P.01Exactly-Once vs At-Least-Once Delivery, Explained
Almost every queue advertising exactly-once actually gives you at-least-once plus a way to make your handler idempotent. The real distinction, and why.
P.01Almost every queue advertising exactly-once actually gives you at-least-once plus a way to make your handler idempotent. The real distinction, and why.
P.02Pessimistic locking stops one request from starting; optimistic lets both run and catches the conflict at the end. How each works, with SQL, and how to pick.
P.03Soft delete sounds like the safe default, but it quietly breaks unique constraints, foreign keys, and query performance unless you design for it up front.
P.04Full rewrites fail because the business can't stand still for two years, not because the new code is bad. How the strangler fig moves traffic piece by piece.
P.05METR's randomized trial found AI tools made experienced developers 19% slower, then flagged its own follow-up as unreliable. What the messy data supports.
P.06OpenAI's full-duplex voice model powers ChatGPT Voice but isn't in the API yet. What GPT-Live-1 changed, and what to build with right now instead.
P.07Chrome and Edge can prerender the next page before a user clicks, with no SPA rewrite. How the Speculation Rules API works, what it wastes, and shipping it.
P.08EM hires fail for different reasons than IC hires. What to actually test: handling underperformance, technical debt calls, and pushback with the business.
P.09Android 17 (API 37) brings mandatory large-screen resizability, a local network permission, and stricter media rules. What to fix, and by when.
P.10BullMQ for Node, Celery for Python, Sidekiq for Ruby, and Temporal or a cloud queue when you need durability without owning a broker. The reasoning.
P.11CISA added CVE-2025-68686, a FortiOS SSL-VPN symlink persistence bypass, on July 27. It only bites devices compromised earlier and never forensically cleaned.
P.12OAuth 2.1 is still an IETF draft, but most providers enforce it already. What changed from 2.0, plus a checklist for auditing your own implementation.