* Package name    : setdown
  Version         : 0.2.0.0
  Upstream Author : Robert Massaioli <setdown@rmdir.app>
* URL             : https://hackage.haskell.org/package/setdown
* License         : BSD-3-Clause
  Programming Lang: Haskell
  Description     : Treating files as sets to perform rapid set
manipulation.

Setdown is a command line tool for line-based set operations on text files
(intersection, union, difference, symmetric difference). Input files are
treated as sets - sorted and de-duplicated automatically - so users can
define reusable set operations in a .setdown file and rerun them as
underlying data changes, similar in spirit to a Makefile for set data.