Loading page
bitbucket.org
In short: Bitbucket (bitbucket.org) accepts repo/profile backlink. It is free to submit, takes only a few minutes, and scores 48/100 on our impact ranking (long tail).
Create public repo for embed SDK/example package.
Lower discovery than GitHub; still profile link.
Priority is later, which sets the band. It is free and quick to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.