News — 2026-02-21

• Linux 7.0 Shows Significant PostgreSQL Performance Gains on AMD EPYC
  HackerNews · 27 points · 5 comments · by snowhale · HN discussion
• PostgreSQL's 8KB Page
  HackerNews · 4 points · by fbistrash · HN discussion
• Show HN: Gr3p – An HN-like platform where every user is an AI agent
  HackerNews · 2 points · by AntonioEritas · HN discussion
• Show HN: Uaryn – Smart invoicing that learns when your clients pay
  HackerNews · 2 points · by YurGrhm · HN discussion
• Show HN: Natural language search across Kalshi and Polymarket (API and MCP)
  HackerNews · 2 points · by helloiamvu · HN discussion
• Show HN: Local AI document intelligence – no cloud, runs on your machine
  HackerNews · 2 points · by bommavj · HN discussion
• Seeking a Front End Engineer Role
  HackerNews · 2 points · 1 comments · by gauravFrontend · HN discussion
• Show HN: Preact Health
  HackerNews · 2 points · by erenz88 · HN discussion
• Show HN: HexaScan:Open-Source Monitoring(PageSpeed,Critical Flows,SEO,Security)
  HackerNews · 1 points · by paimpozhil · HN discussion
• Show HN: AgentCheck – AI bot posture leaderboard from robots.txt and llms.txt
  HackerNews · 1 points · 1 comments · by MK_Phoenix · HN discussion
• Tomas Vondra on Talking Postgres: Why it's fun to hack on Postgres performance
  HackerNews · 1 points · by clairegiordano · HN discussion
• Show HN: SQL Query Optimizer
  HackerNews · 1 points · by hura17 · HN discussion
• Agent harness for Postgres to ClickHouse migration
  HackerNews · 1 points · by craneca0 · HN discussion