Precursor

59 AznHisoka 2026-07-13 14:41:47 UTC blog.cloudflare.com Qwen Share 46

Cloudflare's Precursor enhances bot detection by analyzing session-based behavioral signals, improving accuracy and reducing false positives. It complements Turnstile by evaluating full user journeys, making automation harder and boosting security without disrupting legitimate users.

The art and engineering of Sega CD Silpheed

31 ibobev 2026-07-13 14:54:47 UTC fabiensanglard.net Qwen Share 4

Silpheed's Mega-CD FMV optimized tile reuse, 16-color palettes, and tilemap compression to deliver cinematic video despite 90s hardware limits, with reverse-engineering uncovering 7.5fps compression and ASIC tricks for efficient playback.

A voxel Tokyo in real Japan time – ride the Yamanote line and study Japanese

174 momentmaker 2026-07-13 11:36:47 UTC jivx.com Full Share 17

Ride the Yamanote line through a voxel Tokyo synced to Japan's real clock, weather, and seasons. A lofi bed plays while N5 sentences are read aloud and drift by as subtitles — an ambient Japanese study room you just press play into. 🇺🇸🇨🇦🇬🇧🇩🇪🇫🇷🇳🇱🇨🇭🇪🇸45 countries

Grok uploaded my user directory to xAI's servers

255 tnolet 2026-07-13 14:36:47 UTC twitter.com/a_green_being Full Share 125

@XBToshi Okay, grok has uploaded my entire user directory to xAI's servers. It contains my SSH keys, my password manager database, my documents, photos, videos, everything...

Show HN: DOM-docx – HTML to native, editable Word docs (MIT)

67 fishbone 2026-07-13 12:36:47 UTC github.com/floodtide Qwen Share 22

dom-docx converts semantic HTML to editable Word documents (OOXML) with layout fidelity, using Chromium/Playwright for rendering and LibreOffice for validation. It supports Node.js 20+ and browsers, offering inline or computed style conversion, image rasterization, and customizable document settings like headers, footers, and page layouts.

Grok CLI uploaded the whole home directory to GCS

168 denysvitali 2026-07-13 14:36:47 UTC twitter.com/i Full Share 59

@XBToshi Okay, grok has uploaded my entire user directory to xAI's servers. It contains my SSH keys, my password manager database, my documents, photos, videos, everything...

The 'absolute magic' of Morse code that still connects people globally

50 austinallegro 2026-07-13 10:36:47 UTC bbc.com Qwen Share 15

Amateur radio enthusiasts in Bristol use Morse code to connect globally, fostering a vibrant community through weekly club meetings and long-distance communication. The Shirehampton Amateur Radio Club emphasizes the enduring appeal of Morse code, attracting new members who value its unique blend of technology and human connection.

Backtrack-Free Cursive

184 dmit 2026-07-13 06:36:47 UTC mmapped.blog Qwen Share 80

The author finds English cursive frustrating due to frequent backtracking for letters like "t" and "i," unlike Russian, which minimizes this. They designed a custom cursive script blending SmithHand and Russian elements to reduce backtracking, enabling smoother, more enjoyable writing.

Show HN: Clawk – Give coding agents a disposable Linux VM, not your laptop

76 celrenheit 2026-07-13 14:36:47 UTC github.com/clawkwork Qwen Share 82

clawk runs coding agents in a disposable Linux VM with a restricted network allow-list, isolating tasks from your host system to prevent data leaks or damage. It offers secure, ephemeral environments for code execution, multi-repo workflows, and agent interactions without Docker, using OCI images and automatic state persistence.

The social physics of conversation: Communication patterns matter

121 kiyanwang 2026-07-13 06:36:47 UTC andiroberts.com Qwen Share 23

Alex Pentland's research shows group success hinges on communication patterns—like energy, engagement, and exploration—not just decisions made. Effective idea flow emerges from decentralized, informal interactions and physical setups that foster parallel conversations over centralized, structured ones.

