Valentyn Druzhynin·Jan 31Scaling PostgreSQL to 800 Million Users: Key Lessons from OpenAI’s Infrastructure JourneyOn January 22, 2026, OpenAI published a great technical article: “Scaling PostgreSQL to power 800 million ChatGPT users”. What makes this…
Valentyn Druzhynin·Jun 25, 2025Apache Airflow 3.0: What’s New and Is It Worth Upgrading?Apache Airflow 3.0 marks a significant evolution in workflow orchestration. Released in April 2025, Airflow has taken decisive steps toward…
Valentyn Druzhynin·Apr 6, 2025My Honest Review of the Machine Learning Specialization on CourseraMy Honest Review of the Machine…Hey everyone! I’m Valentyn, and today I’d like to share my experience with the Machine Learning Specialization on Coursera. It’s the…A response icon2A response icon2
