Starting journey with OpenCV and Jetson in C++

I want to start my journey with OpenCV (C++) and the Jetson Nano.
I installed Jetpack 5.1.1. That has already OpenCV installed, right?
Does it also automatically use the GPU when possible?

Is there a good tutorial to start with OpenCV in C++ on a Jetson?
(like how to display output on the Jetson video output and how to read in the camera connected to the USB port)

The latest JetPack to support Jetson Nano is JetPack 4.6.3.
You should start from this version, and Yes, it has OpenCV installed.

When it comes to 4.6.x JetPack, I don’t think so.
You may build OpenCV for GPU again by yourself.

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