The Oso team will be there and we'd like to meet some folks in person. We've found a lot of success with GraphQL users using our product to solve their authorization problem. Here's an article to read more: https://www.osohq.com/post/graphql-authorization
Feel free to reach out to me directly (erin at osohq dot com) if you're interested. Our co-founders, Graham Neray and Sam Scott will be there.
Cheers!