GhostLock, a stack-UAF that has existed in all Linux distributions for 15 years

347 ranger_danger 2026-07-12 21:36:47 UTC nebusec.ai Qwen Share 159

GhostLock (CVE-2026-43499) is a Linux kernel use-after-free vulnerability in rtmutex code, enabling privilege escalation via a dangling pointer from a freed stack frame. Exploited through a race condition and controlled memory overwrite, it allows unprivileged users to execute arbitrary code, fixed in Linux 7.1.

The Graph That Should Be Front-Page News

368 rakel_rakel 2026-07-13 06:36:47 UTC lyrebirddreaming.com Qwen Share 214

Current record-breaking Niño 3.4 sea-surface temperatures, measured directly, show Earth's climate system shifting beyond historical norms due to human-driven warming, amplifying extreme weather and destabilizing ecosystems. This unprecedented shift risks cascading global impacts on food, water, economies, and vulnerable communities, demanding urgent action to prevent irreversible climate ...

Zig Creator Calls Spade a Spade, Anthropic Blows Smoke

1049 crowdhailer 2026-07-13 09:36:47 UTC raymyers.org Qwen Share 525

Anthropic's push to replace software engineering with AI faces scrutiny over Bun's Rust migration, framed as a marketing stunt, while Zig creator Andrew Kelley's candid critique sparks debate on technical and managerial choices in open-source projects.

Interrail: 6,379Km and 13 Countries over 7 weeks

164 coinfused 2026-07-13 08:36:47 UTC shkspr.mobi Qwen Share 107

Last year's 10-country Interrail trip was intense; this year's 15-day package offered flexibility with practical tips like RealTimeTrains and Eurostar vegan meal bookings. Despite delays, crowded trains, and minor mishaps, the couple enjoyed scenic journeys, first-class perks, and found train travel more relaxing than flying, though exhaustion set in after seven weeks.

Cursed circuits #6: reverse avalanche oscillator

18 surprisetalk 2026-07-13 12:36:47 UTC lcamtuf.substack.com Qwen Share 6

A quirky oscillator uses a reversed 2N2222 transistor, exploiting its low-voltage avalanche breakdown to charge/discharge a capacitor via an LED. Its oscillation stems from a unique V-I curve "dip," avoiding stable equilibrium, though it's inefficient and unstable.

Cyberpunk Comics, Manga and Graphic Novels

263 zdw 2026-07-12 23:36:47 UTC shellzine.net Qwen Share 111

A curated list of cyberpunk works (1975–2016) spans Western comics, manga, and graphic novels, featuring *Akira*, *Blade Runner*, and *Ghost in the Shell*, exploring dystopia, tech, and societal critique. Themes include virtual reality, AI, and post-apocalyptic settings, with entries like *The Long Tomorrow* and *Transmetropolitan* highlighting genre evolution and speculative futures.

Tiny Emulators

311 naves 2026-07-12 20:36:47 UTC floooh.github.io Full Share 26

So you want to learn physics (second edition, 2021)

289 azhenley 2026-07-12 21:36:47 UTC susanrigetti.com Qwen Share 56

A self-study physics guide created to help non-traditional learners has aided over 600,000 people, offering a structured curriculum from undergraduate to graduate levels. It emphasizes problem-solving, accessible resources, and addresses gaps in formal education, inspiring self-directed exploration of physics through comprehensive textbooks and practical advice.

Beavis Ultrasound PnP ISA Sound Card Replica

85 mariuz 2026-07-13 05:36:47 UTC github.com/schlae Qwen Share 29

The Beavis Ultrasound PnP is an open-source Gravis Ultrasound PnP clone with full schematics and reverse-engineered GAL code, relying on an AMD InterWave chip for audio. It requires an AM78C201, programmable EEPROM, and optional GAL, allowing op-amp substitutions and untested ferrite bead replacements.

Control the Ideas, Not the Code

146 surprisetalk 2026-07-13 12:36:47 UTC antirez.com Qwen Share 104

Antirez, a respected programmer, argues that AI is reshaping programming by shifting focus from code review to controlling software ideas, emphasizing design over manual code scrutiny to adapt to rapid AI-driven changes and improve efficiency. He advocates leveraging AI for implementation while prioritizing QA, optimization, and high-level design to navigate an evolving, error-prone landscape.

