tsconfig.json

{
  "compilerOptions": {
    "baseUrl": "src",
    "paths": {
      "@/*": ["*"]
    },
    "target": "ES2020",
    "useDefineForClassFields": true,
    "lib": ["ESNext", "dom", "dom.iterable", "ScriptHost"],
    "module": "ESNext",
    "skipLibCheck": true,

    /* Bundler mode */
    "moduleResolution": "Bundler",
    "allowImportingTsExtensions": true,
    "isolatedModules": true,
    "moduleDetection": "force",
    "rootDir": "./src",
    "outDir": "./lib",
    "declarationDir": "./lib",
    "tsBuildInfoFile": "./build/tsconfig.tsbuildinfo",
    "noEmit": false,
    "declaration": true,
    "emitDeclarationOnly": true,
    "jsx": "react-jsx",

    /* Linting */
    "strict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noFallthroughCasesInSwitch": true,
  },
  "include": ["src"],
  "exclude": ["node_modules"]
}