fix: Ensure all users are read from and that the config is shared between module levels

parts/nixos-configurations.nix

@@ -3,7 +3,6 @@
   inputs,
   self,
   lib,
-  pkgs,
   config,
   ...
 }:
@@ -14,7 +13,8 @@
 
   flake.nixosConfigurations =
     let
-      fleet = self.lib.mkFleet { inherit inputs lib config; };
+      users = config.athenix.users;
+      fleet = self.lib.mkFleet { inherit inputs lib config self users; };
     in
     fleet.nixosConfigurations;
 }

parts/packages.nix

@@ -12,13 +12,15 @@
     lib.mkIf (system == "x86_64-linux") {
       packages =
         let
-          fleet = self.lib.mkFleet { inherit inputs lib config; };
+          users = config.athenix.users;
+          fleet = self.lib.mkFleet { inherit inputs lib config self users; };
           artifacts = import ../installer/artifacts.nix {
             inherit
               inputs
               fleet
               self
               system
+              users
               ;
           };
         in

parts/users.nix

@@ -1,7 +0,0 @@
-# Flake-parts wrapper for users.nix
-{ inputs, ... }:
-let
-  # Minimal pkgs just for shell paths - will be overridden in actual NixOS configs
-  pkgs = inputs.nixpkgs.legacyPackages.x86_64-linux;
-in
-import ../users.nix { inherit pkgs; }