🛠️ All DevTools

[Other] Show HN: Postbase – 100% open source Alternative to Firebase and Supabase [video] Postbase – 100% Opensource Alternative to Firebase and Supabase

[Other] Using Git's rerere feature to escape recurring conflict hell

[Other] Rift: Better Alternative to Git Worktrees

[Other] Codex just found a "workaround" of not having sudo on my PC

[CLI Tool] Show HN: Ouijit, an open-source task and terminal manager for coding agents Hi HN, I’m working on Ouijit.<p>It’s a project and task-based terminal session manager that provides a few basic but useful tools for agent workflows:<p>- Terminal sessions in Ouijit have access to the ouijit CLI, and supported agents (Claude, Codex, Pi) can work with it out of the box to manage tasks and customize a personal development workflow<p>- Tasks live on a kanban board that supports hooks for task lifecycle events (eg. ‘Run this script when a task moves to ‘in progress’)<p>I’ve found this simple combination to be very expressive and flexible for adapting to changing workflows.<p>I made the V1 a couple months ago for fun, and have kept at it since a friend shared they had logged an 8 hour work session in it. Along the way I’ve baked in lots of what I believe are table-stakes for this type of tool, like task isolation via Git worktrees, agent working&#x2F;idle status with sound and notifications, diff&#x2F;markdown plan&#x2F;URL previews, and support for VM sandboxing using Lima.<p>It’s free and open source with no login or telemetry, so feedback is highly appreciated.<p>Github: <a href="https:&#x2F;&#x2F;github.com&#x2F;ouijit&#x2F;ouijit" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;ouijit&#x2F;ouijit</a> Website: <a href="https:&#x2F;&#x2F;ouijit.com" rel="nofollow">https:&#x2F;&#x2F;ouijit.com</a>

[Other] Show HN: xxUTF – SIMD Unicode Normalization

[Other] Show HN: Atomic Editor – Obsidian-style live preview for CodeMirror 6

[Other] The open-source repo for docs.github.com

[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

[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