React/babel/browserify minimal project

package.json

{
    "name": "tail-call-ru",
    "version": "0.0.1",
    "description": "My personal site",
    "main": " ",
    "dependencies": {},
    "devDependencies": {
        "babel-cli": "^6.26.0",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-react": "^6.24.1",
        "babelify": "^8.0.0",
        "browserify": "^16.2.2",
        "react": "^16.4.2",
        "react-dom": "^16.4.2"
    },
    "scripts": {
        "build": "browserify -t [ babelify --presets [ react es2015 ] ] src/index.js -o build/bundle.js",
        "test": "echo \"Error: no test specified\" && exit 1"
    },
    "author": "Random J. Hacker",
    "license": "GPL-3.0-or-later"
}