Running the container defined in the dockerfile will run a self hosted GitHub runner locally on your machine.

To set up the self hosted runners, create an .env file in the top level directory with the following variables defined

# the current available version
RUNNER_VERSION=2.314.1

GH_OWNER=your github account name
GH_REPOSITORY=your repo
GH_TOKEN=the token provided by GitHub for the repo

Then run the following command

> docker compose build
> docker compose up

Currently the approach does not support workflows running in a different workflow container aka using

runs-on: self-hosted
container:
  image: maven:3-eclipse-temurin-21

The problem is, that the image would be started as a docker in docker which the current dockerfile does not support.