CoreWF concepts, .net core 3.1 and .net 5.0

Hi community,

How easy is to implement a workflow designer and workflow execution in custom applications with .net core 3.1 (later .net 5) using CoreWF (https://github.com/UiPath-Open/corewf)?
How are the debugging capabilities of the designer? Can you extend it with custom actions?

Are there any risks?