AI Bubble Bursts As Rules Tighten!

The Browser Is the Sandbox

Key Points

• Browser technologies can fulfill sandbox needs for agents: filesystem, network, and execution.
• Co-do demo shows in-browser agent workflows with folder access and LLM integration.
• A double-iframe technique refines network rule enforcement within the sandbox.

Show HN: A desktop app that blocks work when you bite your nails

Key Points

• On-device MediaPipe detection triggers a warning when fingers near the mouth are observed.
• Supports macOS, Windows, and Linux with release builds and source compilation instructions.
• Privacy-first design: all camera processing remains local; no data is transmitted.

You can just port things to Cloudflare Workers

Key Points

• Datasette was reimplemented as datasette-ts for Cloudflare Workers with a scoped feature set.
• SESnoop ports a Rails app to a Workers API plus a React SPA, integrating SES/SNS with D1.
• Live demo and GitHub source are available; npm-based local execution is supported.

A static site generator written in POSIX shell

Key Points

• POSIX shell script (gen.sh) replaces a prior JavaScript SPA for site generation.
• One-pass build produces pages, tag/draft pages, RSS/Atom/JSON feeds, and a sitemap.
• Metadata is parsed from fixed line numbers in a strict front matter, rendered via comrak.

Compiling models to megakernels

Key Points

• Three bottlenecks: launch overhead, wave quantization, and initial weight-loading stalls.
• CUDA Graphs and programmatic launch techniques help but leave gaps.
• Fusing a forward pass into a single megakernel can significantly improve utilization.

Show HN: NukeCast – If it happened today, where would the fallout go

Key Points

• Uses current weather forecasts to simulate fallout dispersion and settlement
• Provides documentation on model assumptions and limitations via a wiki
• Offers a Premium tier, citing Amazon compute costs

Tell HN: I cut Claude API costs from $70/month to pennies

Key Points

• Switched from Claude Sonnet to Claude Haiku for better cost-performance.
• Implemented batching, input filtering, shorter outputs, and code stripping to reduce tokens.
• Reduced costs from ~$70/month to pennies per day while maintaining quality.

Show HN: SF Microclimates

Key Points

• Free, no‑key API aggregates 150+ PurpleAir sensors to provide neighborhood-level weather for San Francisco.
• Simple endpoints with example JSON; caching (1h TTL) and rate limiting implemented on Cloudflare KV/Wrangler.
• Open repository enables self-hosting and easy adaptation for other cities with GPS bounding boxes.

Ask HN: DDD was a great debugger – what would a modern equivalent look like?

Key Points

• DDD offered strong visibility into program state but was built for synchronous, single-process contexts.
• Modern software requires debugging support for concurrency, async runtimes, and distributed services.
• The post questions whether GDB-style interactive stepping remains the right abstraction for today’s systems.

Things I've learned in my 10 years as an engineering manager

Key Points

• EM responsibilities are fluid and defined by team needs across Product, Process, People, and Programming.
• Caring about user value is a whole-team responsibility; code matters only if it benefits end users.
• Processes have trade-offs and can bloat; reassess regularly to maintain effectiveness.

The Post Correspondence Programming Language: Domino-oriented Programming (2015)

Key Points

• PCPL uses PCP dominos to encode computations, including numeric functions like LCM.
• Cited proof establishes PCPL’s Turing-completeness via compilation from Turing machines.
• A unary addition example shows an accepting computation history produced by a PCPL match.

The Holy Grail of Linux Binary Compatibility: Musl and Dlopen

Key Points

• Introduces GOOS=musl and patches Go runtime to enable musl builds for graphics.gd.
• Switches to linking Go with Godot’s c-archive on musl due to lack of official Godot musl builds.
• Plans a custom dlopen to enable a single static binary that can load graphics backends at runtime.

Running the Stupid Cricut Software on Linux

Key Points

• Use WINE (fresh build from WineHQ) and winecfg to prepare Linux for Cricut Design Space.
• Change browser user agent to Windows 10 to download the Windows installer due to site OS detection.
• Complete login by passing the code from the browser redirect to the WINE app via cricut://?code=…

Emissary, a fast open-source Java messaging library

Key Points

• Uses LambdaMetafactory to avoid reflection and improve handler invocation performance.
• Renamed from Deezpatch; core artifact is emissary-core from v2.0.0 with updated JPMS module name.
• Provides annotation-based request/event handling, DI integration, and Gradle/Maven coordinates.

