{ depotdownloader }:
depotdownloader.overrideAttrs({ patches ? [], version, ... }: {
  patches = if builtins.elem version [ "2.4.7" "2.5.0"] then
    [
      # with this, nix has access to the hashes in the manifest
      ./2_5/0001-emit-json-in-.DepotDownload.patch
      # the manifest can arrive out of order across requests to the same build!
      # luckily that singular reproducibility snag is patched in 1 line.
      ./2_5/0002-ProtoManifest-sort-files-in-constructor.patch
    ]
  else if builtins.elem version [ "2.7.3" ] then
    [
      ./2_7/0001-ProtoManifest-sort-files-in-constructor.patch
      ./2_7/0002-emit-json-in-.DepotDownload.patch
    ]
  else builtins.abort "version of DepotDownloader not covered by patches";
})