The tutorial explains how to create a basic analytics dashboard using Node, Express, and Cube.js with MongoDB as the database. The final dashboard displays key performance indicators (KPIs) in a pie chart and bar chart, and provides real-time data updates. The tutorial covers the setup of an Express application, embedding Cube.js into it, creating a schema for a tweets table, and building the analytics dashboard using Bootstrap, Chart.js, and Cube.js client. It also discusses alternative setups, such as running Cube.js in serverless mode, and highlights the benefits of using Cube.js over hitting MongoDB directly with SQL queries.