Show HN: Petal, Open-source CoScreen/ScreenHero Finally Free

Petal presents a free desktop app for collaborative screen sharing and remote control, with cloud, self-hosted and build-your-own options.

What A Clock-Driven Close Looks Like In “Nightmarket — Mercado De Medianoche”

A ThorstenMeyerAI.com field guide describes how time-driven visual changes make a digital night market appear to wind down.

How I Put Jev’s Visual AI Through A 30-Image Trial

A 30-image trial tested Jev 1.14 and 1.13 on headline matching and product identification after TypeSafe added opt-in image support.

Iosevka Is An Open-source, Sans-serif And Slab-serif Monospace Font

Iosevka is an open-source typeface family with monospace, slab-serif and quasi-proportional variants for coding, terminals and documents.

Building Resilient AI-powered Software, And Planning For When Things Go Wrong

An excerpt from Sam Newman’s new book covers disaster recovery, AI model dependencies and planning for outages in software systems.

A Retirement Countdown And The Lessons Of Building With AI

A developer says an AI coding agent helped build a free retirement countdown app in five days, while he directed, tested and approved the work.

FrontierCode: How To Navigate Maintainer Review Of AI Contributions

Artificial Analysis tested 23 models on FrontierCode, where Claude Opus 5.5 led but passed every blocking check in 57.7% of attempts.

The Tilde In Your PATH May Not Be Your HOME

A shell configuration warning highlights how quoted tildes in PATH can remain literal, directing command lookup to the wrong directory.

Show HN: Proton Drive For Linux

An early, unofficial Linux tool mounts Proton Drive as a local folder, loading files on demand and sending edits back through Proton’s API.

Whistle: Speech To Text In 16.9 MB

Cactus Compute says its 16.9 MB Whistle model transcribes seven languages on-device, with reported 11.1 ms first-token time on an Apple M4 Pro.