Yocto on the Jetson Nano?

Hello.

someone has already tried to use Yocto on the Jetson Nano ? I would like to know if it allows to upgrade the kernel from 4.9 to 5 and / or the CUDA libraries from 10 to 11 or 12. Thanks.

No. Forget it. Unless NVidia spends work hours and money on a product that is basically dead you are stuck to what you already have forever.

I believe in some indipendent project,that could be started because the price gap between nano and orin is very large.