`formik` fails with pnpm strict mode — missing peerDependency on `@types/react`

[baraknaveh]

formik@2.4.9 ships .d.ts files that import from react:

import * as React from 'react';

TypeScript resolves these types through @types/react, but formik only declares react as a peer dependency — not @types/react. This works in flat node_modules layouts (npm, yarn) because @types/react is hoisted from the consuming project. When pnpm hoisting is disabled (hoist: false), TypeScript cannot find the React types and fails with:

error TS2307: Cannot find module 'react' or its corresponding type declarations.

Workaround:

packageExtensions:
  "formik@2":
    peerDependencies:
      "@types/react": "*"

Suggested fix: Add @types/react to peerDependencies in formik's package.json.