Simple i18n setup in my Hanami 1.3 app

i18n.rb

# config/initializers/i18n.rb

require 'i18n'

# Configure it as you want
I18n.load_path      = Dir["config/locales/**.yml"]
I18n.enforce_available_locales = true
I18n.default_locale = "en"
I18n.backend.load_translations

# Use it the way you want
def t(key, default = nil)
  # The real one is a bit more complicated but you get the idea
  I18n.t(key) || default || key
end

# You can now t('my.locale.key') anywhere in the code to get the translation.
# Don't forget to set the locale somewhere in the request, e.g: I18n.locale = "fr"