Being working on this fun little project for a few weeks. https://github.com/dasiths/NEventLite
It is a light weight framework to get your event sourcing project up and running fast. Every aspect of it has been architectured to be replaced by your own implementation if required. It won’t restrict you like some of the bigger CQRS frameworks do. Give it a try.
Looking for some keen individuals to come and make it their own. Specially DRYing the .NET core code base.
It’s a good way to wrap your head around the concept of event sourcing.