Chalk is an OSS library that provides an intuitive solution for implementing colors and styles to your command-line input. Chalks has over 50 million weekly downloads on npmjs and uses Stakes Social to receive funding from their supporters. Sindre Sorhus, Chalk's creator, is a strong advocate for OSS and is a full time maintainer on more than a 1,000 OSS projects.
Vyper, which was originally conceived by Vitalik Buterin, is a Python-like language for writing EVM smart contracts with an emphasis in the language’s design on readability and audibility. Vyper’s smart contact language is used in Curve Finance and Uniswap V1. Currently, Vyper has over 100 maintainers supporting the project’s development.