Claude, Start My Database
The author describes creating EventSourcingDB, a new open-source event store database written in Go. After struggling with existing solutions like EventStoreDB and PostgreSQL for event sourcing, they built a lightweight, HTTP-native event store focused on simplicity and developer experience.
Background
- Event Sourcing is a software pattern that stores state as a sequence of events (an "event log") rather than overwriting a current snapshot. Every change is an append-only event, making the system auditable and debuggable.
- Event Sourcing DB is an open-source database purpose-built for this pattern. It treats the event log as a first-class, queryable data structure, unlike general-purpose databases that bolt on event sourcing as an add-on.
- The title and theme reference Claude, start the reactor (from Marvel's Iron Man) — suggesting the DB can be controlled via natural-language commands given to an AI agent (Claude, Anthropic's LLM).
- The company behind Event Sourcing DB is mainly developer-focused; this blog post signals a vision where developers can interact with their event store conversationally through an LLM, lowering the barrier to using event-sourced architectures.