libshumate
libshumate is a C library providing a GtkWidget to display maps in GTK4 applications. It supports numerous free map sources such as OpenStreetMap, OpenCycleMap, OpenAerialMap and Maps for free.
libshumate is named after Jessamine Shumate, an American artist, historian, and cartographer (Wikipedia). libshumate is forked from, and tries to follow similar principles in the API as libchamplain (which was GTK3 only). The library is as of now still in early development.
Getting in Touch
Development Resources
Git: git clone https://gitlab.gnome.org/GNOME/libshumate.git