Free Software Warriors Defy AI Giant Anthropic!

FSF Threatens Anthropic over Infringed Copyright: Share Your LLMs Freel

Key Points

• Court deemed training use fair; downloading legality unresolved before settlement.
• FSF’s GNU FDL-licensed book was in the datasets, allowing use without payment.
• FSF calls on LLM developers to release training data, models, configs, and source code.

Building a Reader for the Smallest Hard Drive

Key Points

• Toshiba’s 0.85-inch MK4001MTD was the world’s smallest HDD and shipped in Nokia’s N91.
• Standard SD/MMC initialization commands failed, showing the drive uses a non-standard interface.
• A custom USB2240-based reader and host-device signal probing were used to capture the drive’s actual protocol.

FSFE supporters affected: Payment provider Nexi cancelled us

Key Points

• Nexi ended FSFE’s payment processing, halting 450+ recurring donations.
• FSFE refused Nexi’s request for supporters’ private data and sought clarification.
• FSFE moved to a new provider; recurring accounts require manual re‑setup by donors.

Drawvg Filter for FFmpeg

Key Points

• drawvg uses VGS scripts and Cairo to render vector graphics directly in FFmpeg.
• VGS integrates FFmpeg expressions for dynamic, metadata- and pixel-aware graphics.
• Examples cover progress indicators, crop visualization, transitions, pixelization, and wave effects via displace.

CAIveat Emptor: What You Tell AI Can and Will Be Used Against You

Key Points

• SDNY ruling: AI queries to consumer platforms are not protected by attorney-client privilege or work product.
• Case background: FBI found a defendant’s Claude prompts used to explore legal strategies without counsel’s involvement.
• Businesses are advised to implement AI acceptable use policies to limit legal and confidentiality risks.

Too Much Color

Key Points

• 3 decimal places for OKLab/OKLCH; 1 for CIE Lab/LCH; 0 for sRGB rgb()/hsl() and degrees.
• Use dE00/dEOk JND thresholds (≈2.0 and 0.02) to judge perceptible differences.
• Minifiers should implement these rounding rules; chaining via color-mix() or relative syntax remains safe.

Essex police pause facial recognition camera use after study finds racial bias

Key Points

• Essex Police paused LFR after a study found demographic differences in correct identification rates.
• ICO urged mitigations as LFR use expands across UK forces; Home Office cites 1,300+ arrests from London deployments.
• Separate studies and a wrongful arrest case highlight ongoing fairness and accuracy concerns in facial recognition.

Flash-KMeans: Fast and Memory-Efficient Exact K-Means

Key Points

• FlashAssign eliminates N×K distance matrix materialization via fused compute + argmin.
• Sort-inverse update replaces atomic scatters with localized segment reductions.
• Up to 17.9× end-to-end speedups on NVIDIA H200, surpassing cuML (~33×) and FAISS (>200×).

The Soul of a Pedicab Driver

Key Points

• Work blends high public enthusiasm with recurring stress and harassment.
• Coping strategies include scheduled breaks and preventive meditation.
• Clear fare minimums are used to manage boundary-testing riders.

AI (2014)

Key Points

• AGI is posited as achievable and potentially transformative.
• Optimism is grounded in the single learning algorithm hypothesis and observed narrow-domain progress.
• Key challenges include emergent complexity and the problem of artificial consciousness/creativity.

Just Put It on a Map

Key Points

• Manhattan’s assessed land value is reported to be >100x the Bronx and greater than the rest of NYC combined.
• CivicMapper received upgrades; PIOAM now includes five free GIS tools for visualization and data handling.
• Similar center-peaked land value gradients appear in New York State, Spokane, and Cincinnati.

3M's PFAS exit killed the supply chain for two-phase immersion cooling in DCs

Key Points

• 3M ended PFAS production by end-2025, removing key immersion-cooling fluids.
• Novec 7100, Novec 649, and Fluorinert FC-72 are discontinued; last Novec orders were due Mar 31, 2025.
• The exit followed thousands of lawsuits and a $12.5B settlement over alleged PFAS contamination.

Entso-E final report on Iberian 2025 blackout

Key Points

• Blackout caused by multiple interacting technical factors leading to cascading disconnections in Spain.
• Recommendations focus on operations, monitoring, coordination/data exchange, and regulatory adaptation.
• Investigation conducted under SO GL and ICS frameworks; final report published 20 March 2026.

Video Encoding and Decoding with Vulkan Compute Shaders in FFmpeg

Key Points

• FFmpeg applies Vulkan Compute to keep encoding/decoding fully on the GPU.
• The approach complements Vulkan Video, covering unsupported formats/workflows.
• Hybrid CPU–GPU offloads typically lose to transfer latency; full GPU residency is advised.

