NixOS containers [video]

Things are moving quickly so I don't think anyone can blame you for not keeping up, but Docker has moved to a driver-based model and LXC is not any longer the default execution driver -- new users of Docker will by default be exposed to the new "native" execution driver, along with BTRFS storage drivers instead of the old AUFS storage.

I am one of those weird people running Docker on an i386 system which is not supported, and surprise, I had to revert my configuration to use the LXC drivers, since the Native drivers are actually very new and apparently don't target any i386 support at all.