ArXiv Declares Independence from Cornell

Google details new 24-hour process to sideload unverified Android apps

https://cdn.arstechnica.net/wp-content/uploads/2026/03/developer-identity-hero-640x360.jpg
Google is introducing a developer verification program to combat malware on Android devices, requiring verified developers to provide identification and pay a $25 fee. Power users can bypass this verification through an advanced flow in developer settings, but it's not immediately accessible and has a 24-hour countdown.

Drawvg Filter for FFmpeg

drawvg is a FFmpeg filter that renders vector graphics on top of video frames using the Cairo library and VGS scripting language. It can be used to create custom transitions, animations, and effects by executing scripts that describe 2D graphics.

Push events into a running session with channels

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Claude channels are research preview features requiring Claude Code v2.1.80 or later and claude.ai login. They allow two-way communication between Claude and external platforms like Telegram and Discord.

Full Disclosure: A Third (and Fourth) Azure Sign-In Log Bypass Found

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Nyxgeek discovered four Azure Entra ID sign-in log bypasses in the last three years, including GraphNinja, GraphGhost, GraphGoblin, and a fourth bypass involving a long user-agent string. These bypasses allowed attackers to validate passwords without generating log entries, and Microsoft fixed them in record time, but initially downplayed the severity of the issues.

Cursor Composer 2 is just Kimi K2.5 with RL

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Drugwars for the TI-82/83/83 Calculators (2011)

Building a Reader for the Smallest Hard Drive

https://www.willwhang.dev/assets/images/MK4001MTD_reader/IBM_slide.jpg
A user reverse-engineered a 0.85-inch Toshiba hard disk drive, the MK4001MTD, to read its data using an 8-bit SD/MMC interface and OpenClaw, a reasoning-focused LLM. The user successfully created a USB bridge to expose the drive as USB mass storage, achieving a functional proof of concept and making the drive's data accessible.

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

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
$k$-means has historically been positioned primarily as an offline processing primitive, typically used for dataset organization or embedding preprocessing rather than as a first-class component in online systems. In this work, we revisit this classical algorithm under the lens of modern AI system design and enable $k$-means as an online primitive. We point out that existing GPU ...
https://static.fsf.org/nosvn/fsf40/meetups/toronto_1.png
The FSF received a notice about a settlement in the Bartz v. Anthropic lawsuit over copyright infringement of works used to train LLMs. The FSF urges Anthropic to provide LLMs to users in freedom, including complete training inputs and source code.

Return of the Obra Dinn: spherical mapped dithering for a 1bpp first-person game

How the Turner twins are mythbusting modern technical apparel

https://www.carryology.com/wp-content/uploads/2026/03/Mallory-Project_FULL-RES_2025-00938.jpg-resized.jpg
The Turner Twins, Ross and Hugo, conduct A/B tests on modern and 100-year-old gear on expeditions to see how far textile innovation has taken us. Their data suggests that modern gear offers only a narrow safety margin over historic gear, which requires skill to operate.

Cockpit is a web-based graphical interface for servers

https://opengraph.githubassets.com/db6887d8db62e8df823a2c6e603b50ec91c39a161168e05c7495ce31a764114f/cockpit-project/cockpit
Cockpit is a web-based graphical interface for servers. - cockpit-project/cockpit

Show HN: Three new Kitten TTS models – smallest less than 25MB

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Kitten TTS v0.8 is out with 15M, 40M, and 80M parameter models for high-quality voice synthesis on CPU. It supports various voices and offers commercial support for teams integrating it into their products.

4Chan mocks £520k fine for UK online safety breaches

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Ofcom fined 4Chan £520,000 for failing to comply with UK's Online Safety Act. 4Chan's lawyer responded with an AI-generated image, claiming the platform breaks no law in the US.

Astral to Join OpenAI

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Astral's tools will join OpenAI's Codex team to push AI and software development forward. The goal remains to make programming more productive with tools that feel fast, robust, and integrated.

Noq: n0's new QUIC implementation in Rust

https://www.iroh.computer/api/og?title=Blog&subtitle=noq,%20noq,%20who%27s%20there?
The noq team has created a general-purpose QUIC implementation with multipath and NAT traversal support, which is a separate codebase from Quinn but aims for collaboration. noq's headline feature is a full implementation of the QUIC Multipath spec, enabling latency improvements and supporting various network conditions.

