Omnismith Opts for Self-Hosted Prometheus and Grafana to Cut Monitoring Costs

Omnismith, a data-intensive platform, has adopted a self-hosted observability stack using Prometheus, Grafana, and dedicated exporters for PostgreSQL and Kafka instead of managed SaaS monitoring tools. The decision was driven by the high data-ingest pricing of managed cloud solutions, which can quickly strain budgets for early-to-mid-stage projects. The architecture uses postgres-exporter and kafka-exporter to feed infrastructure metrics into Prometheus, which scrapes and stores time-series data, while Grafana handles dashboards and alerting. This approach establishes a baseline of infrastructure visibility without adding latency to the application or requiring complex app-level instrumentation upfront. The team describes this as a pragmatic Phase 1 strategy, with the stack designed to scale by simply adding new exporters as infrastructure complexity grows.