Official Tint - Node.js + Blink
Tint is a runtime based on node.js, chromium (specifically blink) and node-webkit enhanced with support for creating feature full MacOSX and Windows applications with native interfaces. All with Javascript, HTML and CSS.
How to Build
If you have not purchased a license you'll not be able to get the sources for the compiler and SDK. Based on node-webkit, chromium (blink), v8 and other open source projects.