🛠️ All DevTools

[Other] The Website Specification

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

[Other] Show HN: Live, system-wide USB transfer sniffer in eBPF

[DevOps] Show HN: Lite-Harness – Self-Hosted Cursor Agents (Use Claude Code/OpenCode) We built this Dockerfile because we wanted a simple harness server to run our agents and get memory, durable sessions, cron scheduling, and a vault, out of the box.

[IDE/Editor] Cheese Paper: a text editor specifically designed for writing

[Other] A new way to build chips: Sequentially stacking silicon to extend Moore's Law

[CLI Tool] Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It&#x27;s a single Python file, stdlib only, no dependencies — just run breathe and follow the bar.<p>I&#x27;m a cardiology patient (HFrEF). Slow breathing at resonance frequency is one of the few non-pharmacological interventions shown to improve cardiac vagal tone and baroreflex sensitivity (Bernardi et al., Circulation 2002; Lancet 1998). I wanted a frictionless daily habit tool — no app store, no account, no subscription, just open terminal and go.<p>Design constraints, all grounded in the clinical literature:<p>- No breath retention — Valsalva risk in cardiac patients<p>- No rapid breathing — minimum 8-second cycles<p>- Exhale ≤ 2x inhale — no evidence for extreme ratios<p>- Immediate exit, always — q or Ctrl+C restores the terminal even on crash<p>The README includes a resonance frequency measurement protocol for anyone with a chest-strap HRV monitor who wants to find their individual optimum instead of using the 6 bpm default.<p>macOS only (uses afplay for audio cues). MIT licensed.<p>pip install breathe-cli<p>or<p>brew tap marekkowalczyk&#x2F;breathe &amp;&amp; brew install breathe.

[Monitoring/Observability] Show HN: 500 years of Joseon court omens as an observability dashboard

[Other] Zig ELF Linker Improvements Devlog

[Other] Using safe-area-inset to build mobile-safe layouts

[Build/Deploy] Zig: Build System Reworked

[Other] Show HN: Open-source private home security camera system (end-to-end encryption) Hey everyone,<p>I previously introduced an open source private home security camera in 2024, which uses OpenMLS for end-to-end encryption: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=42284412">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=42284412</a>.<p>It was called Privastead then and it&#x27;s now renamed to Secluso.<p>John Kaczman found my project from here and has been working on it with me over the last year and half. We&#x27;ve made a lot of improvements to the software, which we would like to share with you:<p>- You can now set this up on your Raspberry Pi in less than 5 minutes with no technical expertise using our easy-to-use GUI deploy tool. We&#x27;ve put together a comprehensive build-your-own guide that walks you through the required steps (you can find a link at the top of the repository README).<p>- We use a customized, minimal OS based on the Yocto project for the camera.<p>- Every part of our stack except for the iOS app has reproducible builds. This includes our Android app, camera&#x2F;server binaries, deploy tool, and the aforementioned OS.<p>- We&#x27;ve re-designed our mobile app, which is now on the iOS App Store and Google Play store.<p>- We now support UnifiedPush for more privacy-preserving push notifications.<p>Looking forward to seeing what you all think!

[CLI Tool] Show HN: Promptloop – create, run, and improve prompt evals from the terminal a CLI agent for prompt evaluation loopsw

[Other] A platform for reproducible world model research and evaluation

[Other] Bijou64: A variable-length integer encoding

[Other] Show HN: Repolog, website audit for SEO, performance, security, and AI readiness

[Code Quality] Show HN: AISlop, a CLI for catching AI generated code smells Hi, I’m Kenny, I’ve been building aislop. I starting working on this after using Claude Code, codex and opencode several times and noticing some slops. They aren’t syntax and passes most tests, they are patterns like empty catch blocks, useless comments, duplicated helpers, dead code and many more. So I built a tool to scan and check for these patterns and wired it into hooks so after each tool call, the agent checks for the slops.<p>You can try it out with npx aislop scan.<p>It’s all local and no code is transferred. Thank you.

[Other] Local Git Remotes

[Other] Data Engineering Zoomcamp is a free 9-week course on building production-ready data pipelines. The next cohort starts in January 2026. Join the course here 👇🏼

[Other] Cursor plugin specification and official plugins