Hi, does anyone have an example of an image gallery in the app router using a modal route?

Similar to the with-cloudinary example: https://github.com/vercel/next.js/blob/canary/examples/with-cloudinary which is using pages router.

I managed to get it somewhat working, but I still see strange flashes between navigation on the images.
I also had to add an ?modal=true param to avoid animations, I might be doing something wrong in my implementation 🤷