I ran across fuse-box and was really impressed how fast the browser would hot reload the page.
fuse-box has some other nice features, and it feels like it would pair really well with nuxt.js.
https://github.com/fuse-box/fuse-box
<!--cmty--><!--cmty_prevent_hook--><div align="right"><sub><em>This question is available on <a href="https://nuxtjs.cmty.io">Nuxt.js</a> community (<a href="https://nuxtjs.cmty.io/nuxt/nuxt.js/issues/c595">#c595</a>)</em></sub></div>