common: share LAN discovery settings

Move ping and Avahi/mDNS configuration into a shared LAN discovery module so kusanagi and enzo both publish their .local names, resolve each other on the LAN, and answer ping.

Keep mDNS scoped to the shared Wi-Fi interface instead of using Avahi's global firewall helper.

Assisted-by: OpenAI:gpt-5

1 files changed, 0 insertions, 15 deletions

diff --git a/machines/kusanagi/desktop.nix b/machines/kusanagi/desktop.nix
index 8e1eb8c..44b9c81 100644
--- a/machines/kusanagi/desktop.nix
+++ b/machines/kusanagi/desktop.nix
@@ -22,21 +22,6 @@
     drivers = with pkgs; [ gutenprint ];
   };
 
-  # mDNS: publish kusanagi.local and resolve *.local LAN names.
-  # Keep the firewall opening scoped to the Wi-Fi LAN interface.
-  networking.firewall.interfaces.wlp8s0.allowedUDPPorts = [ 5353 ];
-  services.avahi = {
-    enable = true;
-    nssmdns4 = true;
-    openFirewall = false;
-    allowInterfaces = [ "wlp8s0" ];
-    publish = {
-      enable = true;
-      addresses = true;
-      workstation = true;
-    };
-  };
-
   # prevent auto-mounting optical disks
   services.udisks2.enable = true;