Gitea
Gitea is a lightweight, self-hosted Git forge: repositories, issues, pull requests, packages, and built-in Actions for CI/CD. Teams run it on their own VMs or Kubernetes instead of (or alongside) GitHub/GitLab. Common issues include clone/auth failures, Actions runners offline, webhook delivery problems, disk full under the data directory, and database or reverse-proxy misconfiguration.
Practice scenarios
Hands-on Gitea scenarios on live Linux VMs: gitea