Frieve Vinyl Explained – Microscopic stylus/groove physics simulation

52 XzetaU8 2026-07-13 07:36:47 UTC frieve-a.github.io Qwen Share 8

This app simulates vinyl playback physics (stylus contact, damping, dynamics) to measure frequency response, SNR, and skip rate, using calibrated SI units and realistic noise models. It models groove roughness, dust, and static with physics-based parameters, generating audible effects like treble loss and distortion from geometry, not approximations.

How to read more books

482 silcoon 2026-07-12 16:36:47 UTC scotto.me Qwen Share 248

Replace screen time with reading, use an e-reader, read in daily moments, mix genres, and avoid distractions. Set goals, build a library, track progress, and avoid speed reading/summaries to deepen understanding.

DMS 1.5 "The Wolverine" Released

7 sonixier 2026-07-13 13:36:47 UTC danklinux.com Prefix Share 4

DankMaterialShell (DMS) 1.5 "The Wolverine" is here! This release introduces Frame Mode, a new connected surface that ties the whole shell together, native DankCalendar integration, Hyprland Lua config and enhanced MangoWM support, a reworked Material 3-like shadow system, and hundreds of fixes and improvements across DMS. DMS 1.5 adds the option to draw the shell surfaces as one ...

LAPD lets contract with surveillance giant Flock expire

6 forks 2026-07-13 15:13:47 UTC techcrunch.com Prefix Share 1

A senior LAPD official told news outlets, first reported by ABC7 and the Los Angeles Times, that the police department would allow its three-year contract with Flock to expire when it ends on Saturday. The department cited “serious concerns” around civil liberties and privacy. Flock’s cameras are operated by the Atlanta, Georgia-based company and not the LAPD. “This contract is not being ...

Designing and assembling my first PCB

151 tadasv 2026-07-12 23:36:47 UTC vilkeliskis.com Qwen Share 86

The user designed and assembled a custom BME280 sensor PCB using KiCad, successfully replicating its I2C interface and achieving plug-and-play functionality after soldering. This hands-on experience with PCB design, assembly, and testing boosted their confidence to tackle more complex hardware projects like integrating an ESP32, LCD, and sensors on a single board.

LARP – Revenue infrastructure for serious founders

296 BerislavLopac 2026-07-12 17:36:47 UTC larp.website Qwen Share 71

LARP is a satirical platform mocking legal circular revenue deals where companies mutualize revenue without cash movement, critiquing financial reporting's focus on numbers over real economic value. It highlights how accounting rules allow such practices, blurring lines between legitimate growth and illusion.

Ask HN: What Are You Working On? (July 2026)

193 david927 2026-07-12 21:36:47 UTC news.ycombinator.com Qwen Share 688

Working on iOS app improvements and multiplatform C projects with X11/wasm. LLM coding diminished coding's joy, sparking thoughts of a new hobby.

Sam Neill has died

391 j4mie 2026-07-13 06:36:47 UTC theguardian.com Qwen Share 87

Sam Neill, the acclaimed New Zealand actor known for roles in *The Piano* and *Jurassic Park*, died at 78 after battling cancer, leaving a legacy of versatile performances across film and TV. Survived by four children and six grandchildren, he was celebrated for his contributions to New Zealand's film industry and received a knighthood in 2022.

Vint Cerf, “father of the Internet”, is retiring

346 compiler-guy 2026-07-12 15:36:47 UTC techcrunch.com Qwen Share 189

Vint Cerf, co-creator of TCP/IP and retiring Google VP, emphasized standardized protocols for AI agent interoperability at a conference, while panelists discussed open-source sustainability and challenges in AI centralization. His legacy includes pioneering internet protocols and advocating for structured communication over natural language ambiguity.

Ask HN: Add flag for AI-generated articles

890 levkk 2026-07-13 01:36:47 UTC news.ycombinator.com Qwen Share 385

HN users debate adding an AI-generated article flag to let readers opt-out, alongside a two-axis voting system (good/bad, AI/human), while acknowledging enforcement challenges, YC's AI investments, and stigma risks. Current guidelines ban AI in comments but not submissions, with concerns over moderation, gaming, and community divisiveness.