Show HN: Sonar – A tiny CLI to see and kill whatever's running on localhost

Key Points

• Lists and manages localhost services with Docker/Compose context and resource stats
• Offers kill, logs, attach, watch, and graph features, plus health checks and JSON output
• Supports remote scanning via SSH and provides shell completions for Zsh/Bash/Fish

Delphi 13.1 Released, with ARM64 support

Key Points

• Delphi gains a native Windows on Arm (Arm64EC) compiler based on LLVM 20 with LLDB and UCRT.
• Android support updated to API level 36.1 with compliance, tooling, and Jetpack Core upgrades.
• Official iOS 26 support added; IDE and UI modernization and quality improvements continue.

The Reason Windows Hate Is Exploding: It's the End of Personal Computing [video]

Key Points

• Rising Windows criticism is attributed to a fundamental platform shift, not just UI.
• The OS is said to be evolving into a different computing model from the XP era.
• The video frames this as the end of traditional personal computing for Windows.

The 12" chef knife, a humble plea

Key Points

• A 12-inch chef’s knife proved efficient for a wide range of tasks during a week-long trial.
• The featured knife is a vintage-style French carbon steel/POM model still made by K Sabatier in Thiers.
• Professional preferences have shifted from 12- and 10-inch chef’s knives toward shorter blades.

Regex Blaster

Key Points

• Players write regex to eliminate falling strings.
• Orange items are enemies; green items are friendlies to avoid.
• Precision in regex matching is essential to succeed.

Nvidia's Huang pitches AI tokens on top of salary

Key Points

• Nvidia’s Jensen Huang proposes AI token budgets on top of salaries to fund tool and agent usage.
• AI agents are expected to increase demand for software tools and infrastructure.
• Analysts forecast significant U.S. task automation and productivity gains, with some job displacement.

I'm OK being left behind, thanks

Key Points

• Waiting to adopt tech until it’s stable and useful is a valid strategy.
• FOMO-driven pressure, notably in crypto, can lead to premature adoption.
• Personal examples (Git, VR/metaverse) illustrate mixed outcomes of early vs. delayed adoption.

Schizophrenia study finds new biomarker, drug candidate to treat symptoms

Key Points

• New CSF biomarker: circulating Cacna2d1 is reduced in schizophrenia.
• SEAD1 peptide corrected neural and behavioral deficits in a mouse model without observed adverse effects.
• Biomarker-guided patient selection is planned to improve trial success and target cognitive symptoms.

HP realizes that mandatory 15-minute support call wait times isn't good support

Key Points

• HP tested and then removed mandatory 15-minute support call waits in several European countries.
• The measure aimed to shift customers to digital self-service via support.hp.com and a virtual agent.
• HP says it will prioritize timely access to live phone support after feedback.

Chuck Norris Has Died

Key Points

• Family announced Chuck Norris’s death at 86 after hospitalization in Hawaii.
• Norris’s action stardom was underpinned by extensive martial arts credentials and iconic film/TV roles.
• He transitioned from a prolific film career to a long-running TV lead in “Walker, Texas Ranger.”

Java Is Fast. Your Code Might Not Be

Key Points

• Significant performance gains achieved by removing eight common Java anti-patterns.
• String concatenation in loops is O(n²); fix with a single StringBuilder outside the loop.
• Virtual thread pinning in JDK 21–23 can occur with synchronized code plus blocking I/O.

The Los Angeles Aqueduct Is Wild

Key Points

• A 300-mile, gravity-fed aqueduct delivers Eastern Sierra water to Los Angeles.
• The system relies on careful grading and a 2,500-foot elevation drop to avoid pumps.
• Controversial land and water rights acquisitions in Owens Valley underpin the project’s history.

The Social Smolnet

Key Points

• Offpunk 3.0 adds Share and Reply to enable email-based sharing and feedback from within the client.
• Reply can auto-discover and save contact emails (enhanced in Offpunk 3.1) for page or site reuse.
• The author used these features to contact ~40 sites and supports a terminal-only workflow with neomutt and neovim.

Exploring 8 Shaft Weaving

Key Points

• Acquisition and setup of a second‑hand 8‑shaft table loom with expert guidance.
• Explanation of table vs floor loom mechanics (treddles and tie‑ups) and their impact on patterning.
• Shift from direct warping to point threading to alter repeat length and introduce symmetry.

Germany Mandates ODF for Public Administration

Key Points

• ODF and PDF/UA are mandated for public sector documents under the Deutschland-Stack.
• The framework prioritizes open standards, open interfaces, local data storage, and open source to curb vendor lock-in.
• The policy aligns with EU-level interoperability and resilience initiatives and guides development through 2028.

