tsconfig.json

{
  "compilerOptions": {
    // we can explicitly declare `any`, but we don't want to infer `any`
    "noImplicitAny": false,
    // maybe bump to 'esNext'?
    "target": "es6",
    // allows react jsx in tsx files
    "jsx": "react",
    // Eventually turn off, one we have no more assumed default exports.
    // Allow default imports from modules with no default export.
    "allowSyntheticDefaultImports": true,
    // allows importing of json files, needed for locales as of right now
    "resolveJsonModule": true,
    // Search under node_modules for non-relative imports.
    "moduleResolution": "node",
    // Process & infer types from .js files.
    "allowJs": true,
    // Don't emit; allow Babel to transform files.
    "noEmit": true,
    // Disallow features that require cross-file information for emit.
    "isolatedModules": true,
    // Import non-ES modules as default imports.
    "esModuleInterop": true,
    // if 'target' is updated, this should be updated as well
    "lib": [
      "esnext",
      "dom",
      "dom.iterable"
    ],
    "skipLibCheck": false,
    "strict": false,
    "plugins": [
      {
        "name": "typescript-strict-plugin",
        "paths": [
          "./packages/@react-spectrum/action",
          "./packages/@react-spectrum/button",
          "./packages/@react-spectrum/color",
          "./packages/@react-spectrum/checkbox",
          "./packages/@react-spectrum/divider",
          "./packages/@react-spectrum/icon",
          "./packages/@react-spectrum/illustratedmessage",
          "./packages/@react-spectrum/image",
          "./packages/@react-spectrum/meter",
          "./packages/@react-spectrum/statuslight",
          "./packages/@react-spectrum/text",
          "./packages/@react-spectrum/view",
          "./packages/@react-spectrum/well",
          "./packages/@react-types/action",
          "./packages/@react-types/button",
          "./packages/@react-types/checkbox",
          "./packages/@react-types/color",
          "./packages/@react-types/divider",
          "./packages/@react-types/illustratedmessage",
          "./packages/@react-types/image",
          "./packages/@react-types/meter",
          "./packages/@react-types/shared",
          "./packages/@react-types/statuslight",
          "./packages/@react-types/text",
          "./packages/@react-types/view",
          "./packages/@react-types/well"
        ]
      }
    ]
  },
  "include": [
    "packages"
  ],
  "exclude": [
    "**/node_modules"
  ]
}