This tutorial series teaches how to build a real-time logistics application using Strapi as the backend, Angular as the frontend, and PostgreSQL as the database. The first part of this tutorial focuses on setting up the backend with Strapi and PostgreSQL, creating content types, configuring permissions, and creating entries. The second part will cover building the frontend with Angular, integrating a tracking system with Leaflet, and converting the application into a Progressive Web App (PWA).