tsconfig.json

{
	"compilerOptions": {		
    // Target latest version of ECMAScript.
		"target": "esnext",

    // Make sure we're not pulling types from external projects.
		"typeRoots": [
			"./typings",
			"./node_modules/@types",
      "src/custom.d.ts",
		],
		
    // Search under node_modules for non-relative imports.
		"moduleResolution": "node",
		
		"jsx": "react-jsx",

		// Temporary for resolving the test data json, remove when moving to using the API
		"resolveJsonModule": true,

		"jsxImportSource": "@emotion/react",
    
    // Enable strictest settings like strictNullChecks & noImplicitAny.
		"strict": true,
		
    // Import non-ES modules as default imports.
		"esModuleInterop": true,
		
    // Skip type checking of declaration files because some libraries define two copies of the same type in an inconsistent way
		"skipLibCheck": true,
		"module": "esnext",		
	},
}