diff --git a/nixos/modules/services/x11/desktop-managers/gnome.nix b/nixos/modules/services/x11/desktop-managers/gnome.nix
index 7bb7ef27ed57..d3db98cb4e2a 100644
--- a/nixos/modules/services/x11/desktop-managers/gnome.nix
+++ b/nixos/modules/services/x11/desktop-managers/gnome.nix
@@ -22,42 +22,14 @@ let
     favorite-apps=[ 'org.gnome.Epiphany.desktop', 'org.gnome.Geary.desktop', 'org.gnome.Calendar.desktop', 'org.gnome.Music.desktop', 'org.gnome.Photos.desktop', 'org.gnome.Nautilus.desktop' ]
   '';
 
-  nixos-background-ligtht = pkgs.nixos-artwork.wallpapers.simple-blue;
+  nixos-background-light = pkgs.nixos-artwork.wallpapers.simple-blue;
   nixos-background-dark = pkgs.nixos-artwork.wallpapers.simple-dark-gray;
 
-  nixos-gsettings-desktop-schemas = let
-    defaultPackages = with pkgs; [ gsettings-desktop-schemas gnome.gnome-shell ];
-  in
-  pkgs.runCommand "nixos-gsettings-desktop-schemas" { preferLocalBuild = true; }
-    ''
-     mkdir -p $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
-
-     ${concatMapStrings
-        (pkg: "cp -rf ${pkg}/share/gsettings-schemas/*/glib-2.0/schemas/*.xml $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas\n")
-        (defaultPackages ++ cfg.extraGSettingsOverridePackages)}
-
-     cp -f ${pkgs.gnome.gnome-shell}/share/gsettings-schemas/*/glib-2.0/schemas/*.gschema.override $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
-
-     ${optionalString flashbackEnabled ''
-       cp -f ${pkgs.gnome.gnome-flashback}/share/gsettings-schemas/*/glib-2.0/schemas/*.gschema.override $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
-     ''}
-
-     chmod -R a+w $out/share/gsettings-schemas/nixos-gsettings-overrides
-     cat - > $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/nixos-defaults.gschema.override <<- EOF
-       [org.gnome.desktop.background]
-       picture-uri='file://${nixos-background-ligtht.gnomeFilePath}'
-       picture-uri-dark='file://${nixos-background-dark.gnomeFilePath}'
-
-       [org.gnome.desktop.screensaver]
-       picture-uri='file://${nixos-background-dark.gnomeFilePath}'
-
-       ${cfg.favoriteAppsOverride}
-
-       ${cfg.extraGSettingsOverrides}
-     EOF
-
-     ${pkgs.glib.dev}/bin/glib-compile-schemas $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/
-    '';
+  # TODO: Having https://github.com/NixOS/nixpkgs/issues/54150 would supersede this
+  nixos-gsettings-desktop-schemas = pkgs.gnome.nixos-gsettings-overrides.override {
+    inherit (cfg) extraGSettingsOverrides extraGSettingsOverridePackages favoriteAppsOverride;
+    inherit flashbackEnabled nixos-background-dark nixos-background-light;
+  };
 
   nixos-background-info = pkgs.writeTextFile rec {
     name = "nixos-background-info";
@@ -67,7 +39,7 @@ let
       <wallpapers>
         <wallpaper deleted="false">
           <name>Blobs</name>
-          <filename>${nixos-background-ligtht.gnomeFilePath}</filename>
+          <filename>${nixos-background-light.gnomeFilePath}</filename>
           <filename-dark>${nixos-background-dark.gnomeFilePath}</filename-dark>
           <options>zoom</options>
           <shade_type>solid</shade_type>
diff --git a/pkgs/desktops/cinnamon/cinnamon-gsettings-overrides/default.nix b/pkgs/desktops/cinnamon/cinnamon-gsettings-overrides/default.nix
index a3456755045f..a8d46d578996 100644
--- a/pkgs/desktops/cinnamon/cinnamon-gsettings-overrides/default.nix
+++ b/pkgs/desktops/cinnamon/cinnamon-gsettings-overrides/default.nix
@@ -20,6 +20,8 @@
 
 let
 
+  inherit (lib) concatMapStringsSep;
+
   gsettingsOverridePackages = [
     # from
     mint-artwork
@@ -38,22 +40,21 @@ let
 
 in
 
-with lib;
-
 # TODO: Having https://github.com/NixOS/nixpkgs/issues/54150 would supersede this
-runCommand "cinnamon-gsettings-overrides" { }
+runCommand "cinnamon-gsettings-overrides" { preferLocalBuild = true; }
   ''
-    schema_dir=$out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
+    data_dir="$out/share/gsettings-schemas/nixos-gsettings-overrides"
+    schema_dir="$data_dir/glib-2.0/schemas"
 
-    mkdir -p $schema_dir
+    mkdir -p "$schema_dir"
 
-    ${concatMapStrings (pkg: "cp -rf ${glib.getSchemaPath pkg}/*.xml ${glib.getSchemaPath pkg}/*.gschema.override $schema_dir\n") gsettingsOverridePackages}
+    ${concatMapStringsSep "\n" (pkg: "cp -rf \"${glib.getSchemaPath pkg}\"/*.xml \"${glib.getSchemaPath pkg}\"/*.gschema.override \"$schema_dir\"") gsettingsOverridePackages}
 
-    chmod -R a+w $out/share/gsettings-schemas/nixos-gsettings-overrides
+    chmod -R a+w "$data_dir"
 
-    cat - > $schema_dir/nixos-defaults.gschema.override <<- EOF
+    cat - > "$schema_dir/nixos-defaults.gschema.override" <<- EOF
     ${extraGSettingsOverrides}
     EOF
 
