diff --git a/configs/home-manager/foo-dogsquared/modules/setups/desktop.nix b/configs/home-manager/foo-dogsquared/modules/setups/desktop.nix
index 18f4f8eb..4586efac 100644
--- a/configs/home-manager/foo-dogsquared/modules/setups/desktop.nix
+++ b/configs/home-manager/foo-dogsquared/modules/setups/desktop.nix
@@ -58,7 +58,12 @@ in
       startAt = "daily";
       settings = {
         topdirs = "~/Downloads ~/Documents ~/library";
-        "skippedNames+" = "node_modules";
+        "skippedNames+" =
+          let
+            inherit (config.state) dev ignoreDirectories;
+            ignoreDirectories' = ignoreDirectories ++ dev.ignoreDirectories;
+          in
+          lib.concatStringsSep " " ignoreDirectories';
 
         "~/library/projects" = {
           "skippedNames+" = ".editorconfig .gitignore result flake.lock go.sum";
diff --git a/configs/home-manager/foo-dogsquared/modules/setups/development.nix b/configs/home-manager/foo-dogsquared/modules/setups/development.nix
index 10c4c3bc..701badc8 100644
--- a/configs/home-manager/foo-dogsquared/modules/setups/development.nix
+++ b/configs/home-manager/foo-dogsquared/modules/setups/development.nix
@@ -10,6 +10,12 @@ in
 
   config = lib.mkIf cfg.enable (lib.mkMerge [
     {
+      state.dev.ignoreDirectories = [
+        "node_modules" # For Node projects.
+        "result" # For Nix builds.
+        "target" # For Rust builds.
+      ];
+
       users.foo-dogsquared.programs = {
         shell.enable = lib.mkDefault true;
         git.enable = lib.mkDefault true;