This seems useful for prototyping and quick GUIs. Usually for one-off apps I end up creating a local http server on some port then pop up the browser to view it

This seems useful for prototyping and quick GUIs. Usually for one-off apps I end up creating a local http server on some port then pop up the browser to view it. Before I know it, I end up serving a few different ports and losing tabs... Being able to pack each script up complete with GUI - without a lot of effort or huge dependencies - seems like it might be convenient.