Having Kids (2019)

Key Points

• Initial fears about parenthood were shaped by selection bias and limited exposure.
• The birth of a first child triggered an immediate, broad protective instinct.
• Parenting includes frequent, quiet moments of peace and fulfillment often overlooked by non-parents.

VisiCalc Reconstructed

Key Points

• VisiCalc’s 1979 origins and Apple II impact are recapped with technical context.
• A minimal spreadsheet clone in C is built with simple cell and grid structs.
• Formulas are parsed and evaluated via a recursive descent parser supporting references and basic functions.

Oregon School Cell Phone Ban: 'Engaged Students, Joyful Teachers'

Key Points

• Statewide classroom cell phone ban shows positive results at Estacada High School.
• All Oregon public school districts are reported compliant with the policy.
• Implementation issues (filters, resource access, scheduling) are being addressed with flexible guidance.

90% of crypto's Illinois primary spending failed to achieve its objective

Key Points

• $14.2M spent; about 90% ineffective in changing outcomes.
• Opposition to Stratton (Senate) and Ford (H-07) failed; both won.
• ‘Wins’ were in already-likely races: Peters (H-02), Bean (H-08), Budzinski (H-13).

Chuck Norris dies at age 86

Key Points

• Family announces Chuck Norris died at 86, peacefully surrounded by relatives.
• Career spanned martial arts, film, and TV, notably Walker, Texas Ranger and Way of the Dragon.
• Tributes from family and public figures, including the George and Barbara Bush Foundation and Dolph Lundgren.

Delve – Fake Compliance as a Service

Key Points

• Leak of a public spreadsheet allegedly exposed Delve client audit reports and initiated the probe.
• Article claims fabricated evidence, non-independent auditors, and near-identical audit reports across clients.
• Delve reportedly denied the allegations; backups and leaked documents are linked for review.

MacBook M5 Pro and Qwen3.5 = Local AI Security System

Key Points

• Qwen3.5-9B scores 93.8% locally on MacBook Pro M5 with 25 tok/s and 765 ms TTFT.
• Qwen3.5-35B-MoE achieves 435 ms TTFT, faster than GPT-5.4-nano’s 508 ms.
• HomeSec-Bench targets real security workflows: 96 LLM + 35 VLM tests across 16 suites; all images are synthetic.

Launch HN: Sitefire (YC W26) – Automating actions to improve AI visibility

Key Points

• Submits synthetic prompts to major AI systems to monitor citations and mentions.
• Automates content updates to improve likelihood of being sourced and cited by AI search.
• Tracks impact via analytics, reporting a rapid increase in AI bot requests for a client.

Randomization in Controlled Experiments

Key Points

• Random assignment is essential to both reduce bias and validate significance tests.
• Controlled comparisons (treatment vs. control) are necessary to isolate causal effects.
• RCTs are the gold standard for causal claims, with strict documentation expected by leading journals.

BYD's bet on EVs is paying off as drivers ditch gas amid rising oil prices

Key Points

• BYD’s EV demand is rising as oil prices surge, with strong dealership activity in Asia.
• EV adoption reduced global oil demand by 1.7 million bpd in 2025, per Ember.
• Policy shifts and sustained high oil prices could further accelerate EV uptake in key markets.

Attention Residuals

Key Points

• AttnRes replaces uniform residuals with attention over previous layers for selective aggregation.
• Block AttnRes reduces memory to O(Nd) while preserving most gains, enabling practical deployment.
• Benchmarks and scaling laws show consistent performance improvements over baselines.

Our Commitment to Windows Quality

Key Points

• Taskbar can be repositioned to top or sides; Copilot entry points are reduced in several apps.
• Windows Updates become less disruptive with more control over timing and installation.
• Feedback Hub update and a simplified Windows Insider Program aim to improve transparency and participation.

Time to Dump Windows?

Key Points

• Linux offers better support for the author’s CUDA tooling (FlashAttention, Triton) than Windows.
• Windows is largely used as a host for WSL2, prompting consideration of a native Linux switch.
• The author avoids Azure, favoring OCI, GCE, and AWS, and views GitHub as replaceable.

The worst volume control UI in the world

Key Points

• Reddit hosts a growing thread of intentionally bad volume control UI designs.
• The exercise is framed as fun yet useful for creative thinking.
• The article argues that redesigning volume controls isn’t needed despite accessible tools.

