Nuvola can set up a local HTTP server with an Engine.io socket, which various clients can then use to control Nuvola within a local network. Nuvola ships with a simple built-in web-based client, which you can load in a web browser on your phone, for example.
To enable Remote Control over HTTP, open Preferences dialog from the Menu button, toggle Remote Control over HTTP on and then click the gear button to adjust Remote Control over HTTP options.
Nuvola Runtime Service Required
To launch a built-in remote control web app, open the preferences of Remote Control over HTTP and click any of the home buttons. You can then open the address in any web browser that can connect to it.