Learn how to install and configure Forgejo, a self-hosted lightweight software forge, on an Ubuntu server using Docker. Follow step-by-step instructions to set up this GitHub alternative, including updating the server, installing Docker Compose, creating a Git user account, configuring permissions, and setting up NGINX as a reverse proxy. Explore the process of creating and running a Docker Compose file, verifying Forgejo's operation, and performing initial configuration. Gain insights into firewall setup, NGINX configuration, and best practices for managing software projects with this comprehensive tutorial.