Vite will add live reloading to HTML it serves: https://vitejs.dev/ It even goes further with some supported frameworks and will do hot module replacement which is like live reloading but doesn't reload the full page and just injects the changed components (faster more instant updates). It'll live reload CSS, images, etc. too.
If vite seems a little too complex browsersync will do nice life reloading for all HTML it serves too: https://browsersync.io/
Interesting. I wonder how difficult it would be to bundle these features to work across devices like WorldWideWeb.app. If people were okay with a fairly opinionated workflow, you could offer some cool features.
You’d run into the same issues as Create React App for more able users, but you might not encounter that as much with the type of people who would want this.
Edit: also have to say I love vite. Such awesome work being done by those devs
If vite seems a little too complex browsersync will do nice life reloading for all HTML it serves too: https://browsersync.io/