Daily issue / 2026-05-09
Useful things that surfaced in Hacker News discussions on 2026-05-09. Open the context to see why each one caught our attention—or jump straight to the original thread.
What we found
Bun runtime — experimental Rust rewrite reached 99.8% test compatibility on Linux x64 glibc.
Source discussion: Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc
Editorial paraphrase
HN comments called the result “remarkable” and highlighted the 99.8% test-suite compatibility after starting from thousands of compiler errors.
Read the original threadZed theme builder — visual editor for high-contrast themes and fine-grained styling.
Source discussion: Zed Editor Theme-Builder
Editorial paraphrase
The thread praised the inspector as a game changer and said the theme builder finally made good high-contrast themes practical.
Read the original threadGrapheneOS — Android security OS that patched a VPN leak Google refused to fix.
Source discussion: GrapheneOS fixes Android VPN leak Google refused to patch
Editorial paraphrase
Commenters praised GrapheneOS’s release 2026050400 fix and repeatedly recommended supported Pixels for people who want a hardened Android stack.
Read the original threadPixel 8 phone — recommended GrapheneOS hardware pick thanks to MTE support.
Source discussion: GrapheneOS fixes Android VPN leak Google refused to patch
Editorial paraphrase
A commenter said Pixel 8 is preferable because it adds MTE support, while others warned that carrier-sold Pixels often lack unlockable bootloaders.
Read the original threadBen Eater's 8-bit computer — hands-on DIY CPU project for learning computer architecture.
Source discussion: Building the TD4 4-Bit CPU
Editorial paraphrase
A commenter called it “the most excellent ben-eater’s 8bit-computer” and linked it as a strong learning resource.
Read the original threadNand to Tetris — from-first-principles systems course that builds a computer from logic gates.
Source discussion: Building the TD4 4-Bit CPU
Editorial paraphrase
Commenters grouped it with Ben Eater’s build as a top-tier path from simple gates to a working computer.
Read the original threadYouTube explainer — the long road to making the blue LED.
Source discussion: How LEDs are made (2014)
Editorial paraphrase
The LED manufacturing thread described the video as “a non-frantic (related) video worth the watch.”
Read the original thread