Microsoft Open Sources Chakra and Wants to Run Node.js on It
Microsoft intends to add modern diagnostic APIs to ChakraCore, and they are working on Time Travel Debugger, a debugging tool that enables one to step backwards during debugging. This helps with debugging code that contains callbacks. Microsoft has demonstrated the debugger on a Node.js/ChakraCore application that included over 100 modules, running on a Raspberry Pi 2 with Windows 10 IoT. They intend to mature the technology and then open it up.