OpsHelm, a platform for managing cloud infrastructure changes, successfully reduced its streaming costs by migrating from AWS MSK and NATS to Aiven's Diskless Kafka in under a month, achieving a 78% cost reduction. This migration eliminated cross-cloud networking fees and consolidated multiple storage layers into a single logical event bus across multiple regions and accounts. The switch to Aiven's BYOC (Bring Your Own Cloud) model provided OpsHelm with both enterprise-grade Kafka management and cost transparency, without the operational complexities of managing brokers. OpsHelm's previous attempts with MSK and NATS faced significant challenges, including high costs, reliability issues, and scaling difficulties. However, the new Diskless Kafka approach provided predictable costs, strong data durability, multi-cloud flexibility, and simplified operations, all while maintaining acceptable latency levels for its audit and compliance needs. This transition was facilitated by Aiven’s expertise, enabling OpsHelm to streamline its architecture from over 100 topics to 30 optimized streams, paving the way for future enhancements such as Glacier tiering and advanced drift detection.