change from mono-home-manager to full flake multi-system configuration

modules/users.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, lib, ... }:
+
+{
+  users.mutableUsers = false;
+
+  # Enable automatic login for the user.
+  services.getty.autologinUser = "wieerwill";
+  
+  users.users.wieerwill = {
+    isNormalUser = true;
+    description = "wieerwill";
+    home = "/home/wieerwill";
+    createHome = true;
+
+    extraGroups = [
+      "wheel"               # sudo access
+      "networkmanager"      # network config
+      "audio" "video"       # media and graphics support
+      "docker"              # container management
+      "libvirtd"            # virtualization
+      "input"               # gamepad / touchscreen
+      "plugdev"             # udev/USB access
+      "git"
+    ];
+
+    # leave empty if managed externally (passwd or sops)
+    initialHashedPassword = "";
+
+    #openssh.authorizedKeys.keys = [
+    #  # Replace with your actual SSH pubkey
+    #  "ssh-ed25519 AAAAC3Nz... user@machine"
+    #];
+
+    packages = with pkgs; [
+      zsh
+    ];
+    shell = pkgs.zsh;
+  };
+  programs.zsh.enable = true;
+
+  # Optional system-wide group definition for shared development tools
+  users.groups.git.gid = 998;
+  users.groups.plugdev = { };
+}