Nuxt.js is an open source JavaScript framework you can use to build a frontend for your Headless Wagtail project. Several high profile sites run a combination of Wagtail and Nuxt.js, including NASA's Jet Propulsion Laboratory. While there is currently no specific support for Nuxt.js, Wagtail's built-in API makes this a straightforward option. Several projects are available on GitHub for inspiration and exploration.