Sugar 
Functions that improve the readability of Racket code in Racket 6.0+.
Install from the command line like so:
raco pkg install sugar
Then require it in your Racket file, in standard mode:
(require sugar)
In safe mode (with contracts):
(require (submod sugar safe))
You can read the docs here.
License
MIT
Project status
Complete. Maintained but no improvements planned. I don’t disavow this code, exactly, and I maintain other projects that rely on it. But it arises from a more naive era of personal Racketeering. I would not necessarily recommend taking inspiration from the code herein.