Ask HN: What do you use Keras for?

I've seen quite a few tutorials on Keras, primarily for hobbyists learning about Deep Learning and using it for toy models and the like. I've also seen a few libraries and approaches to make pushing Keras/TF models to production, but I don't know what the market penetration of the framework is like or what it is used for in industry or academia.

From what I can gather, the research world has a heavy Tensorflow and PyTorch presence these days, and industry heavily utilizes Tensorflow or the company's own tools (Caffe2, MXNet, CNTK).

Does anybody here use Keras for model building in your company or for academic research tasks? If so, what does your workflow or development setup like?