My self-hosted Forgejo runner setup | I do what I can

In this (very long post) I will be demonstrating how I have setup my self-hosted Forgejo runners at home using Docker Compose, Docker-in-Docker and a bonus LXC. To demonstrate with a practical example, I will be building an Ansible Execution environment, to be used in my home lab automation. There will be two versions of it: a single node, and a dual node build. Both will result in the images for two platforms/architectures (AMD64 and ARM64).