Home Server GitOps-Lite on Nothing but GitHub and Docker

I run a decent little stack of services out of my house. Whisper (an end-to-end encrypted secret sharing app), bar_keep, archivist, a few other side projects, plus the base infra that ties them together: Traefik, shared networks, a handful of private stacks. For a while every deploy meant SSHing into the server, and I was pretty tired of it. What I actually wanted was something like the popular GitOps tools a lot of folks run on top of Kubernetes. Push code, get a deploy, done. No shell, no secr