tsconfig.json

{
  "compilerOptions": {
    "target": "esnext",
    "module": "nodenext",
    "lib": [
      "DOM",
      "ESNext"
    ],
    "importHelpers": true,
    "outDir": "dist",
    // output .d.ts declaration files for consumers
    "declaration": true,
    // stricter type-checking for stronger correctness. Recommended by TS
    "strict": true,
    // linter checks for common issues
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    // noUnused* overlap with @typescript-eslint/no-unused-vars, can disable if duplicative
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    // use Node's module resolution algorithm, instead of the legacy TS one
    "moduleResolution": "nodenext",
    // transpile JSX to React.createElement
    "jsx": "react-jsx",
    // allow plain JSON files to be imported as modules
    "resolveJsonModule": true,
    // interop between ESM and CJS modules. Recommended by TS
    "esModuleInterop": true,
    // significant perf increase by skipping checking .d.ts files, particularly those in node_modules. Recommended by TS
    "skipLibCheck": true,
    // error out if import and file system have a casing mismatch. Recommended by TS
    "forceConsistentCasingInFileNames": true,
    // ensure that each file can be safely transpiled by babel (etc.) without relying on other imports
    "isolatedModules": true,
    "downlevelIteration": false,
    "allowSyntheticDefaultImports": true,
    "emitDeclarationOnly": true,
    "paths": {
      "@/jest.setup": [
        "./jest.setup.ts"
      ],
      "@/package.json": [
        "./package.json"
      ],
      "@core/*": [
        "./packages/core/src/*"
      ],
      "@heyapi": [
        "./packages/heyapi/src/index"
      ],
      "@iife/*": [
        "./packages/iife/src/*"
      ],
      "@react/*": [
        "./packages/react/src/*"
      ]
    },
  },
  "include": [
    "packages/core/src",
    "packages/core/test",
    "packages/heyapi/src",
    "packages/iife/src",
    "packages/iife/test",
    "packages/react/src",
    "packages/react/test",
    "jest.setup.ts",
  ]
}