it builds now!

module.nix

@@ -1,49 +1,43 @@
 {
   config,
-  pkgs,
   lib,
+  pkgs,
   modulesPath,
   ...
 }:
 
 let
   asteriskDir = ./asterisk;
-  asteriskFiles = builtins.readDir asteriskDir;
-  fileNames = builtins.attrNames asteriskFiles;
-  entries = builtins.map (name: {
-    name = name;
-    path = "${asteriskDir}/${name}";
-  }) fileNames;
+  asteriskFilesRaw = builtins.readDir asteriskDir;
+  asteriskFileNames = builtins.attrNames asteriskFilesRaw;
+  filteredFileNames = builtins.filter (n: n != "asterisk.conf") asteriskFileNames;
+  asteriskFiles = builtins.listToAttrs (
+    builtins.map (n: {
+      name = n;
+      value = builtins.readFile (asteriskDir + "/${n}");
+    }) filteredFileNames
+  );
 in
 {
-  config =
-    let
-      configFarm = pkgs.linkFarm "asterisk-config" entries;
-    in
-    {
-      services.getty.autologinUser = "root";
+  imports = [
+    "${modulesPath}/services/networking/asterisk.nix"
+  ];
 
-      systemd.services.asterisk = {
-        wantedBy = [ "multi-user.target" ];
-        serviceConfig = {
-          ExecStart = "${pkgs.asterisk}/bin/asterisk -f -C ${configFarm}/asterisk.conf";
-          Restart = "on-failure";
-          User = "asterisk";
-        };
-      };
+  config = {
+    system.stateVersion = "25.11";
 
-      users.users.asterisk = {
-        isSystemUser = true;
-        group = "asterisk";
-      };
-      users.groups.asterisk = { };
+    services.asterisk.enable = true;
 
-      environment.etc."asterisk".source = configFarm;
+    services.asterisk.extraConfig = builtins.readFile (asteriskDir + "/asterisk.conf");
 
-      networking.firewall.allowedTCPPorts = [ 5060 ];
-      networking.firewall.allowedUDPPorts = [
-        5060
-        4569
-      ];
-    };
+    services.asterisk.confFiles = asteriskFiles;
+
+    services.getty.autologinUser = "root";
+
+    networking.firewall.allowedTCPPorts = [ 5060 ];
+    networking.firewall.allowedUDPPorts = [
+      5060
+      4569
+    ];
+  };
 }