Devsync's VS Code extension. Sets up a WebSocket server (by default on port 9615) to connect to the Devsync Chrome extension. More info about Devsync itself can be found here.
Starting the extension
You can either manually start the extension by invoking the "Devsync: Start" e.g. devsync.start command from the command palette which you can trigger by pressing Ctrl+Shift+P or through the "View" menu.
If you don't want to keep doing this every time you open your workspace you can add an empty .devsync file to your project root. VS Code will detect this upon launch and activate this extension for you.