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Product · Saturday, 1 August 2026 · Issue 61 · 11 stories

Compute Costs Surge 10x, Engineering Systems Become AI Moat

Product Management

Barbell Product Roles: Why AI Shifts PMs to Decision‑Making

As AI automates code, product managers spend far less time building and far more time deciding which problems to solve and how to sell them. Mironov calls this the ‘barbell’ role, heavy on market discovery at one end and go‑to‑market execution at the other, with engineering sandwiched in between. Ignoring the split risks building tech no one buys.

Strategy & Growth

Tools & Launches

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.

github.com ↗7 min read at source

You’re caught up.

That was all 11 stories in the 1 August issue.