Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
React Native - A framework for building native apps with React
Google's Python Class - Assorted educational materials provided by Google.
Deco IDE - Best IDE for building React Native apps
A Byte of Python - A Byte of Python is a Python programming tutorial and learning book that teaches you how to program with the Python programming language.
React Boilerplate - Offline-first, highly scalable foundation for your next app