Too Much Color

https://www.keithcirkel.co.uk/images/preview/too-much-color.png
The author of csskit developed a minifier test suite and discovered that precise enough is almost never more than 3 decimal places for colours like oklch and oklab, and even less for lab and lch. The author found that 3dp is enough for most colour operations, with 1dp sufficient for lab/lch and 0dp for sRGB, and that this rule holds uniformly across different colour spaces and operations.

A Journey Through Infertility

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The writer expresses gratitude to her village, family, medical staff, and friends for their support during her fertility journey. She thanks them for helping her stay positive and believe in her future as a mother.

Be intentional about how AI changes your codebase

To maintain a well-structured codebase, use semantic functions as building blocks that are minimal, self-describing, and unit-testable, and pragmatic functions as wrappers around complex logic. Effective data modeling involves enforcing correctness, using precise names, and avoiding loose typing to prevent bugs and make code easier to understand and maintain.

How many branches can your CPU predict?

https://lemire.me/blog/wp-content/uploads/2026/03/Capture-decran-le-2026-03-18-a-17.52.22-825x510.png
Processors can learn to predict branches over time, especially with repeated use of the same random values. AMD processors performed well in this benchmark, while Intel processors showed disappointing results.

Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster

https://blog.skypilot.co/scaling-autoresearch/assets/banner.png
We used Claude Code to automate neural network training with 16 GPUs on a Kubernetes cluster, achieving a 2.87% improvement in val_bpb and discovering a strategy to exploit performance differences between H100 and H200 GPUs. The agent ran for 8 hours, submitting ~910 experiments and finding that scaling model width mattered more than any single hyperparameter, with a total cost of under $300.

Clockwise acquired by Salesforce

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Clockwise will remove Smart Hold events and Flexible Meetings, then delete user data on March 27, 2026. Users will get a prorated refund for prepaid subscriptions and can transition to Reclaim for AI-powered scheduling.

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

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Essex police paused live facial recognition technology due to potential accuracy and bias risks. A study found the system was more likely to correctly identify black participants than others, raising fairness concerns.

Launch HN: Voltair (YC W26) – Drone and charging network for power utilities

Voltair Labs is developing weatherized, hybrid-fixed drones for power utility inspections, aiming to replace foot patrols and helicopters with a cost-effective solution. The company's first product is a long-range, fixed-wing drone that recharges inductively on stripped-down charging pads, enabling inspections of entire transmission line corridors with reduced costs and increased efficiency.

NanoGPT Slowrun: 10x Data Efficiency with Infinite Compute

Researchers achieved 10x data efficiency with NanoGPT Slowrun by ensembling 1.8B parameter models and applying architectural tweaks. This allows scaling with compute rather than data, potentially leading to significant model performance improvements.

OpenBSD: PF queues break the 4 Gbps barrier

OpenBSD's PF packet filter now supports 64-bit bandwidth values, removing a 4.29 Gbps limit. This change allows correct configuration for high-speed interfaces up to 999G.

FSFE supporters affected: Payment provider Nexi cancelled us

https://pics.fsfe.org/uploads/medium/6a/a3/e54d386708f90b88f8773e514dd3.png
Nexi terminated our contract without notice, halting over 450 supporters' recurring donations. We appreciate your continued support for software freedom through our new payment provider.

Linux Page Faults, MMAP, and userfaultfd for faster VM boots

https://www.shayon.dev/page-fault.jpg
Linux handles page faults through demand paging, where physical allocation is deferred until the page is actually touched, and userfaultfd lets userspace take over fault handling by intercepting and resolving page faults. Userfaultfd preserves the mapping identity, allowing KVM memory slots, VFIO DMA, and vhost-user shared memory to continue working as if the pages had always been present, ...

Waymo Safety Impact

https://lh3.googleusercontent.com/0yeCFokqBBAtQfNQvgqVm0B4liRib7h3TUY3a0RwudEipb8_ciEXApiif7b4fA18tiqXut8v-19FRq0Lppfrt2x4d2vSE4Fv9w=e365-s420
Waymo's safety impact research uses best practices to align ADS and human crash data, comparing Waymo's crash performance to the current human driving fleet from the areas where Waymo operates. The results show that Waymo has 70-90% fewer crashes than the benchmark, with statistical significance achieved due to the large number of miles driven by Waymo.