AI Summarized Hacker News

Front-page articles summarized hourly.

Sigmund Freud's Begonia

Emma Freud uncovers a single begonia cutting, traced through a long line of gifts from Sigmund Freud to Kirsten Flagstad in the 1930s, who passed it to Sally Miles, then to Corinne Rodriguez, to Barry Walsh, to Tom Basden, who gave it to Emma. The plant becomes a living link to Freud’s exile to London in 1938, his Berlin roots, and his son Ernst Freud, architect of the first Mermaid Theatre. Emma visits the Freud Museum and her late father, aligning estranged family ties and turning the cutting into a symbolic heirloom she plans to pass on.

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Ragdoll Mayhem Maker – a physics-based level editor for my indie game

Ragdoll Mayhem Maker is a physics sandbox where you design levels and unleash chaos. Build with objects like spinning saws, bombs, pinball flippers, and gravity-reversing pads, then launch a ragdoll to trigger unique, humorous chain reactions. Join thousands of community-created levels, rate top creations, and share yours. Wishlist on Steam.

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AI solves Erdos problem #728 (Terence Tao mathstodon post)

Terence Tao notes the recent use of AI tools on Erdős problems, as discussed on Mathstodon.

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Flock Hardcoded the Password for America's Surveillance Infrastructure 53 Times

Security researcher disclosed that Flock Safety hardcoded an organization-wide ArcGIS API key across 53 public front-end bundles, granting access to the ArcGIS mapping environment and 50 private layers. The single credential, unauthenticated and not restricted by referrers or IPs, could be used across 53 endpoints to view data from about 12,000 deployments, including ~5,000 police departments, ~6,000 community deployments, and ~1,000 private businesses. The key enabled access to cameras, patrols, drone telemetry, 911 data, hotlists, CAD, and PII via FlockOS’s unified map. A separate unauthenticated token minting vulnerability remained unpatched for 55+ days. API rotated; risk remains.

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Show HN: Repogen – a static site generator for package repositories

Repogen is an alpha CLI tool that generates static repository structures for multiple package managers. It scans directories for packages, auto-detects package types, generates required metadata, and signs repositories with GPG/RSA keys. It can produce unsigned repos, perform incremental updates, and output static file structures served by web servers. Supports Debian/APT, RPM/Yum, Alpine, Arch Pacman, and Homebrew, with repository formats such as InRelease, repodata, APKINDEX, and more. Written in Go; includes Docker-based tests and GitHub Actions workflows.

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Show HN: A website that auctions itself daily

An "The Daily Auction" page warns the site is untrusted and to verify outbound links, shows placeholders for today’s winner, end time, and price, and invites participation, with links to GitHub Terms and posting to X.

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Show HN : A game to document my electronics learning journey.

An apple falls, illustrating gravity.

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Turn a single image into a navigable 3D Gaussian Splat with depth

Revelium Studio's ML-Sharp demo lets users upload JPG/PNG/HEIC images to test Apple's SHARP machine-learning model (apple/ml-sharp) under Apple's research/open-source licenses. It is for non-commercial research and demonstration purposes; outputs are experimental and provided "as is." Users must ensure they have rights to uploaded content and comply with laws and third-party rights. Mentions of "Apple" and "SHARP" are trademarks to identify compatible tech and do not imply affiliation or endorsement.

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RTX 5090 and Raspberry Pi: Can It Game?

An RTX 5090 can be used with a Raspberry Pi 5 via an OCuLink eGPU dock, but gaming is largely impractical. The Pi 5 is pitted against Beelink MINI-S13 (Intel) and Radxa ROCK 5B (ARM). Key limits are low PCIe bandwidth (Gen2 x1 on Pi) and CPU emulation (FEX) that hampers modern games. Results: Cyberpunk 2077 barely playable on Pi; ROCK 5B better; Portal 2 runs at 4K >60 FPS on Pi Linux; Beelink dominates. Power draw: Pi ~9W, Beelink ~30W. Verdict: not worth the RTX 5090 on a cheap SBC; future ARM gaming may improve.

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QtNat – Open you port with Qt UPnP

QtNat is a lightweight C++ library built with Qt 6 that automates NAT port mapping via UPnP. It discovers UPnP routers, reads the device/service description, finds the WANIPConnection/WANPPPConnection service, and issues a SOAP AddPortMapping request to map a local port to an external port. It provides a simple API: discovery, get description, add port mapping, with status updates (NAT_IDLE through NAT_ERROR) and automatic error handling. The article includes a usage example mapping port 6664 and notes contribution on GitHub.

