diff --git a/home.nix b/home.nix
index 6739231..1c53069 100644
--- a/home.nix
+++ b/home.nix
@@ -84,12 +84,6 @@ let
         --prefix LD_LIBRARY_PATH : "${pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc.lib ]}"
     '';
   };
-  greptileSkills = pkgs.fetchFromGitHub {
-    owner = "greptileai";
-    repo = "skills";
-    rev = "4ae5198fb82fe28d7b452796152f2b1745051c77";
-    hash = "sha256-NvDd3BSVeS10kYupLxo27VlKeeHPHrxyTb8EdVqrtQw=";
-  };
   nasaApodWallpaper = pkgs.writeShellApplication {
     name = "nasa-apod-wallpaper";
     runtimeInputs = [
@@ -818,11 +812,10 @@ in
   };
 
   systemd.user.timers.nasa-apod-wallpaper = {
-    Unit.Description = "Refresh NASA APOD wallpaper regularly";
+    Unit.Description = "Refresh NASA APOD wallpaper daily";
     Timer = {
-      OnStartupSec = "2m";
-      OnCalendar = "hourly";
-      Persistent = true;
+      OnStartupSec = "0";
+      OnUnitActiveSec = "1d";
       Unit = "nasa-apod-wallpaper.service";
     };
     Install.WantedBy = [ "timers.target" ];
@@ -852,9 +845,6 @@ in
     };
   };
 
-  home.file.".agents/skills/check-pr".source = "${greptileSkills}/check-pr";
-  home.file.".agents/skills/greploop".source = "${greptileSkills}/greploop";
-
   home.file.".config/opencode/opencode.json".text = builtins.toJSON {
     "$schema" = "https://opencode.ai/config.json";
     autoupdate = false;