I love the simplicity and speed of using Middleman to generate static frontend pages, but sometimes I need more dynamic routes.
This simply leverages Rack to point at Sinatra routes for more dynamic-ness, and Middleman's build folder for the rest. Basically, this post by hull.io, stripped down to the bare minimum for easy boilerplating.
(Also, my templates are all in haml, for those of you expecting the
default erb templates.)