Babel is a JavaScript compiler started by Sebastian McKenzie in 2015, which allows websites to convert the latest versions of JS to any other version. The team also is a part of the TC39 standardization process through implementing new proposals.

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Tatu Saloranta, better known as the "Cowtowncoder", is a long-time Open Source developer. He has authored and maintains many popular Java OSS libraries, including Jackson JSON library, Woodstox and Aalto XML parsers and Java UUID generator.

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The Pallets organization develops and supports Flask, Jinja, Click, Quart, and other popular Python libraries. These libraries power applications of all sizes around the world.

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Tuist, a Swift-based, open-source tool, streamlines managing large Xcode projects, letting you focus solely on crafting remarkable apps.