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Groundhog keeps changes from connected systems as a durable, ordered event history and makes that history available for replay and SQL analysis. It runs as one local binary. Connectors submit events over HTTP; applications, agents, automations, and operators replay or query them through the same API.

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Start here

  • Getting started walks through installation, ingest, replay, publication, query, and verification.
  • Commands documents every command accepted by the binary.
  • HTTP API documents the client interface for ingest, replay, query, and catalog access.
  • Deployment operations explains how to run and maintain an instance safely.

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How the manual is organized

  • Use Groundhog covers the CLI and HTTP API.
  • Understand the system explains events, durability, and query freshness from the outside.
  • Operate a deployment covers configuration, supervision, verification, recovery, and backup.
  • Reference provides concise Unix-manual-style summaries.
Use groundhog --help, groundhog <COMMAND> --help, and groundhog --version to confirm the installed binary’s surface.