In the first half of 2020, Pysa detected 44% of all security bugs in Instagram's server-side Python code.

An open source project built with Python and a complete disregard for common sense can render an ASCII Instagram feed in the terminal.

By making the Cinder project publicly available, the company wants to open conversation about upstreaming its performance optimizations to standard Python.

Cinder is Meta's performance-oriented version of Python that allows Instagram to run at global scale, while Pyre is a performant type-checker used by thousands of Python developers in Meta.