[arch-general] pacman new generation

[Bernardo Barros]

Perhaps the developers want to take a look at this distribution.It is
reported that is written in a `purely functional package management'
and tries to be a highly safe OS, where `upgrading a system is as
reliable as reinstalling from scratch'.

  http://nixos.org/nixos/

> Because the files of a new configuration don’t overwrite old ones, you
> can (atomically) roll back to a previous configuration. For instance,
> if after a nixos-rebuild switch you discover that you don’t like the
> new configuration, you can just go back

It can be an inspiration for a new version of pacman rewritten in
haskell? Also Don Stewart's talk about 'Scripting with Types' might
inspire someone too (BTW since he started arch-haskell I think he is a
Arch user):

  http://donsbot.files.wordpress.com/2009/01/semicolon.pdf