ZeptoJS in Rails

applications.js.coffee

#= require zeptojs/src/zepto
#= require zeptojs/src/ajax
#= require zeptojs/src/form
#= require zeptojs/src/event

Zepto ($) ->
  console.log("success!")
  return

bower.json

{
  "lib": {
    "name": "bower-rails generated lib assets",
    "dependencies": {
    }
  },
  "vendor": {
    "name": "bower-rails generated vendor assets",
    "dependencies": {
      "zeptojs" : "~1.1.4"
    }
  }
}

bower_rails.rb

# in config/initializers/bower_rails.rb
BowerRails.configure do |bower_rails|
  # Invoke `rake bower:install` automatically before the `rake assets:precompile` task.
  bower_rails.install_before_precompile = true

  # Invoke `rake bower:resolve` automatically before the `rake assets:precompile` task.
  bower_rails.resolve_before_precompile = true

  # Don't invoke `rake bower:clean` task because it will deletes other files except described in `main` directives
  # bower_rails.clean_before_precompile = true
end

Gemfile

gem "bower-rails", "~> 0.8.3"

runcommand

# To generate bower_rails config and bower.json files
$ rails g bower_rails:initialize