This tutorial shows how to use time series data to test home internet speeds using the TIG stack, which includes Telegraf, InfluxDB Cloud Serverless, and Grafana. To start, users need to set up their environment with a free InfluxDB Cloud Serverless account, a free Grafana cloud account, and Telegraf installed on their machine. The process involves creating a Telegraf configuration that collects data from the home internet speed test servers using the Speedtest by Ookla plugin. The data is then sent to InfluxDB Cloud Serverless, where it can be queried and visualized in real-time using Grafana. Users can analyze their internet speeds, identify potential issues, and gain insights into their connection quality.