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About GitHub mirrors

Some open-source projects provide mirrors on in addition to their official repositories, which are hosted elsewhere.

Here are a few prominent repositories that are mirrored on

To set up your own mirror, you can configure a post-receive hook on your official project repository to automatically push commits to a mirror repository on (or GitHub Enterprise).

You can search repositories based on whether they're a mirror. To learn more, see "Searching for repositories."

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