Migrate to Snowfall (#1)

Reviewed-on: #1
Co-authored-by: Evan Reichard <evan@reichard.io>
Co-committed-by: Evan Reichard <evan@reichard.io>

modules/nixos/services/avahi/default.nix

@@ -0,0 +1,33 @@
+{ config, lib, namespace, ... }:
+let
+  inherit (lib) mkIf;
+
+  cfg = config.${namespace}.services.avahi;
+in
+{
+  options.${namespace}.services.avahi = {
+    enable = lib.mkEnableOption "Avahi";
+  };
+
+  config = mkIf cfg.enable {
+    services.avahi = {
+      enable = true;
+      nssmdns4 = true;
+      openFirewall = true;
+      publish = {
+        enable = true;
+        addresses = true;
+        domain = true;
+        hinfo = true;
+        userServices = true;
+        workstation = true;
+      };
+    };
+
+    # Cloud Init
+    systemd.services.avahi-daemon = mkIf config.${namespace}.services.cloud-init.enable {
+      after = [ "cloud-final.service" ];
+      requires = [ "cloud-final.service" ];
+    };
+  };
+}