I see it mentioned that you need EXPO CLI, but for the life of me I cannot see where you get the tool. It just keeps leading me in circles.
expo cli is included in the expo package. when you create a project, expo-cli is installed to your project node_modules.
npx create-expo-app my-app cd my-app npx expo start
Make sure you are using npx as that will install the package locally for you which is the preferred approach now. Previously a global install was required.