Express claims to be a "Fast, unopinionated, minimalist web framework for Node.js" so we decided that minimal fits well because Feathers at it's core is just a

Express claims to be a "Fast, unopinionated, minimalist web framework for Node.js" so we decided that minimal fits well because Feathers at it's core is just a very small extension to and in the spirit (or so we'd like to think ;) of Express.