Create a new Next app
If you don't already have Next app to test with, then you will need to create one. Do this by running the following command (You can see the full guide for creating a Next app here):
npx create-next-app my-slicemachine-project
yarn create-next-app my-slicemachine-project
If this NPX command isn't recognised then you can learn how to install NPX here.
Then cd in to the root of your project...