Separate System and User packages

- Move user programs out of systems section and int
  user section
- Install user packages with home manager rather than
  system wide

system/utilities/miscellaneous.nix

@@ -0,0 +1,14 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    vim
+    wget
+    curl
+    zsh
+    git
+    rsync
+    cryptsetup
+    home-manager
+  ];
+}