koyo 
koyo is a web application development toolkit that expands upon Racket's built-in web-server with all the functionality that a web app typically needs in a complete package.
All of koyo's components are decoupled so you get to pick and choose what you use.
Quickstart
$ raco pkg install koyo
$ raco koyo new example # or raco koyo new -b minimal example
$ cd example && cat README.md
Documentation
You can find the documentation on the Racket package server. The package server only updates once every few hours so if you want the absolute most recent docs, then you can visit koyoweb.org.
License
koyo is licensed under the 3-Clause BSD license.