Apple, What Have You Done?

Key Points

• Post-update issues reported after iOS/iPadOS 26 and macOS Tahoe across iPhone, iPad, and Mac
• iPhone 14 Pro storage bloat in ‘System Data,’ widget UI change, and random restarts
• Mac app launcher removal and hardware problems with an iPad Magic Keyboard and iMac screen flicker

UK House of Lords Votes to Extend Age Verification to VPNs

Key Points

• House of Lords advanced amendments extending age assurance to VPNs and most user-to-user services.
• Amendments 92 (VPN age assurance) and 94a (under-16 user ban via age assurance) passed with clear majorities.
• More intrusive device-level CSAM prevention and platform-specific age thresholds proposals were rejected.

Text Is King

Key Points

• 2025 U.S. book sales exceeded 2019 and trailed pandemic highs only slightly.
• 422 independent bookstores opened in the latest year cited; Barnes & Noble is resurgent.
• Gallup, NEA, and ATUS show modest declines or stability, not a collapse, in reading.

Filming ICE is legal but exposes you to digital tracking

Key Points

• Legal right to record police exists in many U.S. jurisdictions but varies and is limited by practical restrictions.
• Bystander and journalist safety risks are documented around ICE protests and enforcement.
• Smartphone recordings create identification and location-tracking exposure, intensified by facial recognition tools.

San Francisco Graffiti

Key Points

• Photos come from San Francisco city inspectors documenting graffiti violations.
• Images were scraped from the city’s website to create the collection.
• The project frames street art from an official legal perspective.

MapLibre Tile: a modern and efficient vector tile format

Key Points

• MLT offers up to 6x compression and faster decoding versus MVT, improving performance and costs.
• Available now in MapLibre GL JS/Native via 'encoding: mlt'; dev conversion and Planetiler generation supported.
• Roadmap includes 3D/elevation, GPU-optimized formats, and richer data types.

Show HN: Posts p/month more than doubled in the last year

Key Points

• Show HN posts in January 2026 (through day 26) are up 125% vs. January 2025.
• Show HN’s share of total submissions rose to roughly 15% in January YoY.
• Charts corroborate both absolute and relative increases in Show HN activity.

The New Dark Ages

Key Points

• Modern overreliance on LLMs could erode research habits and access to original sources.
• Economic fragility and political incentives are cited as weakening societal stability.
• The author recommends owning physical knowledge resources to ensure access.

Wind Chime Length Calculator

Key Points

• Calculates tube lengths and suspension drill points from material and diameter inputs.
• Provides equal-tempered and Solfeggio frequency-based length tables.
• Offers templates and fields for material estimates, costs, and A4 pitch selection (432–446 Hz).

EU investigates Elon Musk's X over Grok AI sexual deepfakes

Key Points

• EU opens DSA investigation into X over Grok’s sexualised image generation and exposure in the EU.
• X faces potential fines up to 6% of global turnover; interim measures are possible.
• EU extends probe into X’s recommender systems; related investigations and bans span multiple countries.

Vibe Coding Kills Open Source

Key Points

• Vibe coding raises productivity by lowering reuse costs but reduces direct user engagement with OSS.
• Model shows that when OSS returns depend on engagement, vibe coding lowers entry, sharing, and project quality.
• Maintaining OSS at scale will require new maintainer compensation approaches under widespread vibe coding.

Transfering Files with gRPC

Key Points

• REST/HTTP streams files easily and can use the Range header for resumable downloads.
• Avoid JSON Base64 for file content due to overhead and memory buffering.
• gRPC requires server-streamed, chunked protobuf messages for large file transfers.

Clinic-in-the-Loop

Key Points

• Clinical trials should be engines of discovery, not just validation steps.
• The Clinical Trial Abundance Project targets more, faster, and more informative trials.
• Failures in trials provide data that improve models and inform better drugs.

