Pushing (from GoGS) with `post-receive` (to a mirror)

I have a GoGS server for my work. I want to back it up off-site to our GitLab instance. According to a document I read this should be possible using post-receive hooks. Follow me on this magical adventure to git-enlightenment. I’m doing all of this by editing my post-receive hook and then force-pushing a nonsense commit to kick git. Pre-Work Digging around in the GoGS repository settings turned up a panel to edit the hooks.
Pi3 nGinx Reverse Proxy

Pi3 nGinx Reverse Proxy

So … you’ve got a Pi3 running as a Docker host with some services that you want your buddies to have access to. You could try and get them to SSH into your home network; just like you could type all your programs with a touchscreen. I’m going to use nGinx to setup a reverse-proxy from my real-Pi3 to various Docker containers based on URL rewriting. I’m doing something else (of course) I’m setting up (what I call) name-based-virtual-hosting.
GoGS on a Pi3 (via Docker)

GoGS on a Pi3 (via Docker)

I’ve been assembling a “full stack”1 for development that runs on my Pi3. This is all happening inside of Docker containers which made cleanup redonkulously easy. Today I was looking at a source code management system; something of a “my own GitHub” which I can run on my own network. We have GitLab at work; so I wanted something different … also; the authors don’t suggest using a Pi3 for “real.