[seirl]

If you urgently need to retrieve a piece of software, it's likely archived in Software Heritage: http://archive.softwareheritage.org/

[davegauer]

This is fantastic! It also has some projects I thought had been lost to the mists of time when Bitbucket stopped hosting Mercurial repos.

[withinboredom]

I ended up here because automated cluster deployments failed trying to download releases from GitHub... I wonder if that software is served there and I can update the URLs before GitHub fixes their issues :)