Schema-first GraphQL is where `quarkus-vertx-graphql` starts making sense.
This walkthrough builds a Quarkus service from SDL first, wires GraphQL Java to `/graphql`, scopes queries with `X-Warehouse-Code`, and adds a live subscription without pretending annotations own the contract.
https://www.the-main-thread.com/p/quarkus-vertx-graphql-schema-first
