I really like how lotus/model isolate persistence and biz logic layer. Plus it is not inheritance of a class like ActiveRecord :+1:. Besides, the modular application architecture is interesting too, though I face a problem with the routing, it seems to me if you have multiple apps, the routes of all apps are not flatten altogther thus the namespace of one 'child' app does not take effect. Thought?
Lotus is an amazing piece of software. It really brings new perspective for Ruby web development. And the code is so easy to read. Congrats Luca on the new release.