I finally have a working map view in my app #PicPlanner.
I used the new #gnome library #libshumate which is the #gtk4 version of #libchamplain. The ShumateSimpleMap widget is quite convenient to use! The documentation however is nearly not existing and it was at least for me quite an effort to create a working widget. But now it looks nice 😊👍
In the end, only a few lines of code were necessary but to figure out how to connect to a map provider was not that easy. I didn't knew that there was a "load_defaults" option which is nice 😅