&gt; For example Linux, hosted on Github, (<a href="https:&#x2F;&#x2F;github.com&#x2F;torvalds&#x2F;linux&#x2F;commits&#x2F;master" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;torvalds&#x2F;linux&#x2F;commits&#x2F;master</a>) is also mirrored and hosted on kernel.org (<a href="https:&#x2F;&#x2F;git.kernel.org&#x2F;cgit&#x2F;" rel="nofollow">https:&#x2F;&#x2F;git.kernel.org&#x2F;cgit&#x2F;</a>).<p>It&#x27;s the opposite: Linux is hosted on kernel.org, and the mirror on github.com is just something that was created during a kernel.org outage. The canonical address is the kernel.org one.<p>(The Linux repository on kernel.org, by the way, is one of the oldest git repositories; IIRC, it was created when git was only a few weeks old.)