Hacker News on 30 September 2021

• PostgreSQL 14
• Understanding Awk
• Show HN: Hacker News client with a twist
• Cloudflare's Disruption
• Chip shortage leads carmaker Opel to shut German plant until 2022
• Always-on Processor magic: How Find My works while iPhone is powered off
• A bit of math around Cloudflare's R2 pricing model
• DMV approves Cruise and Waymo for commercial service in parts of Bay Area
• U.S. declares more than 20 species extinct after exhaustive searches
• The Art of Linear Algebra [pdf]