Inception
github.com
github.com
In that blog piece it was more a reference to the recursive nature that produces that "deepdream"-style artwork. The code for that is available here: https://github.com/google/deepdream/
I have noticed that they seem to ship a lot of their NN experiments using Caffe (and now Caffe2?). However to some extent this might be because iPython gives you such a nice environment for demo systems.
DeepDream is Caffe. This uses Caffe2[2]
I actually worked it out: you just set the path to Caffe2 in the python code. It works really (really!) well.