tsconfig.client.json

{
  "compilerOptions": {
    /* Emit */
    "lib": ["ESNext", "dom"],
    "declaration": true,
    // These two options will be selectively overridden in each project.
    // Utility libraries will have source maps on, but plugins will not.
    "declarationMap": false,
    "sourceMap": false,
    "jsx": "react-native",
    "importHelpers": true,
    "noEmitHelpers": true,
    // Avoid accidentally using this config to build
    // "noEmit": true,

    /* Strict Type-Checking Options */
    "allowUnreachableCode": false,
    // Too hard to turn on
    "exactOptionalPropertyTypes": false,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    // `process.env` is usually accessed as property
    "noPropertyAccessFromIndexSignature": false,
    "noUncheckedIndexedAccess": true,
    /* strict family */
    "strict": true,
    "alwaysStrict": true,
    "noImplicitAny": true,
    "noImplicitThis": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "useUnknownInCatchVariables": true,
    /* Handled by ESLint */
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "importsNotUsedAsValues": "remove",

    /* Module Resolution */
    "moduleResolution": "bundler",
    "resolveJsonModule": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "isolatedModules": true,
    "allowJs": true,
    "skipLibCheck": true, // @types/webpack and webpack/types.d.ts are not the same thing

    "noEmit": false,
    "composite": true,
    "incremental": true,
    "tsBuildInfoFile": "./lib/.tsbuildinfo-client",
    "rootDir": "src",
    "outDir": "lib",
    "module": "esnext",
    "target": "esnext"
  },
  "include": ["src/theme", "src/client", "src/*.d.ts"],
  "exclude": ["**/__tests__/**"]
}