Show HN: I made an email app inspired by Arc browser

Key Points

• Access to the email app isn’t open yet, but a 3D digital card preview is available at define.app.
• Direct feedback is encouraged by replying to the email; updates are posted at x.com/define_app.
• All demo emails are simulated; only the current email is real.

The bespoke software revolution? I'm not buying it

Key Points

• The article disputes a broad AI-driven bespoke software surge and says custom software already exists and often disappoints.
• It argues most users seek outcomes, not the responsibility of building and maintaining systems.
• AI adoption is expected to be widespread for tasks, but deep custom system-building will remain limited to outliers.

NumKong: 2'000 Mixed Precision Kernels for All

Key Points

• 2,000+ mixed-precision SIMD kernels across 7 languages and multiple CPU/ISA backends in ≤5 MB binaries.
• Benchmarked vs NumPy+OpenBLAS and PyTorch+MKL on Intel Xeon4, with detailed speed/error metrics.
• Built to accelerate and stay compatible with Unum’s USearch; wide downstream ecosystem mentioned.

A Japanese Glossary of Chopsticks Faux Pas

Key Points

• Two serious taboos: passing food between chopsticks and standing chopsticks in rice.
• Numerous minor etiquette breaches include washing, licking, biting, pointing, stabbing, and tapping with chopsticks.
• Follow proper sequence (alternate with rice) and use serving chopsticks for communal dishes.

OpenCode – The open source AI coding agent

Key Points

• Open source AI coding agent for terminal, IDEs, and desktop.
• Supports 75+ LLM providers via Models.dev and is LSP enabled.
• Integrates with GitHub Copilot and OpenAI (ChatGPT Plus/Pro); emphasizes privacy and offers curated models via Zen.

Meme Buildings

Key Points

• Defines “meme buildings” as publicly recognized beyond architectural circles, distinct from iconic or must-see works.
• Highlights Face House (1974) as a case: still occupied, not redeveloped, and publicly recognizable via anthropomorphic facade.
• Notes Japan’s architectural media ecosystem, including Japan Architect’s 23,500+ project online archive and its low-cost student access.

Work_mem: It's a Trap

Key Points

• pg_log_backend_memory_contexts exposed large allocations in ExecutorState and HashTableContext.
• work_mem limits per-operation memory, not total backend memory.
• PostgreSQL memory contexts free allocations at query end, enabling accumulation.

Show HN: We built a terminal-only Bluesky / AT Proto client written in Fortran

Key Points

• Fortransky is a Fortran-based TUI client for Bluesky/AT Protocol with Rust-powered relay-raw decoding.
• Supports Jetstream (JSON) and relay-raw (CBOR) stream modes with a native decoder preferred over Python.
• Build requires gfortran, CMake, libcurl, and rustc ≥ 1.70; Python deps needed for relay-raw path.

Show HN: Baltic shadow fleet tracker – live AIS, cable proximity alerts

Key Points

• Local, open-source Baltic Sea AIS tracker focused on 1,200+ watchlisted vessels
• Detects cable proximity, loitering, and Russia↔West transshipment patterns
• FastAPI dashboard with SQLite logging enables analysis, GPX export, and warm restarts

We rewrote our Rust WASM Parser in TypeScript – and it got 3x Faster

Key Points

• WASM boundary overhead, not Rust speed, dominated latency.
• serde-wasm-bindgen direct JsValue was 9–29% slower than JSON.
• Porting to TypeScript removed the boundary and delivered a 3× speedup.

Heart Attack and Stroke Risk Jumps When People Stop Taking GLP-1s

Key Points

• Stopping GLP-1s increased heart attack and stroke risk versus continued use, with risk rising over longer gaps.
• Continuous GLP-1 therapy cut cardiovascular events by 18%; restarting after a break cut them by 12%.
• Researchers urge prioritizing adherence and long-term support for GLP-1 treatment.

I love my dumb watches

Key Points

• Frequent charging limited the usefulness of Apple Watch Series 7, especially for sleep tracking.
• Smartwatch use increased screen time via apps and notifications.
• The author adopted a Vostok Komandirskie automatic watch and customized it with a new bezel.

Ghostling

Key Points

• Ghostling demonstrates libghostty via a single-file C terminal using Raylib for 2D rendering.
• It inherits accurate, optimized terminal emulation from Ghostty through libghostty-vt.
• Planned additions include Kitty Graphics and OSC clipboard/title, while GUI features remain out of scope.

