Hex.tech has made ClickHouse available as a data source, enabling users to quickly and easily build real-time applications. The authors built a simple application called "ClickHub" using Hex.tech's tools, collecting the full commit history for 50k GitHub repositories. They utilized the KeeperMap table engine, which provides linearizable writes and sequentially consistent reads, to model a queue that prevents duplicate jobs from being scheduled and ensures atomic updates. The application uses ClickHouse Cloud for data storage and can be easily reproduced on smaller self-managed or development instances. Hex.tech offers a 14-day trial, allowing users to try the platform without committing to it. The authors recommend using Hex.tech mainly for proof-of-concept work, notebooks, and internal-facing analytical applications, with plans to expand its capabilities in future iterations.