Water 'Bankruptcy' Era Has Begun for Billions, Scientists Say

Key Points

• UNU-INWEH labels the situation as “global water bankruptcy,” indicating irreversible freshwater depletion.
• About 6.1 billion people live in countries with insecure or critically insecure freshwater supplies.
• Four billion people face severe water scarcity for at least one month annually.

After two years of vibecoding, I'm back to writing by hand

Key Points

• Spec-driven prompts did not fix agents’ inability to evolve designs over time.
• Agent outputs looked good in isolation but failed holistically across the codebase.
• The author reverted to hand-coding, citing better end-to-end outcomes.

Show HN: Only 1 LLM can fly a drone

Key Points

• Only Gemini 3 Flash completed the drone task under equal conditions.
• Altitude control was decisive for successful identification.
• Architecture: Zig/raylib simulation, Rust controller, VLM via OpenRouter.

Porting 100k lines from TypeScript to Rust using Claude Code in a month

Key Points

• Bypassed sandbox SSH limits using a local Node.js HTTP server to handle git pushes to GitHub.
• Used Docker to compile and run Rust code, avoiding antivirus prompts from new binaries.
• Automated approvals and task queuing via AppleScript and maintained terminal focus with an auto-clicker.

TSMC Risk

Key Points

• The article advocates allowing Nvidia chip sales to China while restricting semiconductor equipment sales to Chinese fabs.
• It underscores ongoing AI supply-chain dependence on Taiwan, including packaging/testing for some U.S.-fabricated chips.
• It introduces a “TSMC Brake,” asserting current AI demand exceeds foundry supply, as reflected in Big Tech earnings commentary.

Apple introduces new AirTag with longer range and improved findability

Key Points

• More powerful Precision Finding, longer Bluetooth range, and a louder speaker
• Find My integration with sharing features for item locations
• Security notifications to detect nearby unknown AirTags

Being a Canadian in America (Eric Migicovsky)

Key Points

• Author balances family/community ties in California with concerns about U.S. politics.
• Limited civic tools as a non-citizen lead him to consider relocation and financial choices as levers.
• He supports trans people and immigrants and credits U.S. immigration pathways and YC for enabling Pebble and Beeper.

Blade Runner Costume Design (2020)

Key Points

• Design credit goes to Charles Knode and Michael Kaplan, with Knode’s sketches guiding principal costumes.
• The film blends 1930s–1940s noir fashion with futuristic styling across characters.
• Construction details include Deckard’s blazer built at Ital Costume, as evidenced by an auction listing.

Google AI Overviews cite YouTube more than any medical site for health queries

Key Points

• YouTube was the single most cited domain in AI Overviews for health queries (4.43%).
• Study scope: 50,807 queries from Berlin; AI Overviews appeared in 82%+ of searches.
• Google cautions against extrapolating findings beyond Germany and format.

Exactitude in Science – Borges (1946) [pdf]

Key Points

• The empire’s cartography escalates to a 1:1 map matching the territory.
• Later generations deem the vast map useless and let it decay.
• A mock 1658 citation frames the text with pseudo-scholarly authority.

Cop-assisted extortion of DWI arrestees in New Mexico include getting them drunk

Key Points

• APD Lt. Justin Hunt pleaded guilty to extortion tied to DWI case-fixing.
• Scheme included orchestrating arrests by getting targets intoxicated.
• About two dozen individuals implicated; roughly half have pleaded guilty.

Windows 11's Patch Tuesday nightmare gets worse

Key Points

• Microsoft confirms Windows 11 boot failures after the Jan. 13, 2026 security update, mainly on 24H2/25H2.
• Workaround: use Windows Recovery Environment to remove the January 2026 patch.
• Two OOB fixes addressed earlier app/service issues; no OOB fix yet for the boot failure.

AI will not replace software engineers (hopefully)

Key Points

• The author envisions AI capable of one-shot app generation and questions its impact on software companies.
• They highlight varied public discourse: fear of replacement, AI-only app “successes,” and skepticism about AI’s capabilities.
• They conclude human innovation and unpredictability will remain a core competitive advantage despite AI’s coding ability.

