1ec5 left a comment (openstreetmap/openstreetmap-website#6234)
> [A symbol
> layer](https://maplibre.org/maplibre-gl-js/docs/examples/center-the-map-on-a-clicked-symbol/)
> using the runtime styling API. This is the traditional MapLibre approach
> with better performance and the ability to have the symbol underlap other
> layers, but interactivity is harder to implement. This is the same API we’d
> use to overlay an element’s geometry or a route line on the map, but it would
> probably be overkill for just a marker.
Once we get to migrating the main map on the homepage, we’ll need to replace
[leaflet-osm](https://github.com/openstreetmap/leaflet-osm/)’s
`L.OSM.DataLayer` class with an alternative library that carries no dependency
on Leaflet. We use this class to overlay element geometries from the OSM API’s
/full response.
MapLibre GL JS has built-in support for GeoJSON overlays, so we only need
a library for the conversion from that JSON format to GeoJSON, but not for the
overlay classes themselves. I know of three such libraries:
[osmtogeojson](https://github.com/tyrasd/osmtogeojson/),
[osm2geojson-lite](https://github.com/tibetty/osm2geojson-lite/),
[osm2geojson-ultra](https://github.com/dschep/osm2geojson-ultra/). The last one
is the newest claims to be much more performant.
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