{
  system,
  inputs,
  ...
}: let
  pkgs = import inputs.nixpkgs {
    inherit system;
    config.allowUnfree = true;
  };

  version = "0.7.7.1";

  srcs = {
    x86_64-linux = {
      url = "https://github.com/imputnet/helium-linux/releases/download/${version}/helium-${version}-x86_64_linux.tar.xz";
      hash = "sha256-aY9GwIDPTcskm55NluSyxkCHC6drd6BdBaNYZhrzlRE=";
    };
    aarch64-linux = {
      url = "https://github.com/imputnet/helium-linux/releases/download/${version}/helium-${version}-arm64_linux.tar.xz";
      hash = "sha256-76hJ19/bHzdE1//keGF9imYkMHOy6VHpA56bxEkgwgA=";
    };
    x86_64-darwin = {
      url = "https://github.com/imputnet/helium-macos/releases/download/${version}/helium_${version}_x86_64-macos.dmg";
      hash = "sha256-LtxzeBkECRML+q+qtcTljuFoPefuZdk1PIcdDqSGl0Y=";
    };
    aarch64-darwin = {
      url = "https://github.com/imputnet/helium-macos/releases/download/${version}/helium_${version}_arm64-macos.dmg";
      hash = "sha256-iFE2OigeG+sDfGKmuqqb6LKUyxhZ2Jcti+jLzeHMLYM=";
    };
  };
in
  pkgs.stdenv.mkDerivation {
    pname = "helium";
    inherit version;

    src = pkgs.fetchurl (srcs.${system} or (throw "Unsupported system: ${system}"));

    nativeBuildInputs = with pkgs;
      [
        makeWrapper
      ]
      ++ pkgs.lib.optionals stdenv.isLinux [
        autoPatchelfHook
        copyDesktopItems
      ]
      ++ pkgs.lib.optionals stdenv.isDarwin [
        _7zz
      ];

    unpackCmd = pkgs.lib.optionalString pkgs.stdenv.isDarwin ''
      7zz x $src
    '';

    buildInputs = with pkgs;
      pkgs.lib.optionals stdenv.isLinux [
        alsa-lib
        at-spi2-atk
        at-spi2-core
        atk
        cairo
        cups
        dbus
        expat
        fontconfig
        freetype
        gdk-pixbuf
        glib
        gtk3
        libGL
        xorg.libX11
        xorg.libXScrnSaver
        xorg.libXcomposite
        xorg.libXcursor
        xorg.libXdamage
        xorg.libXext
        xorg.libXfixes
        xorg.libXi
        xorg.libXrandr
        xorg.libXrender
        xorg.libXtst
        libdrm
        libgbm
        libpulseaudio
        xorg.libxcb
        libxkbcommon
        mesa
        nspr
        nss
        pango
        pipewire
        systemd
        vulkan-loader
        wayland
        libxshmfence
        libuuid
        kdePackages.qtbase
      ];

    autoPatchelfIgnoreMissingDeps = pkgs.lib.optionals pkgs.stdenv.isLinux [
      "libQt6Core.so.6"
      "libQt6Gui.so.6"
      "libQt6Widgets.so.6"
      "libQt5Core.so.5"
      "libQt5Gui.so.5"
      "libQt5Widgets.so.5"
    ];

    dontWrapQtApps = pkgs.stdenv.isLinux;

    installPhase =
      if pkgs.stdenv.isDarwin
      then ''
        runHook preInstall

        mkdir -p $out/Applications/Helium.app
        cp -r . $out/Applications/Helium.app

        mkdir -p $out/bin
        makeWrapper $out/Applications/Helium.app/Contents/MacOS/Helium $out/bin/helium \
          --add-flags "--disable-component-update" \
          --add-flags "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" \
          --add-flags "--check-for-update-interval=0" \
          --add-flags "--disable-background-networking"

        runHook postInstall
      ''
      else ''
        runHook preInstall

        mkdir -p $out/bin $out/opt/helium
        cp -r * $out/opt/helium

        # The binary is named 'chrome' in the tarball
        makeWrapper $out/opt/helium/chrome $out/bin/helium \
          --prefix LD_LIBRARY_PATH : "${pkgs.lib.makeLibraryPath (with pkgs; [
          libGL
          libvdpau
          libva
          pipewire
        ])}" \
          --add-flags "--ozone-platform-hint=auto" \
          --add-flags "--enable-features=WaylandWindowDecorations" \
          --add-flags "--disable-component-update" \
          --add-flags "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" \
          --add-flags "--check-for-update-interval=0" \
          --add-flags "--disable-background-networking"

        # Install icon
        mkdir -p $out/share/icons/hicolor/256x256/apps
        cp $out/opt/helium/product_logo_256.png $out/share/icons/hicolor/256x256/apps/helium.png

        runHook postInstall
      '';

    desktopItems = pkgs.lib.optionals pkgs.stdenv.isLinux [
      (pkgs.makeDesktopItem {
        name = "helium";
        exec = "helium %U";
        icon = "helium";
        desktopName = "Helium";
        genericName = "Web Browser";
        categories = ["Network" "WebBrowser"];
        terminal = false;
        mimeTypes = ["text/html" "text/xml" "application/xhtml+xml" "x-scheme-handler/http" "x-scheme-handler/https"];
      })
    ];

    meta = with pkgs.lib; {
      description = "Private, fast, and honest web browser based on ungoogled-chromium";
      homepage = "https://helium.computer/";
      license = licenses.gpl3Only;
      platforms = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
      mainProgram = "helium";
    };
  }