settings/stylix.nix

@@ -83,20 +83,16 @@
       papirusDark = pkgs.runCommand "papirus-dark-${closestPfColor}" {
         nativeBuildInputs = [ pkgs.papirus-folders ];
       } ''
-        # Work in a fully writable temp tree so papirus-folders can find and
-        # modify the theme without fighting the nix sandbox path structure.
-        tmpdata=$(mktemp -d)
-        mkdir -p $tmpdata/icons
-        cp -r ${pkgs.papirus-icon-theme}/share/icons/Papirus-Dark $tmpdata/icons/
-        chmod -R u+w $tmpdata/icons/Papirus-Dark
+        # Copy theme to a writable temp dir and pass its absolute path to
+        # papirus-folders so it bypasses XDG lookup entirely.
+        themedir=$(mktemp -d)/Papirus-Dark
+        cp -r ${pkgs.papirus-icon-theme}/share/icons/Papirus-Dark "$themedir"
+        chmod -R u+w "$themedir"
 
-        export HOME=$(mktemp -d)
-        export XDG_DATA_HOME=$tmpdata
-
-        papirus-folders -C ${closestPfColor} -t Papirus-Dark
+        papirus-folders -C ${closestPfColor} -t "$themedir"
 
         mkdir -p $out/share/icons
-        cp -r $tmpdata/icons/Papirus-Dark $out/share/icons/
+        cp -r "$themedir" $out/share/icons/Papirus-Dark
       '';
 
       # Map matugen's Material You placeholders to the closest base16 slot