> -- Hi Twitter! <https://twitter.com/taylorfausak/status/947979556220268549>
> -- Hi Reddit! <https://redd.it/7nlsgx>
>
> -- | This is a joke package. It is meant to show Haskell packages on
> -- Hackage can be mutated by revising them. This package uses a custom
> -- Cabal setup. It reads the package description, which is what you are
> -- reading now, and creates a file at build time from its contents. Since
> -- revisions are allowed to change descriptions, the package itself is
> -- mutable. I personally disagree with Hackage revisions, so I authored
> -- this package to show one way they can be abused. To see how exactly this
> -- is accomplished, read the custom setup file on GitHub:
> -- <https://github.com/tfausak/acme-mutable-package/blob/9ff7cec/Setup.hs>.
>
> module AcmeMutablePackage ( mutable ) where
>
> -- | Are packages mutable? You might think they would be immutable, but you
> -- would be wrong.
>
> mutable :: Bool
> mutable = False -- Originally true.