Micro-Frameworks for web app development

A developer colleague (M.A) sent me a brief list of micro-frameworks organized by language. His list is in the same vein as Microjs: Fantastic Micro-Frameworks and Micro-Libraries for Fun and Profit but quite a bit shorter.

For my own future reference, here's his list organized by server-side language

• Java – Spark or perhaps something old fashion like Tomcat or Spring MVC in Tomcat
• Groovy – Grails or Ratpack
• Javascript – node.js or Meteor
• Ruby – Sinatra
• PHP – PHP
• Python – Django or Bottle

For my own amusement (and perhaps my 14yo) I'd be inclined towards either Django (Python and packaged on DreamHost, my longtime hosting service) or Meteor (he likes).

PS. Clearly the world needs an AppleScript micro-framework. (ok, sick joke)