This demo site only demonstrates only the Google Sign-In and the Packagist API functionality due to Google Developer Console supporting only domains and the 127.0.0.1 IP address.
The rest of the site is available at http://172.20.2.203:8000/login only with the SPŠ VPN.
The other version sometimes crashes even when not in use, so please contact me at kohouma21@sps-prosek.cz and I will restart it.