package.json

{
  "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom",
    "eject": "react-scripts eject",
    "commit": "git-cz",
    "precommit": "lint-staged" //  Added
  },
  
  ...
  //  Added
  "lint-staged": {
    "*.{js,ts,tsx}": [
      "eslint --fix"
    ]
  },
}