{ lib, stdenv, fetchurl, ... }:
let
  version = "2.11.0";
  platform = stdenv.hostPlatform;
  archive =
    if platform.isLinux then
      {
        url = "https://downloads.slack-edge.com/slack-cli/slack_cli_${version}_linux_64-bit.tar.gz";
        sha256 = "1sk6hb1m6j327fp8zlnw8bd8sni1wfwgc95wxqaxmr5gcg1fxqks";
      }
    else if platform.isDarwin then
      {
        url = "https://downloads.slack-edge.com/slack-cli/slack_cli_${version}_macOS_64-bit.tar.gz";
        sha256 = "0ln6mf66a2n8yysq2x721h0j4s403y3967mqkh7jjh19mx2823mq";
      }
    else throw "Unsupported platform ${platform}";
in
stdenv.mkDerivation rec {
  pname = "slack-cli";
  inherit version;

  src = fetchurl {
    inherit (archive) url sha256;
  };

  installPhase = ''
    mkdir -p $out/bin
    cp slack $out/bin/slack
  '';

  meta = {
    platforms = lib.platforms.unix;
  };
}