This application contains a sidekiq runner that is supposed to work on a raspberry pi connected to the office door. This runner executes hardware commands on the GPIO to trigger the door buzzer.
To update the worker, ssh into the pi, cd into the app's folder and execute
git pull
cd ..
./sidekiq
The sidekiq command will reload the config from heroku and then trigger systemd to reload the sidekiq process. To see if everything is working, check http://nerdgeschoss-office.herokuapp.com/sidekiq.