[_asummers]

The article addresses how Google is already using GitHub with Kubernetes. Looks like Dart does too from glancing through the GitHub. If you're worried about external services going down, you make an internal mirror. You don't force the whole workflow to go through your system.

[arkadiytehgraet]

Or you just don't use an external service in the first place, minimizing your dependencies, which you arguably should be doing anyway? They are not forcing anyone to go through their system, it is completely your choice to either help the project or not.