Xử lý hình ảnh dễ dàng cho Ruby on Rails & ActiveStorage

# Gemfile
gem 'smallpict-ruby'

# config/initializers/smallpict.rb
SmallPict.configure do |config|
  config.api_key = ENV['SMALLPICT_API_KEY']
  config.auto_format = :auto # Selects AVIF or WebP based on client
  config.quality = 82
end

# In your Controller / Service:
optimized_url = SmallPict.optimize(
  user.avatar.url,
  width: 400,
  format: :avif
)