I run a small self-hosted observability tool on the cheapest VPS I could find on purpose: 2 cores, 2 GB RAM, 20 GB SATA SSD . It ingests errors, traces and metrics from two low-traffic sites of mine. The stack is three containers — a Go app, PostgreSQL, and ClickHouse.
Source: [Dev.to](https://dev.to/otezvikentiy/my-idle-clickhouse-was-merging-11-million-rows-every-30-seconds-2d4i)