openpilot is an operating system for robotics. Currently, it upgrades the driver assistance system on 300+ supported cars.

Erlang node implemented in Python 3.5+ (Asyncio-based)

DNS server for providing TLS to webservices on local addresses

Backtesting several trading strategy and rank them according their profit return.

Probabilistic Data Structures in Python (originally presented at PyData 2013)

use raw queries and migrate them properly