In [ ]:
#include "xwidgets/xhtml.hpp"

#include "xleaflet/xmap.hpp"
#include "xleaflet/xmarker.hpp"

auto html = xw::html::initialize()
    .value("Hello from an <b>xwidget</b> in an <b>xmarker</b>!")
    .finalize();

std::array<double, 2> center = {52.204793, 360.121558};

auto map = xlf::map::initialize()
    .center(center)
    .zoom(15)
    .finalize();

auto marker = xlf::marker::initialize()
    .location(center)
    .draggable(false)
    .popup(html)
    .finalize();
map.add_layer(marker);

map