new nixos dotfile layout

Signed-off-by: Michał Czyż <mike@c2yz.com>

pkgs/default.nix

@@ -1,7 +0,0 @@
-# Custom packages, that can be defined similarly to ones from nixpkgs
-# You can build them using 'nix build .#example'
-{pkgs ? import <nixpkgs> {}}: rec {
-  # example = pkgs.callPackage ./example { };
-  dwm-customized = pkgs.callPackage ./dwm-customized {};
-  lmstudio = pkgs.callPackage ./lmstudio {};
-}