add templates for host specific and global overlays

hosts/jupiter/default.nix

@@ -17,7 +17,7 @@
 #           └─ default.nix
 #
 
-{ config, pkgs, user, pkgs-kabbone, ... }:
+{ config, pkgs, inputs, user, ... }:
 
 {
   imports =                                                         # For now, if applying to other ssystem, swap files
@@ -39,12 +39,17 @@
     };
   };
 
+# Example: host-specific overlay — only jupiter gets these packages in its pkgs.
+# nixpkgs.overlays = [
+#   (final: prev: {
+#     corosync-qdevice = (import ../../packages { pkgs = prev; }).corosync-qdevice;
+#     firefox          = inputs.nixpkgs-unstable.legacyPackages.${prev.system}.firefox;
+#   })
+# ];
+#
 #  environment = {
-#    systemPackages = with pkgs-kabbone; [
+#    systemPackages = with pkgs; [
 #      corosync-qdevice
-###      simple-scan
-###       intel-media-driver
-###       alacritty
 #    ];
 #  };