An in-house application that we (I) developed in order to handle game balancing, queuing, and overall network state for a multi-LB Minecraft network. The application's name is MasterControl, and it's architecture and design (or lack thereof, it was literally the first program I ever wrote) has been the source of many headaches over the last few years. Had I known years back that we would see the kind of player numbers that we have this year, we 100% would have completely rewritten it into our modern microservice architecture.