Download mplayer from https://sourceforge.net/projects/mplayerwin/ and add the directory to your system PATH
Download any version you want from https://nodejs.org/
Rename config.json.dist to config.json and give your appointments a name, add the URL for each appointment and then specifiy a bookedPhrase, which is the phrase the bot should look for to determine if an appointment is fully booked. If the bookedPhrase does not appear on URL page, the bot assumes there is at least one available appointment.
Open a command prompt and execute npm install
Open a command prompt and execute npm start