QMD - Quick Markdown Search

Key Points

• Local hybrid search (BM25 + vector + LLM reranking) for markdown, transcripts, and docs
• Agent-ready outputs and MCP server integration with Claude Desktop/Code examples
• Pipeline features query expansion (Qwen3-0.6B), RRF fusion, and local LLM reranking

Qwen3-Max-Thinking

Key Points

• Qwen3-Max-Thinking adds adaptive tool-use and test-time scaling to enhance reasoning.
• Reported competitive results on 19 benchmarks with claims of surpassing Gemini 3 Pro on key reasoning tests.
• Available now via Qwen Chat and Alibaba Cloud API.

What "The Best" Looks Like

Key Points

• Real-world constraints complicate the directive to hire only the best.
• A 2012 hiring case at Freckle illustrates learning through practice.
• A non-traditional candidate excelled via a rigorous take-home ops project.

France Aiming to Replace Zoom, Google Meet, Microsoft Teams, etc.

Key Points

• Bercy aims to replace Zoom, Google Meet, and Microsoft Teams with a sovereign solution by 2027.
• The software reportedly exists but is not widely accessible.
• The article questions feasibility due to entrenched user habits.

Is It Time for a Nordic Nuke?

Key Points

• Nordic states are urged to consider a NATO‑integrated cooperative nuclear hedge.
• Uncertainties in nuclear‑use impacts influence deterrence and risk‑taking.
• U.S. strategic shifts imply Europe must assume greater defense responsibility.

Television is 100 years old today

Key Points

• Baird’s decisive demonstration occurred at 22 Frith Street, Soho, on 26 January 1926.
• Early experiments in Hastings used improvised materials and produced the first transmitted image.
• Selfridges hosted public demos of the electro-mechanical Televisor, aiding funding and visibility.

The mountain that weighed the Earth

Key Points

• 1774 Schiehallion experiment measured plumb-line deflection to infer Earth’s density.
• Residual deflection of 0.0032° was attributed to the mountain’s gravity after correcting for curvature.
• Result: Earth’s density ~4.5 t/m³; mass ~4.87×10^21 t, later refined by Cavendish’s torsion pendulum work.

DHS keeps trying and failing to unmask anonymous ICE critics online

Key Points

• DHS withdrew Meta summonses seeking to identify ICE-watch accounts in Pennsylvania.
• Prior similar requests targeting LA watch groups were also withdrawn after legal challenges.
• Court filings reveal DHS initially sought broad subscriber metadata from Meta.

Find 'Abbey Road when type 'Beatles abbey rd': Fuzzy/Semantic search in Postgres

Key Points

• pg_trgm handles fuzzy text matching; pgvector enables semantic similarity via embeddings.
• A CC0 Spotify dataset from Hugging Face is used to test and demonstrate the methods.
• GIN and IVFFlat indexes are essential for performance in fuzzy and vector searches.

The Adolescence of Technology

Key Points

• AI is framed as a turbulent “technological adolescence” requiring mature, sober stewardship.
• The essay rejects doomerism and highlights a policy shift from risk-centric (2023–2024) to opportunity-centric (2025–2026) approaches.
• It calls for acknowledging uncertainty and implementing targeted, minimally disruptive interventions.

Fedora Asahi Remix is now working on Apple M3

Key Points

• Fedora Asahi Remix runs KDE Plasma on Apple M3 hardware.
• The post credits “noopwafel” and “Shiz” for contributions.
• The update invites community questions, signaling continued development.

House of Lords Votes to Ban UK Children from Using Internet VPNs

Key Points

• Lords back amendment to ban VPN provision to UK minors to support OSA age checks.
• Vote passed 207–159; Conservatives largely in favour, Labour largely against.
• Government opposition suggests a tough path in the House of Commons.

JuiceSSH – Give me my pro features back

Key Points

• Reports claim JuiceSSH stopped honoring past Pro purchases and raised its price by $20.
• The article describes a reverse-engineering approach using JADX, ApkTool, and jarsigner to restore functionality.
• It recommends sourcing the APK from APKPure or via adb and verifying its SHA-256 hash before changes.

There is an AI code review bubble

Key Points

• Greptile outlines three pillars for AI code review: independence, autonomy, feedback loops.
• Review and generation agents should be separate; Greptile does not ship code-generation features.
• Greptile targets background automation and has released a Claude Code plugin.

