Zed + SmartD notifications

systems/x86_64-linux/stargate/powersave.nix

@@ -8,17 +8,14 @@
   environment.systemPackages = with pkgs; [
     powertop
   ];
-  services.udev.extraRules = let
-    mkRule = as: lib.concatStringsSep ", " as;
-    mkRules = rs: lib.concatStringsSep "\n" rs;
-  in
-    mkRules [
-      (mkRule [
-        ''ACTION=="add|change"''
-        ''SUBSYSTEM=="block"''
-        ''KERNEL=="sd[a-z]"''
-        ''ATTR{queue/rotational}=="1"''
-        ''RUN+="${pkgs.hdparm}/bin/hdparm -B 90 -S ${builtins.toString (30 * 60 / 5)} /dev/%k"''
-      ])
-    ];
+  systemd.services.hd-idle = {
+    enable = false;
+    description = "External HD spin down daemon";
+    wantedBy = ["multi-user.target"];
+    serviceConfig = {
+      Type = "forking";
+      ExecStart = "${pkgs.hd-idle}/bin/hd-idle -i 1800 -l /var/log/hd-idle.log";
+      ExecReload = "pkill hd-idle";
+    };
+  };
 }