Congrats on the launch! As a long-time user of Meteor I'm always excited to see other approaches to similar issues.

One thing that I always found a bit lacking with Meteor was pagination. The problem in a nutshell is that the client doesn't know how much data is potentially available on the server unless it requests it, making things like showing "page 1 of 12" type result counts tricky (I talk more about it here: https://www.discovermeteor.com/blog/pagination-problems-mete... )

I'd be curious to know how Horizon deals with that problem?