They are free to limit what they allow in their service and we are free to host our own code:

- Forgejo: https://forgejo.org/

- Gitea: https://gitea.com/

- GitLab Community Edition: https://about.gitlab.com/

- OneDev: https://onedev.io/

- Gogs: https://gogs.io/

- Sourcehut: https://sourcehut.org/

- GitBucket: https://gitbucket.github.io/