update flake, add module

module.nix

@@ -0,0 +1,50 @@
+{config, lib, pkgs, ...}:
+
+with lib;
+
+let
+
+  cfg = config.services.eintopf-radar-sync;
+
+in 
+  {
+
+    options = {
+      services.eintopf-radar-sync = {
+
+        enable = mkOption {
+          type = types.bool;
+          default = false;
+          description = ''
+            Enable eintopf-radar-sync daemon.
+          '';
+        };
+
+      };
+    };
+
+    config = mkIf cfg.enable {
+
+      systemd.services."eintopf-radar-sync" = {
+        description = "eintopf-radar-sync script";
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        environment.PYTHONUNBUFFERED = "1";
+        serviceConfig = {
+          ExecStart = "${pkgs.iwd-autocaptiveauth}/bin/iwd-autocaptiveauth --profileDir ${pkgs.iwd-autocaptiveauth}/profiles";
+          Restart = "on-failure";
+          User = "iwd-autocaptiveauth";
+          RestartSec = 30;
+          WorkingDirectory = ''${pkgs.iwd-autocaptiveauth}/'';
+        };
+        restartIfChanged = true;
+      };
+
+    };
+
+    meta = {
+      maintainers = with lib.maintainers; [ onny ];
+    };
+
+  }
+