1. If I pull this, does this means FullPageOS gets builds on github? Should I do anything else?
2. I want to pull this so people can use it, but I am naturally not moving the builds to github actions. Assume you know this, just clarifying,

If you merge this them github will build an image and attach it to the release every time you tag a commit with a version string. It should also be useful as a template for others to do the same (afaik without needing to change anything). If you don't want it to be active then I could drop the push trigger from it, though then people who want to use it will have to add it back.

Also - this won't work on this repo because versions don't start with v
And you need to update the url https://downloads.raspberrypi.org/raspbian_lite_latest

Is it ok to ask of you to comment out?:

on:
  pull_request: {}
  push:
    tags:
      - v*

From there I can try play around with it on another repo

Ok, lets try it

Weird, looks like we got unlucky with a mirror? https://github.com/guysoft/FullPageOS/runs/815514416?check_suite_focus=true

We'll see what the next one does in a couple minutes.

Still fails, in the end we will build our own mirror.

That's very strange. You can try re-running the job without a new commit on the build page: https://github.com/guysoft/FullPageOS/runs/815540216?check_suite_focus=true

I'm not sure what to do about a bad mirror.