Hi @Dunce-2045,
The team is evaluating other alternatives and some work is in progress; however, right now, GitHub and Azure DevOps are the only deployment providers currently supported. I can't provide a timetable for when additional provider support will be added.
EDIT: 2022-02-02
GitHub repos support an OOB experience. For other repositories such as Azure DevOps, BitBucket, you can leverage the deployment token for use in any deployment pipeline. The team is working to bring more of these integrated experiences into the fold but for now, below are some tutorial workarounds.