Thanks for taking a look.
1) GPU acceleration and AWS VPC deployments are only available in the private beta (free tier is hosted on our private infrastructure). Apply here and we can set up a meeting with you asap: https://modelzoo.typeform.com/to/Y8U9Lw.
2) We've started with TensorFlow and Hugging Face Transformers. We're currently working on scikit-learn and PyTorch support (via https://github.com/PyTorchLightning/pytorch-lightning). What kind of frameworks do you use?