CYBERTEC has open-sourced pg_hardstorage, a new PostgreSQL backup tool released under Apache 2.0 with no CLA or enterprise edition. After more than a year in real customer deployments, the tool aims to provide a credible alternative to pgBackRest, Barman, and WAL-G rather than replace them. Key design goals include eliminating the archive_command requirement, using backpressure via replication slots, supporting dual-stream WAL deduplication across primary and replica, and providing a migration shim for side-by-side cutover. The project follows a deliberately minimal philosophy, omitting a plugin system and built-in dashboards in favor of simplicity. Bug reports are encouraged as runnable testkit scenarios.
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