The author created a system to track Fortnite player performance using InfluxDB, Telegraf, and Python. The system consists of three main components: data gathering, dashboards, and alerting. The author used the InfluxDB template for Fortnite, which includes pre-built dashboards and query variables. The system can be customized to track specific players or teams, and alerts can be sent when a player wins a match. The author provides a step-by-step guide on how to set up the system, including installing Telegraf, Python, and InfluxDB, as well as configuring the system for data gathering and alerting.