>>>>> "Taco" == Taco Hoekwater writes: Taco> If it has .dev or .rpm (or an import function thereof) you could Taco> use Norberts packages instead of the 'upstream' releases? No it uses source deployment, although it's possible to use binaries as well. NixOS puts all the build packages in separate folder and does not use standard /usr /lib /lib etc. folders, but one is assured that build deps are always correct, as well as ability to e.g. have multiple versions of some libs, atomic updates, easy to rollback to some previous 'generation'...see http://nixos.org/releases/nix/nix-0.11/manual/#sec-profiles Sincerely, Gour -- Gour | Zagreb, Croatia | GPG key: C6E7162D ----------------------------------------------------------------