Although the documentation says: https://github.com/mapbox/simplestyle-spec/tree/master/1.1.0 maki icons will be supported as markers, there are some maki icons not supported.
e.g. mountain, which is essential as there are many articles on mountains and this is the natural icon, I guess.
(same for volcano, stadium, castle)
See https://de.wikipedia.org/wiki/Hilfe:Kartographer/Maki_Icons#/maplink/0 for the gaps. (generated with <maplink> iterating over all the icons)
With the current stack is not possible to have the latest maki running, unless we migrate to libraries that use makiwich. That is also a problem because we have third-party libraries relying on makizushi, like geojson-mapnikify which is a dependency for tilelive-overlay, and they are following the same path as makizushi.
It's a considerable change of codebase that we are not able to work right now.
This task was mentioned at the 2021 Community Wishlist Survey (https://meta.wikimedia.org/wiki/Community_Wishlist_Survey_2021/Miscellaneous/Kartographer_icon_improvements), which got the No. 41 out of 268 proposals, with 59 votes.