db-branch releases ZFS database branching tool Beta
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db-branch has released a Beta version that uses ZFS clones to create copy-on-write database branches for MySQL and PostgreSQL, copying no data at creation time, so it can complete in seconds. The tool is deployed on users' own servers, and the official statement says there is no hosted or cloud version. It is still Beta: db-branch says the tool is usable, but API and command-line details may change before 1.0. Its ZFS storage pool exists as files, is slower, and is not suitable for real data. The history module is enabled by default, and paid modules can run for 30 days without a key.
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- Hacker News AIShow HN: db-branch – database branches in seconds for AI agents and CI, via ZFS
db-branch is a self-hosted, Apache-2.0 tool that creates copy-on-write branches of MySQL and PostgreSQL databases in seconds using ZFS clones, with nothing copied at creation. It offers a CLI, REST API, web console and MCP server, plus branch reset, TTL expiry, checkpoints and per-branch version upgrades, and is currently in Beta. It targets AI agent sandboxes, a database per pull request in CI, and version-upgrade checks.
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