~/.config/luakit/binds.lua - play embeded videos in external

-- Play embeded video in external player
    key({}, "Z", function (w)
        local view = w.view
        local uri = view.hovered_uri or view.uri
        if uri then
            luakit.spawn(string.format("urxvt -e youtube-viewer -I %q", uri))
        end
    end),

-- Download and play embeded video in external player
    key({}, "X", function (w)
        local view = w.view
        local uri = view.hovered_uri or view.uri
        if uri then
            luakit.spawn(string.format("urxvt -e cclive -f best '%%t.%%s' "
            .. "--output-dir %q --exec='mplayer \"%%f\"' %q", os.getenv("HOME") .."Downloads/YouTube", uri))
        end
    end),