Anyone familiar with selecta should figure out what's being offered.
Haddocks and more haddocks in case Hackage feels like being dead today.
To install the library:
% cabal install wybor.cabal
To install wybor, a simple selecta clone:
% cabal install example/wybor-bin/wybor-bin.cabal
To install gnoodle, a GNU software downloader:
% cabal install example/gnoodle/gnoodle.cabal