Electric motors with no rare earths

Renault Group uses rare-earth-free EESM motors in EVs from Zoe to Renault 5, cutting reliance on China’s supply chain. Its Cléon-built next-gen motor arrives in 2027: 200 kW, 800 volts, 30% smaller.

Open source AI must win

Renting intelligence from closed labs risks losing operational freedom and public capacity. America needs open access to run, inspect, and improve AI systems.

On CPU Physics and CPU Cycles

The chapter explains CPU efficiency, signal delays, and the role of caches in modern processors. It details how 64-bit CPUs handle operations and data movement with varying speeds.

Twenty One Zero-Days in FFmpeg

depthfirst’s security agent found 21 FFmpeg zero-days, including bugs latent for up to 23 years. It produced reproducible PoCs for about $1k and demonstrated an RCE primitive.

Show HN Putt.day a daily mini golf game

putt.dayA daily hole of mini golf.No. 32 · June 13, 2026How to playGrab the ball, drag back, let go. Pull further to hit harder.Drag anywhere else to look around; pinch or scroll to zoom.Get it in the hole in as few strokes as you can.Water sends you back to where you were.One new hole a day. Your first finish counts. Old days are in the calendar.Statscalendar

Launch HN BitBoard (YC P25) – Analytics Workspace for Agents

Use from your favorite AI tools. Generate dashboards and analysis in BitBoard from your favorite AI chat or coding agent. Turn your analysis into connected, durable assets instead of one-off chat threads.

Leaving Mozilla

Mozilla veteran leaving after 15 years urges mentoring and listening to the community. They say Firefox thrives as a niche, open-source browser, not by copying big rivals or chasing DAU.

Tectonic: A modernized, complete, self-contained TeX/LaTeX engine

Tectonic is a modern TeX-to-PDF system that downloads needed LaTeX resources, automates builds, avoids intermediate files by default, and supports Unicode and OpenType fonts. It is open-source Rust-based software built on XeTeX and designed for reproducible document compilation.

Automating Myself Out of Development

The author describes evolving from hands-on Claude Code sessions to scheduled, isolated automation using EC2 and GitHub issues as a process board. The shift improved delegation but still required careful security, context management, and human checkpoints.

A key remapping daemon for Linux

keyd is a fast Linux daemon for system-wide keyboard remapping, layers, and modifier behavior. It aims to be simple, display-server agnostic, and stable via tagged releases.

SkillSpector

SkillSpector scans AI agent skills for vulnerabilities, malicious patterns, and CVEs across many input formats. It combines static analysis, optional LLM review, risk scoring, and offline-capable OSV.dev lookups.

Adaptive PDFs

Adaptive PDFs could show normal layouts to people while giving machines clean Markdown via embedded replacement text. This may improve LLM parsing with low overhead, though tool support varies.