The document compares several self-hosted Git repository managers: GitLab, BitBucket, GitHub Enterprise, and Gogs. GitLab is an open-source project that provides repository management, issue tracking, wikis, and continuous integration. BitBucket is focused on enterprise teams and offers integration with JIRA and HipChat. GitHub Enterprise brings the features of GitHub.com on-premises. Gogs is lightweight, open source, and easy to install, making it suitable for small startups or installations with low resources. The document provides pros and cons of each option to help determine the best solution depending on needs and budget.