Step 1 - Requirements
If you have not hacked your Switch in any capacity, and are running completely stock then you should start by reading and following these directions. They cover the basics of what you will need in order to run ReiNX on your console.
Step 2 - Download and Install
If you're familiar with entering RCM Mode and simply want to setup your SD card for use with ReiNX, this is the step for you.
Step 3 - Post-Installation
Once you have your console running ReiNX, we recommend performing a number of steps to ensure it will stay in CFW, along with preventative measures for the safety of your console. If you haven't yet performed these steps, please go to this step.