hewlettpackard/swarm-learning ? reverse-engineered prompt

Build me a simplified Python library for decentralized, privacy preserving machine learning that works like the README describes.

I want a system where multiple training nodes can collaborate without sharing raw data, and only model updates or learnings get exchanged through a blockchain backed coordination layer. Include the main pieces, the learning node, the network node, a command line tool to monitor and manage runs, and a basic web style admin view if it makes sense. Make it support running a simple MNIST example and a Hugging Face fine tuning example, with a callback style API that can be added to an existing Keras, PyTorch, or Hugging Face training script.

Use containers where needed, keep security in mind with certificate based communication, and make the setup and examples easy to follow. If you need to look up current docs or best practices online, go ahead.