diff --git a/flake.nix b/flake.nix
index d31398e..2fdfa51 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,7 +28,40 @@
 
         vendorHash = "sha256-PbGOT36n1gyHr0OK0GqZL7B04WHJv+781nGJZIj9LgY=";
       };
+
       default = self.packages.${system}.sortseer;
     });
+
+    # https://wiki.nixos.org/wiki/NixOS_modules
+    nixosModules = {
+      sortseer = {
+        config,
+        lib,
+        pkgs,
+        ...
+      }: let
+        cfg = config.services.sortseer;
+      in {
+        options.services.sortseer = {
+          enable = lib.mkEnableOption "sortseer service";
+        };
+
+        config = lib.mkIf cfg.enable {
+          systemd.services.sortseer = {
+            after = ["network.target"];
+            wantedBy = ["multi-user.target"];
+            serviceConfig = {
+              ExecStart = "${self.packages.${pkgs.system}.sortseer}/bin/sortseer";
+              Restart = "always";
+              DynamicUser = true;
+              # Allow binding to privileged ports
+              AmbientCapabilities = "CAP_NET_BIND_SERVICE";
+            };
+          };
+        };
+      };
+
+      default = self.nixosModules.sortseer;
+    };
   };
 }