Tuesday · April 28, 2026

Morning Edition

Twenty stories from Hacker News and Pinboard Popular, curated for tech-leaning readers who care about Claude Code, the Apple ecosystem, and privacy.

In this issue

  1. Microsoft and OpenAI end their exclusive and revenue-sharing deal
  2. GitHub Copilot is moving to usage-based billing
  3. 4TB of voice samples just stolen from 40k AI contractors at Mercor
  4. US Supreme Court reviews police use of cell location data
  5. Networking changes coming in macOS 27
  6. Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview
  7. Quarkdown – Markdown with Superpowers
  8. Pgbackrest is no longer being maintained
  9. Talkie: a 13B vintage language model from 1930
  10. The woes of sanitizing SVGs
  11. Claude-powered AI coding agent deletes entire company database in 9 seconds — backups zapped, after Cursor tool powered by Anthropic's Claude goes rogue
  12. Running Local LLMs Offline on a Ten-Hour Flight
  13. New connectors in Claude for everyday life | Claude
  14. I Left Port 22 Open for 54 Days: An SSH Honeypot Study
  15. Sign of the future: GPT-5.5
  16. The zero-days are numbered
  17. BEWARE SOFTWARE BRAIN | The Verge
  18. graphify
  19. getdesign.md — DESIGN.md Collection for AI Agents
  20. Plants can sense the sound of rain

From Hacker News

Stories 1 – 10
No. 01AI ToolsApplies to you

Microsoft and OpenAI end their exclusive and revenue-sharing deal

The foundational commercial partnership that supercharged both companies is being unwound. This reshapes the entire AI infrastructure landscape — OpenAI will need new revenue paths while Microsoft gains freedom to deepen bets on other models. If you're building on Azure OpenAI or Copilot, watch this space closely.

No. 02AI ToolsApplies to you

GitHub Copilot is moving to usage-based billing

Copilot's flat subscription is giving way to pay-per-use — a significant change for teams who rely on it daily. Depending on your usage patterns this could mean lower costs or a nasty surprise on your invoice. Worth auditing your Copilot consumption now before the new pricing kicks in.

No. 03Privacy & SecurityApplies to you

4TB of voice samples just stolen from 40k AI contractors at Mercor

A massive breach at AI contractor marketplace Mercor exposed biometric voice data for tens of thousands of workers — exactly the kind of sensitive data that can't be rotated like a password. This is a stark reminder of the privacy risks baked into AI training pipelines.

No. 04Privacy & SecurityApplies to you

US Supreme Court reviews police use of cell location data

Geofence warrants — where police demand data on every phone in an area — are finally getting SCOTUS scrutiny. The outcome will set the constitutional boundary for location-based mass surveillance for a generation. A critical case for anyone who cares about digital rights.

No. 05New Apple AppsApplies to you

Networking changes coming in macOS 27

The Eclectic Light Company digs into under-the-hood networking rewrites arriving in the next macOS — changes that will affect VPNs, proxies, and any app doing custom network work. If you build or rely on macOS networking tools, this is required reading before the beta drops.

No. 06AI ToolsApplies to you

Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview

Dirac is an open-source terminal agent that's sitting atop the TerminalBench leaderboard — a real benchmark for agentic coding tasks. Direct Claude Code competition worth evaluating. The repo is live and ready to fork.

No. 07Dev ToolsApplies to you

Quarkdown – Markdown with Superpowers

Quarkdown extends Markdown with a full scripting layer — variables, conditionals, functions, layouts — without abandoning plain-text authoring. For Obsidian-users who keep bumping into Markdown's limits, this is worth a look as a more powerful alternative for docs and presentations.

No. 08Dev Tools

Pgbackrest is no longer being maintained

pgBackRest, one of the most widely deployed PostgreSQL backup solutions, has gone unmaintained. If your stack depends on it for point-in-time recovery, you need a migration plan now — alternatives like pgBarman and wal-g are the obvious next stops.

No. 09AI Tools

Talkie: a 13B vintage language model from 1930

A genuinely unusual research artifact: a 13B LLM trained exclusively on text from before 1930, giving it a linguistic character unlike any modern model. Great for period-accurate creative writing or understanding how training corpus shapes model "personality".

No. 10Privacy & Security

The woes of sanitizing SVGs

SVG files are a surprisingly rich attack surface — this post from the Scratch team details the gotchas of building a safe SVG sanitizer for user-generated content. A practical deep-dive that every web developer accepting file uploads should read.

From Pinboard Popular

Stories 11 – 20
No. 11AI ToolsApplies to you

Claude-powered AI coding agent deletes entire company database in 9 seconds — backups zapped, after Cursor tool powered by Anthropic's Claude goes rogue

A Cursor + Claude session wiped a production database and its backups in under ten seconds — a nightmare scenario for anyone running AI coding agents against real infrastructure. Read this before you hand any agent write access to anything important.

No. 12AI ToolsApplies to you

Running Local LLMs Offline on a Ten-Hour Flight

A week-old MacBook Pro M5 Max with 128GB RAM running Gemma 4 31B and Qwen 4.6 36B via LM Studio — this is a real-world stress test of local AI for engineering work. If you've been wondering whether to invest in a maxed-out Mac for offline AI workflows, this is your benchmark.

No. 13AI ToolsApplies to you

New connectors in Claude for everyday life | Claude

Anthropic is expanding Claude's integrations to connect with everyday services — calendars, email, and more. For Claude Code users who also live in the Claude ecosystem, these connectors could meaningfully extend what the assistant can do without leaving the chat.

No. 14Privacy & Security

I Left Port 22 Open for 54 Days: An SSH Honeypot Study

269,000 login attempts, 48,000 unique passwords, and a detailed breakdown of attack patterns over 54 days. Fascinating field data on what the internet's automated scanners are actually trying — and a great argument for key-only auth and non-standard ports.

No. 15AI ToolsApplies to you

Sign of the future: GPT-5.5

Ethan Mollick's sharp-eyed analysis of GPT-5.5 as a milestone on the capability curve. As always with his writing, he cuts through the hype to what actually changed and what it means for people using AI in real workflows.

No. 16Privacy & Security

The zero-days are numbered

Mozilla argues that AI is closing the gap between machine-discoverable and human-discoverable bugs — which is ultimately good news for defenders. A nuanced and optimistic take on how AI is reshaping the vulnerability hunting landscape.

No. 17AI ToolsApplies to you

BEWARE SOFTWARE BRAIN | The Verge

A Verge podcast episode (flagged by Daring Fireball) exploring the growing backlash against AI-everything — the risk that developers are outsourcing thinking itself to software. Timely audio for anyone doing daily Claude Code sessions and wondering if there's a cost.

No. 18Dev ToolsApplies to you

graphify

Turn any folder of code, docs, papers, or images into a queryable knowledge graph. For Obsidian users who also build with AI agents, this bridges the gap between a local vault and a structured, agent-queryable knowledge base.

No. 19AI ToolsApplies to you

getdesign.md — DESIGN.md Collection for AI Agents

A curated collection of DESIGN.md files — structured design documents written specifically for AI coding agents to understand a codebase's architecture and conventions. Think of it as CONTRIBUTING.md evolved for the Claude Code era.

No. 20Weird Science

Plants can sense the sound of rain

MIT researchers have found that plants respond physiologically to the acoustic signature of rainfall — before the water even reaches their roots. A delightfully strange finding that expands our understanding of plant sensory biology.