Show HN: Postgres and ClickHouse as a unified data stack

Key Points

• NVMe-backed Postgres improves OLTP performance, potentially up to 10x.
• Native CDC to ClickHouse with plans for sub-second replication and enhanced logical decoding.
• pg_clickhouse enables unified queries and analytics pushdown from Postgres.

Not all Chess960 positions are equally complex

Key Points

• White’s average first-move advantage is +0.30 ± 0.14 pawns across Chess960.
• New metrics quantify total opening complexity and decision asymmetry for each side.
• Standard chess shows high asymmetry; #226 is most complex, #198 most balanced.

Notice of Collective Action Lawsuit Against Workday, INC

Key Points

• Court-authorized notice for Mobley v. Workday, Inc.; no position on merits.
• Provisional ADEA collective: 40+ applicants since Sept 24, 2020 denied employment recommendations.
• Opt-in required by March 7, 2026 via electronic consent form.

When AI 'builds a browser,' check the repo before believing the hype

Key Points

• Claimed AI-built browser largely failed to compile and pass CI.
• Project performance was poor and relied on Servo and QuickJS.
• Cost estimates suggest massive token usage and multi-million-dollar expense.

Show HN: TetrisBench – Gemini Flash reaches 66% win rate on Tetris against Opus

Key Points

• Six AI models compared across 449 Tetris games with detailed W–L–D records.
• Gemini 3 Flash leads with a 66% overall win rate (99-48-2).
• Interface includes a leaderboard and AI vs AI Tetris battle mode.

OpenFlexure Microscope

Key Points

• 3D-printed flexure stage delivers sub-100 nm steps and multi-day micron-level stability.
• Low-cost build centered on Raspberry Pi and camera; minimal assembly with single-piece printed parts.
• Modular optics support RMS objectives and printed filter cubes for advanced imaging modes.

Dithering – Part 2: The Ordered Dithering

Key Points

• Ordered dithering relies on threshold maps to convert grayscale to black-and-white patterns.
• The Bayer matrix (2x2) reduces artifacts by dispersing pixels in a cross-hatch pattern.
• A 4x4 Bayer matrix offers 16 thresholds, improving gradient smoothness over the 2x2 version.

AI Lazyslop and Personal Responsibility

Key Points

• Defines “AI Lazyslop” and outlines an anti-lazyslop manifesto for responsible AI-assisted coding.
• Calls for disclosure of AI use, sharing prompts/process, and thorough testing and review of AI-generated code.
• Cites industry examples (Ghostty disclosure policy, Linus Torvalds’ AI experimentation) and uses Claude for editing.

The Hidden Engineering of Runways

Key Points

• Runway-end crushable surfaces stopped three September 2025 U.S. overruns without fatalities.
• Runway design balances extreme aircraft loads with safety, cost, and FAA guidance on length.
• Temperature, elevation, and slope significantly impact takeoff and landing distances.

ChatGPT Containers can now run bash, pip/npm install packages and download files

Key Points

• Containers now run Bash and many languages beyond Python, including JavaScript via Node.js.
• pip and npm installs work via a proxy, and a new container.download tool fetches files by URL.
• Features are available in free ChatGPT accounts; downloads appear to be proxied via Azure.

RIP Low-Code 2014-2025

Key Points

• AI reduces the cost and time to ship code, challenging low-code ROI.
• Low-code requires ongoing developer work for enablement and maintenance.
• Cloud Capital shifted from Retool to AI-assisted in-house tools for better outcomes.

Show HN: Ourguide – OS wide task guidance system that shows you where to click

Key Points

• On-screen guidance shows where to click and provides step-by-step instructions.
• “Ask Mode” offers on-demand screen access without screenshots or copy-paste.
• A macOS download is available; broader desktop guidance is noted as coming soon.

State of the Windows: What is going on with Windows 11?

Key Points

• KB5073455 triggered shutdown/reboot issues; KB5077797 provides a fix.
• KB5074109 caused PST/Outlook hangs with cloud storage; KB5078132 fixes it.
• Additional post-update app failures include Notepad crashes with error 0x803f8001.

