fixes + dunst config stuff

etcnixos/no-rgb.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 {
   systemd.services.no-rgb =
     let
@@ -27,7 +27,7 @@
     {
       description = "disable rgb";
       serviceConfig = {
-        ExecStart = "${no-rgb}/bin/${no-rgb.name}";
+        ExecStart = "${lib.getExe no-rgb}";
         Type = "oneshot";
       };
       wantedBy = [ "multi-user.target" ];