nixos/lib/util.nix

{lib, ...}:
with lib; {
  recursiveMerge = attrList: let
    f = attrPath:
      zipAttrsWith (
        n: values:
          if tail values == []
          then head values
          else if all isList values
          then unique (concatLists values)
          else if all isAttrs values
          then f (attrPath ++ [n]) values
          else last values
      );
  in
    f [] attrList;
}