[REPORT] kernelnewbies.org is down (502 Bad Gateway)

Hi Rik,

I'm reporting that the KernelNewbies main page is currently unreachable,
returning a 502 Bad Gateway error:

  https://kernelnewbies.org/

The latest archived version (from April 20th) can be found here:

  https://web.archive.org/web/20260000000000*/https://kernelnewbies.org/LinuxChanges

I think it's not an unrelated topic, but the Linux perf wiki had the same
problem a few years ago, so I migrated it to GitHub using the mkdocs
framework. Most wiki formats are quite compatible with Markdown, and it
has served as a stable alternative for the community. This is migrated version
for the perf wiki:

  https://perf.wiki.kernel.org/

The discussion regarding the perf wiki migration can be found here:

  https://lore.kernel.org/linux-perf-users/[email protected]/

Moving to a platform like GitHub (or any other) helps address the issue where
users cannot contribute freely immediately after registration. Currently,
I can invite anyone who wishes to contribute via email, and I also accept pull
requests.

For the perf wiki, we fortunately had a backup repository thanks to
Konstantin:

  https://github.com/mricon/perfwiki

Is there a similar backup repository or a recent data dump available for
kernelnewbies? I think moving to a Git-based workflow with a framework like
mkdocs might be a good way to ensure long-term availability and prevent
future downtime.

Thank you for building such an invaluable resource, it has been a massive
help to the next generation of kernel contributors like me.

Please let me know if there is anything I can do to help. I would be more
than happy to assist in any way I can.

Best regards,
Yunseong