What is ManifoldJS
The example John Shewchuk showed in the Build Day2 Keynote was a fictional demo app called Shiftr which lets developers vote on developer frameworks.
“ManifoldJS http:/www.samplesite.com” and ManifoldJS generated projects for Chrome, iOS, Android, Windows 8.1 and Windows 10.
He then loaded the Android solution via Android App Studio and fired up the Android Emulator which ran the app without any additional code changes.
So the demo clearly demonstrated that with ManifoldJS, developers can simply create the standard manifest, and ManifoldJS creates the apps for the different platforms and devices with minimal intervention.