That seems like a good approach, although one thing is missing: when you use the route-decorator in Flask, the route is registered to the app object "via magic", whereas in your example, you still have to register it manually (`app.route(user())`). Now, I am partial to liking registering manually, like in your example and in Pencil itself, since that's clearer than having a lot of routes spread around in a whole lot of files that are magically registered, but just for the kicks, would it be possible to not having to manually register the route to the app object?