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JavaScript Demos in 140 Characters

Dwitter is a platform for 140-character JavaScript demos, with the site requiring JavaScript to run.

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Amiga Pointer Archive

Amiga Pointer Archive is a web tool to browse, customize, and export Amiga pointers. It offers categories of pointers, options to hide system pointers, color thumbnails, and local edits with a browsable history saved in the browser. Users can doodle, set hotspot, undo/redo, set names, and export pointers. Pointers can be shared via a link, copied to clipboard. There's an Amiga preferences file to place in the devs folder for use on real or emulated Amigas, and options to download or create a bootable Amiga disk image with the pointer.

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SendGrid isn’t emailing about ICE or BLM – it’s a phishing attack

Phishception: A phishing campaign uses compromised SendGrid customer accounts to send emails through SendGrid’s infrastructure, bypassing SPF/DKIM and appearing legitimate. Attackers target SendGrid users with politically charged bait (BLM, LGBTQ rights, ICE) and emotional triggers (opt-out buttons, language switches). The sender domains aren’t sendgrid.com but legitimate businesses with compromised accounts. This is a long-running, potentially state-influenced operation. Defenses: enable 2FA, use unique passwords, audit API keys/sender identities, and avoid clicking; Gmail filters can auto-delete impersonation messages.

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Exercise can be nearly as effective as therapy for depression

Regular physical activity may ease depression about as effectively as psychological therapy, and similarly to antidepressants, according to a Cochrane review of 73 randomized trials (nearly 5,000 adults). Light-to-moderate exercise over multiple sessions showed the strongest benefits; no single form clearly outperformed others, though programs combining activities and resistance training may beat aerobic exercise alone. Compared with no treatment, exercise produced moderate symptom reductions; compared with therapy, similar improvements (moderate certainty); compared with antidepressants, similar effects (low certainty). Benefits after treatment are uncertain; safety is generally good but injuries can occur. Exercise is a low-cost, accessible option.

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The (likely?) cheapest home-made Michelson interferometer

The author describes building a very cheap Michelson interferometer using 3D printing and off-the-shelf parts to make home photonics affordable. Key ideas: use 3D-printed components, especially adjustable kinematic mirror mounts with springs and screws; aim for a BOM under about $3 (beam splitter optional or replaceable with a microscope slide). CAD work via build123d with GitHub/CAD files available. The post explains the interferometer concept and provides build photos, highlighting accessibility and hands-on learning for DIY optics.

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Show HN: Rocket Launch and Orbit Simulator

An orbital rocket simulation UI showing telemetry and mission data with manual and guided launch options. It lets users set a target altitude, control pitch manually or via guidance, and spawn into orbit at 200–800 km. It includes orbital burn modes (prograde, retrograde, normal, anti-normal, radial, anti-radial), a refuel option (5000 kg), and navigation controls like zoom, follow rocket, and mission selector (no mission selected).

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AI Zealotry

Matthew Rocklin argues that AI can make experienced developers faster and more creative, but requires careful practices to avoid junk output and dehumanizing workflows. He proposes a framework: minimize interruptions and climb the abstraction ladder; use structured hooks, permissions handling, and sound notifications to keep control. Emphasizes self-review, automated testing, and rigorous feedback to build confidence in AI-generated code. Advocates dropping Python for Rust/TypeScript where appropriate, using Rust for compute and TS for frontend, while retaining Python for ecosystem. Stresses planning/docs, and thinking deeply—AI as a compiler-era amplifier.

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Show HN: EuConform – Offline-first EU AI Act compliance tool (open source)

EuConform is an open-source EU AI Act compliance tool that classifies risk and tests bias in AI systems. It uses CrowS-Pairs for bias detection, can generate Annex IV-compliant reports, and runs fully client-side (offline) in the browser, with optional local Ollama model support. It emphasizes privacy (no data leaves the device), accessibility (WCAG 2.2 AA), and GDPR-by-design, with multilingual UI (English/German). The project is a Turborepo/Next.js 16 TypeScript stack. High-risk obligations start in 2027. Licensing: MIT and EUPL. Quick-start: clone, install (pnpm), and run pnpm dev; deploy via Vercel.

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73% People Detained by ICE Have No Convictions

Could not summarize article.

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CI-Hush

ci-hush is a GitLab project by J.J. Green offering tiny scripts to quiet GitLab CI, with 8 commits, 1 branch, 0 tags, a README, MIT license, created April 8, 2025.

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