Generic Sinatra Service Dependencies: Sinatra - Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort sinatra-contrib - Collection of common Sinatra extensions, semi-officially supported sinatra-param - Parameter validation and type coercion for Sinatra sinatra-session - Small extension for Sinatra apps that provides several convenient settings and methods when working with HTTP cookie-based sessions dotenv - Shim to load environment variables from .env into ENV in development.