Sinatra server running and every time you edit some file a server restart is required. Tiring... boring...
In order to avoid that use the gem called shotgun.
You will need to rather than start your app with
$ ruby yourapp.rb
$ shotgun yourapp.rb
Shotgun will make the app respond on port 9393 as default. If you want the app responding on a different port (e.g. 6379) use
$ shotgun yourapp.rb --port=6379