[Question] How do I add custom datasources?

[MTRNord]

Hi I would like to use this Map to visualize some map data from https://www.schleswig-holstein.de/DE/Schwerpunkte/openData/openData_node.html This usually means that their data is in weird formats, csv, different coordinate systems... What format is required for this map and how do I add the Data? Information about the coordinate system (I guess its default leaflet?), data placement, formating would be interesting to know.

Additionally, it would be awesome to get the code lines where the parsing happens as I might want to add support for some of those weird formats offered on the opendata platform :)

[MTRNord]

Some example datasets which are the source format are:

• https://opendata.schleswig-holstein.de/dataset/windkraftanlagen
• https://opendata.schleswig-holstein.de/dataset/geplante-trinkwasserschutzgebiete
  (and others that are "special")

I am fine with needing to convert them to a specific format