Not available yet. There is no GitHub import, no issue importer, and no invitation flow.

Copy the git history yourself. Create an empty repository in Kizuna, then push with a personal access token (repo:write). The git username can be anything. The password is the token. Do not put the token in the URL.

git clone --mirror https://github.com/example/repo.git
cd repo.git
git push --mirror https://kizuna.example.com/myadmin/repo.git

SSH keys are not available yet. Use HTTPS.

Issues, pull requests, and GitHub Actions are not imported by this push. They stay on GitHub until you recreate what you need.