tsconfig.json

{
  "compilerOptions": {
    //
    "target": "ES2019",
    "module": "commonjs",
    "lib": ["ESNext", "DOM"],
    "declaration": true,
    "declarationMap": false,
    "jsx": "react",

    /* Strict Type-Checking Options */
    "strict": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,

    /* Additional Checks */
    "noUnusedLocals": false, // ensured by eslint, should not block compilation
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,

    /* Disabled on purpose (handled by ESLint, should not block compilation) */
    "noUnusedParameters": false,

    /* Module Resolution Options */
    "moduleResolution": "node",
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "isolatedModules": true,

    /* Advanced Options */
    "resolveJsonModule": true,
    "skipLibCheck": true, // @types/webpack and webpack/types.d.ts are not the same thing

    /* Use tslib */
    "importHelpers": true,
    "noEmitHelpers": true,

    "outDir": "./lib"
  },
  "exclude": ["node_modules", "**/__tests__/**/*", "**/lib/**/*"]
}