Yeah, I went down the Relay/GraphQL rabbit hole for a good 1.5 months last year, but unfortunately there is a tremendous amount of work to set up GraphQL servers to even get your data out to Relay, and it is not real-time at the moment (although the 'community' appears to be work on it. I so wish Meteor would provide a drop-in module for just the DDP, I don't even care if its Mongo, their real-time subscription works.