qt6.qtwebengine: remove outdated postFixup phase

    export NINJAFLAGS="-j$NIX_BUILD_CORES"

  '';

  postFixup = ''

    # This is required at runtime

    mkdir -p $out/libexec

    mv $dev/libexec/QtWebEngineProcess $out/libexec

  '';

  meta = with lib; {

    description = "A web engine based on the Chromium web browser";

    platforms = platforms.linux;