MONAI (Medical Open Network for AI) is a freely available, community-supported, open-source PyTorch-based framework for deep learning in medical imaging. It provides domain-optimized foundational capabilities for developing medical imaging training workflows in a native PyTorch paradigm. On September 30 - October 2, in collaboration with the MICCAI Educational Initiative, we brought the first-ever MONAI Bootcamp to medical imaging researchers, with training modules, an architectural deep dive, and an open challenge.