

A dedicated Forgejo instance f.example.com.
For a small set of trusted “base” images (e.g. docker.io/alpine and docker.io/debian): A Forgejo Action on separate small runner, scheduled on cron to sync images to f.example.com/dockerio/ using skopeo copy.
Then all other runners have their docker/podman configuration changed to use that internal forgejo container registry instead of docker.io.
Other images are built from source in the Forgejo Actions CI. Not everything needs to be (or even should) be fully automated right off. You can keep some workflows manual while starting out and then increase automation as you tighten up your setup and get more confident in it. Follow the usual best practices around security and keep permissions scoped, giving them out only as needed.
Git repos are mirrored as Forgejo repo mirrors, forked if relevant, then built with Forgejo Actions and published to f.example.com/whatever/. Rarely but sometimes is it worth spending time on reusing existing Github Workflows from upstreams. More often I find it easier to just reuse my own workflows.
This way, runners can be kept fully offline and built by only accessing internal resources:
- apt/apk repo mirror or proxy
- synced base container images
- synced git sources
Same idea for npm or pypi packages etc.
Set up renovate1 and iterate on its configuration to reduce insanity. Look in forgejo and codeberg infra repos for examples of how to automate rebasing of forked repo onto mirrors.
I would previously achieve the same thing by wiring together more targeted services and that’s still viable but Forgejo makes it easy if you want it all in one box. Just add TLS.
1: Or anyone have anything better that’s straightforward to integrate? I’m not a huge fan of all the npm modules it pulls in or its github-centric perspective. Giving the same treatment to renovate itself here was a little bit more effort and digging than I think should really be necessary.



Let’s not forget that Win7 was almost 25% as responsive as Win2k3, which could even hold a candle to GNOME.