tsconfig.build.json

{
    "compilerOptions": {
        "allowJs": true,
        "allowSyntheticDefaultImports": true,
        "alwaysStrict": true,
        "declaration": true,
        "esModuleInterop": true,
        "importHelpers": true,
        "jsx": "react-jsx",
        "lib": ["dom", "dom.iterable", "esnext"],
        "moduleResolution": "nodenext",
        "noFallthroughCasesInSwitch": false,
        "noImplicitAny": false,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noUnusedLocals": false,
        "noUnusedParameters": false,
        "pretty": true,
        "sourceMap": true,
        "strict": true,
        "strictFunctionTypes": true,
        "strictNullChecks": true,
        "strictPropertyInitialization": true,
        "stripInternal": true,
        "target": "ESNext",
        "downlevelIteration": true,
        "skipLibCheck": true,
        "outDir": "lib"
    },
    "exclude": ["**/node_modules/**", "**/lib/**"]
}