This is a recap of the top 10 posts on Hacker News on Apr 4, 2026.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

• (00:00) - Intro

Artemis II crew take “spectacular” image of Earth
https://www.bbc.com/news/articles/ce8jzr423p9o
https://news.ycombinator.com/item?id=47631118

Tell HN: Anthropic no longer allowing Claude Code subscriptions to use OpenClaw
https://news.ycombinator.com/item?id=47633396

F-15E jet shot down over Iran
https://www.theguardian.com/world/2026/apr/03/us-fighter-jet-confirmed-shot-down-over-iran
https://news.ycombinator.com/item?id=47628326

iNaturalist
https://www.inaturalist.org/
https://news.ycombinator.com/item?id=47629433

The FAA’s flight restriction for drones is an attempt to criminalize filming ICE
https://www.eff.org/deeplinks/2026/04/faas-temporary-flight-restriction-drones-blatant-attempt-criminalize-filming-ice
https://news.ycombinator.com/item?id=47633947

OpenClaw privilege escalation vulnerability
https://nvd.nist.gov/vuln/detail/CVE-2026-33579
https://news.ycombinator.com/item?id=47628608

Delve removed from Y Combinator
https://www.ycombinator.com/companies/delve
https://news.ycombinator.com/item?id=47634690

We replaced RAG with a virtual filesystem for our AI documentation assistant
https://www.mintlify.com/blog/how-we-built-a-virtual-filesystem-for-our-assistant
https://news.ycombinator.com/item?id=47618223

Post Mortem: axios NPM supply chain compromise
https://github.com/axios/axios/issues/10636
https://news.ycombinator.com/item?id=47621792

Gold overtakes U.S. Treasuries as the largest foreign reserve asset
https://economictimes.indiatimes.com/news/international/us/gold-overtakes-u-s-treasuries-as-the-worlds-largest-foreign-reserve-asset-in-2026-can-gold-challenge-the-u-s-dollars-dominance-and-hold-its-ground/articleshow/126420128.cms?from=mdr
https://news.ycombinator.com/item?id=47635056