Penca lets you branch and version a single DB copy for OLTP and OLAP
Penca is an open‑source engine that stores data as columnar files on object storage and layers a Postgres hot tier for ACID writes. It lets you create cheap, full‑read‑write branches of the same dataset, so transactional and analytical queries share one copy without CDC or ETL. Teams can experiment, audit changes, and run analytics without duplicating data.