-    ${glib.dev}/bin/glib-compile-schemas $schema_dir
+    ${glib.dev}/bin/glib-compile-schemas --strict "$schema_dir"
   ''
diff --git a/pkgs/desktops/gnome/default.nix b/pkgs/desktops/gnome/default.nix
index a0561ca00300..1169bae6d67e 100644
--- a/pkgs/desktops/gnome/default.nix
+++ b/pkgs/desktops/gnome/default.nix
@@ -123,6 +123,8 @@ lib.makeScope pkgs.newScope (self: with self; {
     withGnome = true;
   };
 
+  nixos-gsettings-overrides = callPackage ./nixos/gsettings-overrides { };
+
   rygel = callPackage ./core/rygel { };
 
   simple-scan = callPackage ./core/simple-scan { };
diff --git a/pkgs/desktops/gnome/nixos/gsettings-overrides/default.nix b/pkgs/desktops/gnome/nixos/gsettings-overrides/default.nix
new file mode 100644
index 000000000000..e75e2eb1e887
--- /dev/null
+++ b/pkgs/desktops/gnome/nixos/gsettings-overrides/default.nix
@@ -0,0 +1,55 @@
+{ lib
+, runCommand
+, gsettings-desktop-schemas
+, gnome-shell
+, glib
+, gnome-flashback
+, nixos-artwork
+, nixos-background-light ? nixos-artwork.wallpapers.simple-blue
+, nixos-background-dark ? nixos-artwork.wallpapers.simple-dark-gray
+, extraGSettingsOverrides ? ""
+, extraGSettingsOverridePackages ? [ ]
+, favoriteAppsOverride ? ""
+, flashbackEnabled ? false
+}:
+
+let
+
+  inherit (lib) concatMapStringsSep;
+
+  gsettingsOverridePackages = [
+    gsettings-desktop-schemas
+    gnome-shell
+  ] ++ lib.optionals flashbackEnabled [
+    gnome-flashback
+  ] ++ extraGSettingsOverridePackages;
+
+  gsettingsOverrides = ''
+    [org.gnome.desktop.background]
+    picture-uri='file://${nixos-background-light.gnomeFilePath}'
+    picture-uri-dark='file://${nixos-background-dark.gnomeFilePath}'
+
+    [org.gnome.desktop.screensaver]
+    picture-uri='file://${nixos-background-dark.gnomeFilePath}'
+
+    ${favoriteAppsOverride}
+
+    ${extraGSettingsOverrides}
+  '';
+
+in
+
+runCommand "gnome-gsettings-overrides" { preferLocalBuild = true; } ''
+  data_dir="$out/share/gsettings-schemas/nixos-gsettings-overrides"
+  schema_dir="$data_dir/glib-2.0/schemas"
+  mkdir -p "$schema_dir"
+
+  ${concatMapStringsSep "\n" (pkg: "cp -rf \"${glib.getSchemaPath pkg}\"/*.xml \"${glib.getSchemaPath pkg}\"/*.gschema.override \"$schema_dir\"") gsettingsOverridePackages}
+
+  chmod -R a+w "$data_dir"
+  cat - > "$schema_dir/nixos-defaults.gschema.override" <<- EOF
+  ${gsettingsOverrides}
+  EOF
+
+  ${glib.dev}/bin/glib-compile-schemas --strict "$schema_dir"
+''
diff --git a/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix b/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
index dd6b10f5c830..41c4c099cf2d 100644
--- a/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
+++ b/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
@@ -10,11 +10,13 @@
 , elementary-dock
 , gsettings-desktop-schemas
 , extraGSettingsOverrides ? ""
-, extraGSettingsOverridePackages ? []
+, extraGSettingsOverridePackages ? [ ]
 }:
 
 let
 
+  inherit (lib) concatMapStringsSep;
+
   gsettingsOverridePackages = [
     elementary-dock
     gnome-settings-daemon
@@ -27,25 +29,24 @@ let
 
 in
 
-with lib;
 
 # TODO: Having https://github.com/NixOS/nixpkgs/issues/54150 would supersede this
-runCommand "elementary-gsettings-desktop-schemas" {}
+runCommand "elementary-gsettings-desktop-schemas" { preferLocalBuild = true; }
   ''
-     schema_dir=$out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
+    data_dir="$out/share/gsettings-schemas/nixos-gsettings-overrides"
+    schema_dir="$data_dir/glib-2.0/schemas"
 
-     mkdir -p $schema_dir
+    mkdir -p "$schema_dir"
+    cp -rf "${glib.getSchemaPath gala}"/*.gschema.override "$schema_dir"
 
-     cp -rf ${glib.getSchemaPath gala}/*.gschema.override $schema_dir
+    ${concatMapStringsSep "\n" (pkg: "cp -rf \"${glib.getSchemaPath pkg}\"/*.xml \"$schema_dir\"") gsettingsOverridePackages}
 
-     ${concatMapStrings (pkg: "cp -rf ${glib.getSchemaPath pkg}/*.xml $schema_dir\n") gsettingsOverridePackages}
+    chmod -R a+w "$data_dir"
+    cp "${glib.getSchemaPath elementary-default-settings}"/* "$schema_dir"
 
-     chmod -R a+w $out/share/gsettings-schemas/nixos-gsettings-overrides
-     cp ${glib.getSchemaPath elementary-default-settings}/* $schema_dir
+    cat - > "$schema_dir/nixos-defaults.gschema.override" <<- EOF
+    ${extraGSettingsOverrides}
+    EOF
 
-     cat - > $schema_dir/nixos-defaults.gschema.override <<- EOF
-     ${extraGSettingsOverrides}
-     EOF
-
-     ${glib.dev}/bin/glib-compile-schemas $schema_dir
+    ${glib.dev}/bin/glib-compile-schemas $schema_dir
   ''