Merge master into staging-next

pkgs/applications/science/medicine/dcmtk/default.nix

···
     homepage = "https://dicom.offis.de/dcmtk";
     license = licenses.bsd3;
     maintainers = with maintainers; [ iimog ];
-    platforms = platforms.linux;
+    platforms = with platforms; linux ++ darwin;
   };
 }