The EMF Camp event featured a unique online queue system that allowed 2,500 tech/maker enthusiasts to join and wait for control of the EMF Roamer, a quarter-scale wooden Tesla Cybertruck. The system used PHP with a MySQL backend, designed to run on shared hosting, and utilized Vonage's SMS API for sending notifications to users when it's their turn. A queue system was implemented to manage the flow of users, allowing them to join in their web browser or receive an SMS notification. Users could also resume their position by following a link from the SMS. The system included features such as checking user session validity and displaying countdown timers for users waiting at the front of the queue. This concept can be applied to various applications where single-user operation is required, and the "bouncer" script provides additional administrative tools for managing the queue.