I’ve recently managed to set it up and get it working. Currently I got the backend doing typo3 stuff, where I create content blocks and fill up the content. And a Nuxt 3 frontend where I create those components for the content blocks. The headless typo3 + nuxt Module work great together. Since I’m really new to typo3 I am not sure if this is the ideal setup, but at least it works. I also had massive issues with CORS and only fixed it after many hours of bashing my head against the keyboard. In my opinion, fixing the CORS issue should be the nr 1 priority in the documentation. The devs probably expect the average beginner to be a backend god or something.

If you still need help, let me know. I could prepare a small starter setup which you could clone.