For anybody interested in playing around with and hacking on different CI / devops stuff I recently launched <a href="https://boxci.dev" rel="nofollow">https://boxci.dev</a>, which is a distributed CI service where the builds run on your own hardware, via a lightweight runner that just does coordination and runs build shell commands on bare metal, so it's a bit more hackable / flexible than (for instance) GH actions / Gitlab CI.<p>It's free to sign up and play around with it, and I'd love to get the feedback of any HNs who think this could be useful (I basically built it because it's the CI service I want to exist, and I think others might too).