Refusing to Use Twitter

Key Points

• The author has ceased all engagement with Twitter/X and will not open shared links.
• He argues viewing content legitimizes the platform, even without direct posting.
• He cites reported January 2025 incidents involving Elon Musk’s posts about UK politics to illustrate concerns.

AI code and software craft

Key Points

• Metric-centric production erodes craft, per Ellul’s “technique” framework.
• Bandcamp emphasizes music-first values and bans AI; Spotify optimizes via playlists and algorithms.
• AI thrives in optimization environments and may displace rote engineering work.

Ask HN: Who do you follow via RSS feed?

Key Points

• Uses Inoreader for low-frequency RSS feeds; prefers direct site visits for high-frequency sources like Hacker News.
• Follows Arnold Kling and Noah Smith for economic analysis.
• Includes Roger Pielke Jr. and Andrew Sullivan for climate/energy and cultural/political commentary.

Show HN: I made AI earphones remember everything (auto-sync to Obsidian)

Key Points

• Monitors Doubao’s web interface to auto-sync voice notes into Obsidian in real time.
• Recognizes 30+ speech variations and uses SQLite for smart deduplication.
• Built with Python, Playwright, and async I/O; cross-platform and MIT licensed.

I let ChatGPT analyze a decade of my Apple Watch data. Then I called my doctor

Key Points

• ChatGPT Health issued alarming cardiac grades that conflicted with medical evaluation.
• Anthropic’s Claude provided similar analyses and a different grade (C).
• OpenAI cites privacy safeguards, but ChatGPT is not covered by HIPAA, and Apple did not collaborate on these tools.

Y Combinator website no longer lists Canada as a country it invests in

Key Points

• YC now only invests in U.S., Cayman Islands, or Singapore corporations.
• Startups outside these jurisdictions must flip their parent company to one of them.
• Canada was removed from the list in November 2025, per archived pages.

Pharos: The Lighthouse at Alexandria

Key Points

• Pharos was regarded as the only safe harbor along a hazardous stretch of Egypt’s Mediterranean coast.
• Classical texts tie Pharos to Greek myth and seafaring, including Homer’s Odyssey and alternative Helen narratives.
• Alexander founded Alexandria at Rhacotis near Pharos in 331 BC, with Dinocrates executing a gridded urban plan.

You have to know how tech companies work

Key Points

• Advancement depends on shipping successful projects and communicating outcomes, not just closing tickets.
• Track organizational priorities to focus effort on visible, reputation-enhancing work.
• Build credibility to pursue user-centric initiatives like accessibility when formal support is limited.

iPhone 5s Gets New Software Update 13 Years After Launch

Key Points

• iOS 12.5.8 extends certificates so iMessage, FaceTime, and activation work past January 2027 on iPhone 5s/6.
• iPhone 6s receives iOS 15.8.6 with the same certificate extension; prior iOS 15.8.5 arrived in September 2025.
• Apple also issued new versions of iOS 18 and iOS 16, reflecting parallel support for current releases.

Any application that can be written in a system language, eventually will be

Key Points

• Economic pressures in serverless computing favor efficient system languages.
• Research cited suggests large energy efficiency gaps between Python and Rust.
• LLMs and strict compilers reduce barriers and errors in systems programming.

Heathrow Drops the Liquids Rule

Key Points

• Heathrow ends carry-on liquids limits and electronics removal across all terminals.
• CT scanners with 3D imaging enable the new screening process and boost throughput.
• U.S. TSA’s 3-1-1 remains; nationwide change would need broad CT deployment and standardization.

Visualizing the Collatz Conjecture as a Phase Transition

Key Points

• Collatz is modeled as a dynamical system with competing linear and nonlinear forces.
• Base-1 represents integers as unary strings and defines entropy as log of string length.
• A Python “Comparator” visualizes side-by-side universes, including standard Collatz.

Heathrow scraps liquid container limit

Key Points

• Heathrow now allows liquids up to two litres and laptops to remain in bags due to full CT scanner rollout.
• Other UK airports’ rules vary; many still require 100ml limits pending DfT approval.
• Policy changes and delays have created inconsistent rules, with recent reversions to 100ml at some airports.