Downloads can be found at https://clockworks.live/download
Installation on mac is a simple two step process.
Download the Server zip from the link above.
Drag the App into your Applications folder.
Open System Settings → Login Items & Extensions.
Drag the App from the Applications folder to the Open At Login section to have it start on login.
Installation on windows is a single step process
Download the Server exe from the link above.
Run the installer and wait for it to complete, once complete reboot.