iptables web interface
Web interface for linux firewall written in haskell. It covers a little subset of options and targets. It works as standalone https daemon, and allows to authenticate with system accounts using pam. Iptadmin can't ruin iptables configuration files by design. It doesn't let user to block network access to the interface.
DebToo - Debian powered from source. Portage-like configurability brought into Debian with the goodies known to Gentoo users: USE flags, optimised packages, hand picked patches, fine grained tweaking performance, inherted configurations.
Fedora Haskell RPMs comtains Haskell libraries/tools specifically built for Fedora.