diff --git a/nix/home/common/colorsync_services.nix b/nix/home/common/colorsync_services.nix
index 87c5c37..60fe468 100644
--- a/nix/home/common/colorsync_services.nix
+++ b/nix/home/common/colorsync_services.nix
@@ -12,10 +12,15 @@ let
   name = "colorsync-scriptrunner";
   colorsyncScriptWrapper = pkgs.writeShellScriptBin "${name}-wrapper" ''
     set -euo pipefail
-
     echo colorsync-scriptrunner is executing
-    "$HOME/.config/tmux/tmux-statusbar-color.sh"
-    "$HOME/.config/ghostty/ghostty-change-theme.sh"
+
+    if tmux has-session 2>/dev/null; then
+      "$HOME/.config/tmux/tmux-statusbar-color.sh" || true
+    fi
+
+    if command -v ghostty >/dev/null 2>&1; then
+      "$HOME/.config/ghostty/ghostty-change-theme.sh" || true
+    fi
   '';
   root = "$HOME/.local/state/colorsync/current";
 in
diff --git a/nix/utils.nix b/nix/utils.nix
index 5581e78..7219c9b 100644
--- a/nix/utils.nix
+++ b/nix/utils.nix
@@ -61,19 +61,16 @@ rec {
       description ? "Register ${name}.",
     }:
     let
+      fswatchLatencyArg = if isDarwin then "--latency=0.2" else "";
       scriptPkg = pkgs.writeShellScriptBin "${name}" ''
         set -euo pipefail
 
         ROOT="${root}"
         SCRIPT="${scriptPath}"
         FSWATCH="${pkgs.fswatch}/bin/fswatch"
+        FSWATCH_LATENCY_ARG="${fswatchLatencyArg}"
 
-        echo root:"$ROOT"
-        echo script:"$SCRIPT"
-        echo fswatch:"$FSWATCH"
-        echo home:"$HOME"
-
-        "$FSWATCH" --latency=0.2 -o "$ROOT" | xargs -n1 "$SCRIPT"
+        "$FSWATCH" $FSWATCH_LATENCY_ARG --event=Updated --event=Created --event=Removed --event=Renamed -o --exclude '\.DS_Store$' "$ROOT" | xargs -n1 "$SCRIPT"
       '';
 
       baseBinPath = lib.makeBinPath [