Explore the development of a fast, safe Python module for JSON encoding and decoding using Rust in this 36-minute conference talk. Discover how Matthias Endler unexpectedly incorporated Rust code during a Python Hackathon in Düsseldorf, creating a module that passes most of the Python test suite for JSON. Learn about the benefits of using Rust to optimize tasks like parsing file formats, and gain insights into the project's evolution from a side endeavor to a significant development. Delve into the theory behind the implementation, understand the reasons for choosing Rust, and examine the module's performance. Get an overview of the code structure, learn how to run it, and participate in a Q&A session to deepen your understanding of this innovative approach to JSON processing in Python.