The highly anticipated React Native project from Facebook has been officially open sourced and released, possibly heralding a sea wave change in mobile UI app development practices.

Facebook says more than 600 people have committed code to React Native’s codebase since the company open-sourced the project at F8 last year.

Developer tools company Deco Software Inc. is closing shop to join Airbnb, leaving its React Native IDE to live on in open source only.