Show HN: Red Grid Link – peer-to-peer team tracking over Bluetooth, no servers

Key Points

• Peer-to-peer team tracking over BLE and device-to-device Wi‑Fi without servers or cell service
• MGRS-native navigation with offline USGS/OpenTopoMap packs cached as MBTiles
• Encrypted sessions (AES‑256‑GCM, ECDH P‑256) with 2–8 device support and low-power expedition modes

An FAQ on Reinforcement Learning Environments

Key Points

• Enterprise workflows are a fast-growing category of RL tasks.
• Reward hacking resistance is a central design and quality challenge.
• Environments often ship in Docker; tasks combine prompts with verifiable graders.

Monkey C – Small familiar language for apps on Garmin watches

Key Points

• Monkey C apps import Toybox modules and extend App.AppBase with lifecycle methods.
• Toybox.System offers debugging, timing, stats, and app termination utilities.
• Monkey C is duck-typed, bytecode-interpreted, and uses reference counting with no primitive types.

Why I'm Not Worried About Running Out of Work in the Age of AI

Key Points

• Comparative advantage is used to explain industry offshoring and labor shifts.
• Non-economic caveats to comparative advantage are noted (security, resilience, fledgling industries, externalities).
• Historical automation examples illustrate that societies often adapt despite painful transitions.

Linux Applications Programming by Example: The Fundamental APIs (2nd Edition)

Key Points

• Official code examples for a Linux API book by Arnold Robbins
• Documents directory includes license; errata tracked at Documents/errata.txt
• Issues can be reported via the repository; last updated Oct 10, 2025 (IDT)

Lent and Lisp

Key Points

• Common Lisp code from Calendrical Calculations failed to load in SBCL/CLISP until package/export lines were removed.
• The author chose Common Lisp over Emacs Lisp to access broader astronomical calendrical functions.
• A new script was started to find Ramadan 1/Ash Wednesday overlaps across 500 years using the repaired library.

Woman in Labor at Florida Hospital Brought in Zoom Court for Refusing C-Section

Key Points

• Laboring patient faced a Zoom court hearing after refusing a C-section at UF Health Jacksonville.
• Florida does not require appointed counsel for pregnant patients in such medical decision hearings.
• Experts warn forced treatment could increase in states with fetal personhood policies like Florida.

Heisuke Hironaka Has Died

Key Points

• Heisuke Hironaka died at 94; renowned for the 1970 Fields Medal in algebraic geometry.
• Served at Columbia, Harvard, and led Kyoto University’s RIMS; president of Yamaguchi University (1996–2002).
• Advanced math education, including the Sansu Olympics; received Japan’s Order of Culture in 1975.

The Ugliest Airplane: An Appreciation

Key Points

• Pellarini’s PL-7 adopted a steel-tank core with twin-boom tails for rapid loading and operational efficiency.
• Surplus Armstrong Siddeley Cheetah engines from Avro Ansons made the PL-7 economical to power.
• After the PL-7’s prototype was lost in 1958, a new design effort in New Zealand reused Harvard trainer parts.

Molly Guard

Key Points

• Defines molly guards and cites their anecdotal origin in computing culture.
• Shows examples across hardware (military and consumer) and software (dialogs, key combos).
• Introduces “reverse molly guards,” where actions auto-trigger after inactivity.

Traces of Evil

Key Points

• Two-decade archive pairing archival and current imagery of Nazi-era sites, supported by primary sources.
• Educator-led project with accredited access and curriculum-aligned teaching resources.
• Case study on Hitler’s bunker and Reich Chancellery highlights forensic details and commemoration debates.

Turing Award Honors Bennett and Brassard for Quantum Information Science

Key Points

• Bennett and Brassard win the 2025 ACM A.M. Turing Award for founding contributions to quantum information science.
• BB84 introduced practical quantum cryptography with information-theoretic security and is deployed via fiber and satellites.
• Quantum teleportation and entanglement distillation underpin efforts toward quantum networks and a quantum internet.

FFmpeg 101 (2024)

Key Points

• FFmpeg tools and libraries are outlined with distinct roles for conversion, playback, analysis, and processing.
• Sample code demonstrates opening media, analyzing streams, and listing key stream properties.
• Decoders are selected via avcodec_find_decoder; libavcodec provides static codecs and supports custom codec registration.

A look at content scrambling in DVDs

Key Points

• CSS encrypts DVD data so only authorized players can decrypt during playback.
• DVD CCA licenses and distributes decryption keys to manufacturers.
• CSS’s reliance on secrecy and a small key set presents significant weaknesses.

Mamba-3

Key Points

• Inference-first SSM with expressive recurrence, complex-valued states, and MIMO variant
• Mamba-3 SISO beats Mamba-2, Gated DeltaNet, and Llama-3.2-1B on prefill+decode latency at 1.5B
• Open-sourced high-performance kernels built with Triton, TileLang, and CuTe DSL