Must have properties in package.json for react-based component libraries (marked it as js for comments)

package.js

{
  "name": "stardust",
  "version": "1.0.0",
  "main": "dist/index.js",                    // Main file
  "module": "dist/index.es.js",               // Main file (ES)
  "jsnext:main": "dist/index.es.js",          // Main file (ES)
  "author": "Wise Introvert",
  "license": "MIT",
  "types": "dist/index.d.js",                 // Specify file/folder that'll hold generated types
  "files": [                                  // ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
    "dist"                                    // Folder that'll hold the actual files (generated)
  ],                                          // ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑
  "scripts": {                                
    "build": "rimraf dist; mkdirp dist; rollup -c",  // <== Build
    "dev": "concurrently \"rollup -c -w\" \"cd playground; yarn; yarn start\""  // <== Run
  },
  "devDependencies": {
    "@types/node": "^14.14.14",
    "@types/react": "^17.0.0",
    "@types/react-dom": "^17.0.0",
    "@typescript-eslint/eslint-plugin": "^4.10.0",
    "@typescript-eslint/parser": "^4.10.0",
    "concurrently": "^5.3.0",
    "cz-conventional-changelog": "3.3.0",
    "eslint": "^7.15.0",
    "eslint-config-airbnb": "^18.2.1",
    "eslint-plugin-import": "^2.22.1",
    "eslint-plugin-jsx-a11y": "^6.4.1",
    "eslint-plugin-react": "^7.21.5",
    "eslint-plugin-react-hooks": "^4.2.0",
    "mkdirp": "^1.0.4",
    "rimraf": "^3.0.2",
    "rollup": "^2.35.1",
    "rollup-plugin-terser": "^7.0.2",
    "rollup-plugin-typescript2": "^0.29.0",
    "typescript": "^4.1.3"
  },
  "config": {
    "commitizen": {
      "path": "./node_modules/cz-conventional-changelog"
    }
  },
  "peerDependencies": {
    "react": "^17.0.1",
    "react-dom": "^17.0.1"
  }
}