Overview

Nividia’s low cost entry level Jetson platform. The Jetson Nano Dev Kit has a Raspberry Pi compatible 40 pin header. A nice link to the GPIO can be found here

Setup

Here’s some setup notes for the Jetson Nano

Install the latest Jetson SD card image from https://developer.nvidia.com/embedded/learn/get-started-jetson-nano-devkit#write to a microSD card. At least a 16GB card is recommended. The download image is 6GB.
The Jetson Nano can draw quite a bit of power if you push it hard. It is recommended to get a decent 4A supply and populate J48 with a shorting jumper. See this excellent post here
The Jetson Nano does not come with wifi and bluetooth. Check out this link here to add a wifi and bluetooth module. Alternatively you can just plug it into ethernet to get network connectivity.
The easiest way to get up and running is to plug in a monitor, keyboard, and mouse. There are directions for headless setup that can be found here and here
To enable SPI check out this link here

Mode0 read and write tested and working
Mode1 write tested and working with the following caveat: spi.NoCS option does not work and returns an error
Another caveat: When attempting to connect to SPI1.0 an error was returned. If you connect to SPI0.0 it works fine on SPI1.

There are multiple places to purchase a Jetson Nano Dev Kit:

The periph authors do not endorse any specific seller. These are only provided for your convenience.