What's the motivation for the name? I get "numbat" to "numerical", but not immediately seeing any connection for bumblebee.

Maybe a more serious question: is anyone using Elixir ML in production? I'm absolutely gobsmacked at the quantity and quality of development effort that's gone into it (and use Livebook daily, though not for ML stuff). It's clearly a major focus for the team. I'm wondering if it's ready for production adoption, and if so, if anyone has used it "in anger" yet.