> I experienced that dpkg would gradually lose track of the state of the system and become less and less useful over time. Similar experience with ubuntu and u

> I experienced that dpkg would gradually lose track of the state of the system and become less and less useful over time. Similar experience with ubuntu and upgrading to different versions was my motivation to use nix. It was made worse by my efforts to install cutting edge versions of numpy and scipy at the time. > But I hope they didn't get too carried away with solving the problem of being functional... that's not a real problem. Heh, they are practical bunch, well at least good chunks of nix, nixos, hydra are written in perl and nixops is written in python. I think the main argument for the former was they all knew perl at the time and want to make sure it was reasonable to port to several systems including cygwin on windows thought it is no longer has tier one support.