[vivan]

What do you guys recommend as a good way to continue work undisrupted when GitHub goes down? A second remote mirror?

[roblabla]

A second mirror doesn't really help - when github goes down, the code should still be available locally on your computer. The things that become truly available when github dies are all the non-git features: issues, PRs, etc...

There are several ways to work around this, but none are really satisfying.

[cuspycode]

Use self-hosted repos like gitlab or fossil, and then mirror the public parts to github.

[mirekrusin]

Git or fossil mesh.