Is similar to Hasura, but can be used as a library in Go. Makes a ton of sense if you have an already developed service in go and you want to add /graphql endpoint and have a database schema exposed with your already existing authentication.
Hasura solution would be as a separate service and separate authentication most likely
Dapr's virtual actors sounds like a good idea, but besides the API spec[1] is there any better doc to have a look to an example? How are the callbacks used..?
I want to give it a try, but really seems that is pre-alpha.