Hacker News AI Stories — 2026-05-31

Domain expertise has always been the real moat

URL: https://www.brethorsting.com/blog/2026/05/domain-expertise-has-always-been-the-real-moat/

OpenRouter raises $113M Series B

URL: https://openrouter.ai/announcements/series-b

Show HN: Komi-learn – continuous memory and self-improvement for coding agents

URL: https://github.com/kurikomi-labs/komi-learn