Running the instrument locally Linux, macOS and other operating systems This instrument runs entirely locally using a web browser. You only need to: Install a small local web server such as lighttpd, http-server, or any similar solution. Extract the contents of the ZIP file into the server's public document folder. Start the web server. Open a Chromium-based browser and go to: http://localhost It should also work with other modern browsers compatible with WebAudio. No internet connection is required once the instrument has been downloaded.