$ git clone https://github.com/mlibrary/mattlach-phineas-testing-actions
$ cd mattlach-phineas-testing-actions
$ bundle install
$ bundle exec rackup
$ docker run -p 9292:9292 \
docker.pkg.github.com/mlibrary/mattlach-phineas-testing-actions/web:latest
Note: if the above complains about credentials, you probably need to create a personal access token and then authenticate with docker:
$ cat ~/YOUR_GITHUB_TOKEN | docker login https://docker.pkg.github.com \
-u YOUR_GITHUB_USERNAME --password-stdin
This is a public repo, so, if you have a GitHub account, you can run this docker image.
Either way, you can view the results at http://localhost:9292/.