{
  lib,
  fetchzip,
}:

let
  dartVersion = "@dart_version@";
  platform = "@platform@";
  channel = if lib.strings.hasSuffix ".beta" dartVersion then "beta" else "stable";
in
{
  x86_64-linux = fetchzip {
    url = "https://storage.googleapis.com/dart-archive/channels/${channel}/release/${dartVersion}/sdk/dartsdk-linux-x64-release.zip";
    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };
  aarch64-linux = fetchzip {
    url = "https://storage.googleapis.com/dart-archive/channels/${channel}/release/${dartVersion}/sdk/dartsdk-linux-arm64-release.zip";
    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };
  x86_64-darwin = fetchzip {
    url = "https://storage.googleapis.com/dart-archive/channels/${channel}/release/${dartVersion}/sdk/dartsdk-macos-x64-release.zip";
    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };
  aarch64-darwin = fetchzip {
    url = "https://storage.googleapis.com/dart-archive/channels/${channel}/release/${dartVersion}/sdk/dartsdk-macos-arm64-release.zip";
    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };
}
.${platform}