{
  "name": "personal-website",
  "version": "0.0.1",
  "private": true,
  "devDependencies": {
    "react-test-renderer": "15.6.1",
    "sw-precache": "^4.2.2"
  },
  "dependencies": {
    "glamor": "^2.20.25",
    "glamorous": "^3.23.4",
    "react": "^15.3.1",
    "react-dom": "^15.3.1",
    "react-scripts": "1.0.10"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build && cp manifest.json build/ && sw-precache --config=sw-precache-config.js --verbose",
    "eject": "react-scripts eject",
    "test": "react-scripts test --env=jsdom"
  }
}

{
  "name": "personal-website",
  "version": "0.0.1",
  "private": true,
  "devDependencies": {
    "cp-cli": "1.0.2",
    "react-test-renderer": "15.6.1",
    "sw-precache": "^4.2.2"
  },
  "dependencies": {
    "glamor": "^2.20.25",
    "glamorous": "^3.23.4",
    "react": "^15.3.1",
    "react-dom": "^15.3.1",
    "react-scripts": "1.0.10"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build && cp-cli manifest.json build/manifest.json && sw-precache --config=sw-precache-config.js --verbose",
    "eject": "react-scripts eject",
    "test": "react-scripts test --env=jsdom"
  }
}

Add cp-cli for cross platform support
Add cp-cli for cross platform support
