4 files changed, 12 insertions, 16 deletions
diff --git a/pkgs/by-name/so/solo5/package.nix b/pkgs/by-name/so/solo5/package.nix
index 240c69a40a0f8..57ccd1e24b2bf 100644
--- a/pkgs/by-name/so/solo5/package.nix
+++ b/pkgs/by-name/so/solo5/package.nix
@@ -63,16 +63,15 @@ in stdenv.mkDerivation {
     runHook postCheck
   '';
 
-  meta = {
+  meta = with lib; {
     description = "Sandboxed execution environment";
     homepage = "https://github.com/solo5/solo5";
-    license = lib.licenses.isc;
-    maintainers = with lib.maintainers; [ ehmry ];
-    platforms = builtins.map ({arch, os}: "${arch}-${os}")
-      (lib.cartesianProductOfSets {
-        arch = [ "aarch64" "x86_64" ];
-        os = [ "freebsd" "genode" "linux" "openbsd" ];
-      });
+    license = licenses.isc;
+    maintainers = [ maintainers.ehmry ];
+    platforms = mapCartesianProduct ({ arch, os }: "${arch}-${os}") {
+      arch = [ "aarch64" "x86_64" ];
+      os = [ "freebsd" "genode" "linux" "openbsd" ];
+    };
   };
 
 }
diff --git a/pkgs/data/fonts/junicode/tests.nix b/pkgs/data/fonts/junicode/tests.nix
index fda7de31670e1..831e60796d12f 100644
--- a/pkgs/data/fonts/junicode/tests.nix
+++ b/pkgs/data/fonts/junicode/tests.nix
@@ -15,14 +15,13 @@ let
       '');
 in
 builtins.listToAttrs (
-  map
-    texTest
-    (lib.attrsets.cartesianProductOfSets {
+  lib.mapCartesianProduct texTest
+    {
       tex = [ "xelatex" "lualatex" ];
       fonttype = [ "ttf" "otf" ];
       package = [ "junicode" ];
       file = [ ./test.tex ];
-    })
+    }
   ++
   [
     (texTest {
diff --git a/pkgs/data/icons/catppuccin-cursors/default.nix b/pkgs/data/icons/catppuccin-cursors/default.nix
index 20e4718515e61..eeb9dd3227f07 100644
--- a/pkgs/data/icons/catppuccin-cursors/default.nix
+++ b/pkgs/data/icons/catppuccin-cursors/default.nix
@@ -9,9 +9,8 @@ let
     palette = [ "Frappe" "Latte" "Macchiato" "Mocha" ];
     color = [ "Blue" "Dark" "Flamingo" "Green" "Lavender" "Light" "Maroon" "Mauve" "Peach" "Pink" "Red" "Rosewater" "Sapphire" "Sky" "Teal" "Yellow" ];
   };
-  product = lib.attrsets.cartesianProductOfSets dimensions;
   variantName = { palette, color }: (lib.strings.toLower palette) + color;
-  variants = map variantName product;
+  variants = lib.mapCartesianProduct variantName dimensions;
 in
 stdenvNoCC.mkDerivation rec {
   pname = "catppuccin-cursors";
diff --git a/pkgs/data/icons/comixcursors/default.nix b/pkgs/data/icons/comixcursors/default.nix
index 1c4fdc195180b..735ff686b49cf 100644
--- a/pkgs/data/icons/comixcursors/default.nix
+++ b/pkgs/data/icons/comixcursors/default.nix
@@ -7,14 +7,13 @@ let
     thickness = [ "" "Slim_" ];  # Thick or slim edges.
     handedness = [ "" "LH_" ];   # Right- or left-handed.
   };
-  product = lib.cartesianProductOfSets dimensions;
   variantName =
     { color, opacity, thickness, handedness }:
     "${handedness}${opacity}${thickness}${color}";
   variants =
     # (The order of this list is already good looking enough to show in the
     # meta.longDescription.)
-    map variantName product;
+    lib.mapCartesianProduct variantName dimensions;
 in
 stdenvNoCC.mkDerivation rec {
   pname = "comixcursors";