choo-component.js

module.exports = function (state, emitter, app) {
  state.component = require('component-box')
  app.component = function (key, Component) {
    if (!key || !Component) return
    var obj = {}
    obj[key] = function () {
      return new Component()
    }
    state.component.use(obj)
  }
}

package.json

{
  "name": "choo-component",
  "version": "0.0.0",
  "main": "choo-component.js",
  "dependencies": {
    "component-box": "^0.1.6" 
  }
}