You can use GitSocial to mirror to your own bucket for situations like this:
`gitsocial mirror <a href="https://gitlab.com/owner/repo" rel="nofollow">https://gitlab.com/owner/repo s3://s3.example.com/mybucket/repo`
delf · · focus · HN ↗
<a href="https://gitsocial.org/" rel="nofollow">https://gitsocial.org/
PhilippGille · · focus · HN ↗
delf · · focus · HN ↗