if (Meteor.isServer) {
  Meteor.startup(function () {
    if (Images.find().count() === 0) {
      Images.insert({
        "img_src": "laptops.jpg",
        "img_alt": "some laptops on a table"
      });
      Images.insert({
        "img_src": "bass.jpg",
        "img_alt": "a bass player"
      });
      Images.insert({
        "img_src": "beard.jpg",
        "img_alt": "some musicians with beards"
      });
    }
  });
}