I wanted to avoid water propping it because of the tough transition back to soil (and because it would be quite a long cutting, I was worried it might drop leaves). That’s why I wanted to try air layering :)

There are many good replacements, you just need to stop using Github :)

Some examples: Forgejo/Gitea (self-host or hosted eg. codeberg.de), Gitlab (self-host or hosted), Sourcehut (self-host or hosted eg. sr.ht)