can cache the images on my own infra running a GitLab-runner, but I seem to be having some difficulty getting it running with a Unix file socket rather than a TCP socket - a shame because in the past the GitLab-runner has worked literally out of the box