tsconfig.json

{
    "compilerOptions": {
        /* Language and Environment */
        "target": "es5",
        "lib": ["dom", "ES5", "ES2015", "ES2017", "ES2018", "ESNext"],
        "jsx": "react",

        /* Modules */
        "module": "commonjs",
        "moduleResolution": "node",
        "baseUrl": "./src",
        "types": ["jest", "node", "testing-library__jest-dom"],
        "resolveJsonModule": true,

        /* JavaScript Support */
        "allowJs": true,
        "maxNodeModuleJsDepth": 1,

        /* Emit */
        "sourceMap": true,
        "noEmit": true,
        "preserveConstEnums": true,

        /* Interop Constraints */
        "isolatedModules": true,
        "allowSyntheticDefaultImports": true,
        "esModuleInterop": true,
        "forceConsistentCasingInFileNames": true,

        /* Type Checking */
        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "skipLibCheck": true,
        "paths": {
            "@components": ["components"],
            "@components/*": ["components/*"],
            "@theme": ["theme"],
            "@theme/*": ["theme/*"]
        }
    },
    "include": ["src", "types"],
    "exclude": ["node_modules", "build", "coverage"]
}