.4/dist/leaflet.css"
      integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
      crossorigin="">
    <script
      src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
      integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo="
      crossorigin="">
    </script>

    <!-- Flight Indicators (vanilla JS by teocci) -->
    <link rel="stylesheet" href="{{ url_for('static', filename='css/flight-indicators.css') }}">
    <script src="{{ url_for('static', filename='js/flight-indicators.