For local development build.sh will update the Docker image, run.sh will start up a Jekyll server.
For "production", the Docker container is built, pushed to Heroku
(heroku container:push builder --app clifff-dot-com-builder), released (heroku container:release builder --app clifff-dot-com-builder) and executed
hourly via free cron scheduler.
To get a production console: heroku run /bin/bash --app clifff-dot-com-builder --type builder