After yesterday, installing Satis (server for composer packages) jumped almost to the top of my list, been unable to access composer for a big chunk of the day could have been a real problem on the wrong day.

I use Bitbucket for my repo's (with mirrors on my servers) as I actually prefer it (and you can have unlimited repo's < 5 users) so it was a pain to have a dependency on github as well.

Single points of failure suck.