This is a recap of the top 10 posts on Hacker News on May 27, 2025.

CSS Minecraft
https://benjaminaster.com/css-minecraft/
https://news.ycombinator.com/item?id=44100148

Hacker News now runs on top of Common Lisp
https://lisp-journey.gitlab.io/blog/hacker-news-now-runs-on-top-of-common-lisp/
https://news.ycombinator.com/item?id=44099006

Owls in Towels
https://owlsintowels.org/
https://news.ycombinator.com/item?id=44101349

A new class of materials that can passively harvest water from air
https://blog.seas.upenn.edu/penn-engineers-discover-a-new-class-of-materials-that-passively-harvest-water-from-air/
https://news.ycombinator.com/item?id=44097144

TIL: timeout in Bash scripts
https://heitorpb.github.io/bla/timeout/
https://news.ycombinator.com/item?id=44096395

Lossless video compression using Bloom filters
https://github.com/ross39/new_bloom_filter_repo/blob/main/README.md
https://news.ycombinator.com/item?id=44100179

Show HN: PgDog – Shard Postgres without extensions
https://github.com/pgdogdev/pgdog
https://news.ycombinator.com/item?id=44099187

Trying to teach in the age of the AI homework machine
https://www.solarshades.club/p/dispatch-from-the-trenches-of-the
https://news.ycombinator.com/item?id=44100677

GitHub MCP exploited: Accessing private repositories via MCP
https://invariantlabs.ai/blog/mcp-github-vulnerability
https://news.ycombinator.com/item?id=44097390

TSMC bets on unorthodox optical tech
https://spectrum.ieee.org/microled-optical-chiplet
https://news.ycombinator.com/item?id=44099407