{
  "name": "generator-<%= props.projectName %>",
  "version": "1.0.0",
  "description": "<%= props.description %>",
  "main": "./generators/app/index.js",
  "scripts": {
    "test": "eslint generators/app/*.js",
    "postpublish": "git tag -a $npm_package_version -m '$npm_package_version' && git push --tags"
  },
  "keywords": [
    "yeoman-generator",
    "ngx-rocket-addon"
  ],
  "author": "<%= props.author %>",
  "license": "MIT",
  "dependencies": {
    "@ngx-rocket/core": "^3.3.0",
    "chalk": "^2.3.0"
  },
  "devDependencies": {
    "eslint": "^4.19.0",
    "eslint-config-xo-space": "^0.18.0"
  },
  "engines": {
    "node": ">=6.0.0"
  },
  "eslintConfig": {
    "extends": "xo-space/esnext"
  },
  "files": [
    "generators/app"
  ]
}

{
  "name": "generator-<%= props.projectName %>",
  "version": "1.0.0",
  "description": "<%= props.description %>",
  "main": "./generators/app/index.js",
  "scripts": {
    "test": "xo generators/app/*.js",
    "postpublish": "git tag -a $npm_package_version -m \"$npm_package_version\" && git push --tags"
  },
  "keywords": [
    "yeoman-generator",
    "ngx-rocket-addon"
  ],
  "author": "<%= props.author %>",
  "license": "MIT",
  "dependencies": {
    "@ngx-rocket/core": "^4.0.1",
    "chalk": "^2.3.0"
  },
  "devDependencies": {
    "xo": "^0.24.0"
  },
  "engines": {
    "node": ">=8.9.0"
  },
  "xo": {
    "space": true,
    "prettier": true
  },
  "files": [
    "generators/app"
  ]
}

Update add-on template and use xo with prettier
Update add-on template and use xo with prettier
