DeepSeek open-sources inference optimizations with 60–85% faster generation [pdf]

https://opengraph.githubassets.com/601aadeacea68fa320d2b01c2813f8ab2f130b25f6a8f24cbe5bd3a0b9abb5d4/deepseek-ai/DeepSpec
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Fintech Engineering Handbook

Fintech systems require careful handling of money to prevent errors and ensure trust. Key patterns include idempotency, deduplication, reconciliation, and event sourcing to maintain accurate and reliable financial records.

OpenRA

https://www.openra.net/images/news/20260222-generators.gif
OpenRA playtest features new random map generators for Red Alert, Tiberian Dawn, and Dune 2000. The update includes balance overhauls, difficulty adjustments, and UI improvements for map-making.

Beer CSS – Build material design in record time

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The text is a dummy sample of the printing industry, used since the 1500s. It has remained unchanged despite the transition to electronic typesetting.

Previewing GPT‑5.6 Sol: a next-generation model

https://images.ctfassets.net/kftzwdyauwt9/3RkIKhLVsVWcJQ3czkTNMH/c63f9c43efd82ddf863f87d44edca201/Spend_Controls_Artcard.png?w=3840&q=90&fm=webp
A limited preview of the new gpt5.6 is available to u.s. government partners. the preview is designed to test the effectiveness of safeguards against misuse based on real-world scenarios - and to help users prepare for attacks if they encounter them en route to the tool sandboxed in their home pcs or home labs, for example, he says – and how they might be used...

Long Wave radio era set to end with switch-off

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A Midlands town stood out on British wireless sets in the 1930s due to a powerful radio transmitter near Droitwich. The transmitter's masts still send broadcasts across Britain and Europe, including coded messages during WWII and cricket commentary.

Nox Metals (YC S25) Is Hiring SWE

NOX METALS is a supply chain company using software and automation to deliver metal to American factories quickly. They are hiring software engineers in Detroit to build an intelligent platform that manages orders, inventory, and industrial equipment.

Linux on Older Hardware: The Complete Revival Guide

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Liam's guide helps revive old hardware with Linux by selecting the right distro, optimizing RAM, and upgrading to an SSD, reducing electronic waste and extending the machine's life by 2-3 years. The guide provides a tier system for distro selection based on RAM, CPU architecture, and storage, and offers techniques for browser optimization, zram compression, and service trimming to squeeze ...

WordStar: A Writer's Word Processor (1996)

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Robert J. Sawyer, a science fiction author, uses WordStar for writing due to its intuitive interface and long-hand-page metaphor, which allows for easy editing and navigation. WordStar's unique control-key commands and customizable options make it a more productive tool for writers.

If You Can't Hold It, You Don't Own It

drmWhen you click "buy" on a movie, game, or book digitally, you are almost always purchasing a revocable license, not the actual file. The store retains full control. [1] drmA Blu-ray disc, game cartridge, or printed book cannot be remotely erased, edited, or deactivated. It is a physical object you can own, resell, lend, archive, or play offline indefinitely. removalIf a digital ...

Why does kinetic energy increase quadratically, not linearly, with speed? (2011)

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The kinetic energy of an object is proportional to the square of its velocity because it is a consequence of Newton's second law and the definition of work. The quadratic dependence of kinetic energy on velocity is a result of the symmetry properties of space and time, specifically the homogeneity and isotropy of space and the homogeneity of time.

The US Army Issued Ocarinas to Soldiers in World War II

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During World War II, the US government shipped thousands of flutes to soldiers, including ocarinas, which were chosen for their simplicity and durability. The ocarinas were made from plastic molds and had a simple fingering system, making them easy to play and learn.

Faster KNN search in Manticore: 2-pass HNSW, batched distances, and AVX-512

https://miro.medium.com/v2/resize:fit:700/1*2IcQ1F_alFncLEQftzEPWA.jpeg
Manticore's KNN search engine improved by up to 29% at high k with no API changes or index rebuild. Optimizations target distance computation and memory access patterns.

Cultures of Making and Relating

Cultures of Programming - The Development of Programming Concepts and Methodologies is a recent book by Tomáš Petříček that analyses the history of programming from the perspective of five interwoven cultures. It contains a lot of interesting insight, so I encourage you to read it. At the very least, read the first chapter. In this post, I try to relate these five cultures to the wider world ...

U.S. allows Anthropic to release Mythos AI to ‘trusted’ US organizations

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The US government lifted its block on Anthropic's Claude Mythos 5 AI model, allowing release to over 100 US institutions. The decision follows intense talks between the government and Anthropic, which committed to working on protocols and standards for its models.

Jest/Vitest interactive course (runs in the browser)

This course covers Jest and Vitest fundamentals for testing frontend applications, including assertions, mocks, and async testing. It's free and compatible with both Jest and Vitest, preparing you for React frontend testing.

MicroVMs: Run isolated sandboxes with full lifecycle control

https://d2908q01vomqb2.cloudfront.net/da4b9237bacccdf19c0760cab7aec4a8359010b0/2026/06/22/Screenshot-2026-06-22-at-10.49.45%E2%80%AFAM-1024x577.png
AWS Lambda MicroVMs provides isolated, stateful execution environments for user or AI-generated code, offering virtual machine level isolation, rapid launch and resume, and stateful execution. It's available in multiple regions, with up to 16 vCPUs, 32 GB of memory, and 32 GB of disk per MicroVM.

OpenTTD 16.0-Beta1

OpenTTD 16 beta is available with improved map generation and new features like custom control of land height and aging rate of cargo payments. The OpenTTD 16 Title Game Competition has been launched on TT-Forums for community members to design and vote on the new title game.

AI in mathematics is forcing big questions

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Mathematicians are concerned that AI may replace human mathematicians, but some see it as a tool to aid in problem-solving and collaboration.

Fusion Programming Language

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Fork me on GitHub Fusion is a language for creating reusable components across multiple languages. It produces lightweight, human-readable code that fits each target language.

Hellishly Slow Level 13 Deflate Compression

Libdeflate level 13 is a slow but effective DEFLATE compression level that saves 0.134% on Silesia corpus. It runs 56.4x slower than level 12 but is suitable for data compressed once and distributed many times.

Anatomy of a Failed (Nation-State?) Attack

https://grack.com/_thumbs/bdd1d20a96688a5dfc4ee0f14eed1d0a-600-600
The author was targeted by a fake-interview scam using a RAT called PinpinRAT, which was embedded in a TypeScript repository. The scam was sophisticated and used multiple fake websites, stolen history, and a patient timeline to avoid detection.

U.S. government will decide who gets to use GPT-5.6

IBM MCGA Gate Array Reverse Engineering

https://opengraph.githubassets.com/8cb7ca151dec67b220c6ad4f2b0df9782dcc568265cc14fa075ac944e014100b/schlae/IBM_MCGA
IBM's MCGA is a low-cost video chipset used in PS/2 models 25 and 30, consisting of memory and video formatter gate arrays. The formatter gate array decodes ISA addresses, manages RAMDAC, and generates pixel data in graphics and text modes.

The gap between open weights LLMs and closed source LLMs

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The gap between open weights LLMs and closed source LLMs is shrinking, with some benchmarks showing a near catch-up by December 2026. However, a broader analysis of 18 benchmarks shows a more moderate and consistent gap of around 5 months.

Foreign funds help make housing unaffordable: research

https://news.mccombs.utexas.edu/wp-content/uploads/2026/06/iStock-1495524595-1200x800.jpg?v=1782388015
US housing prices rose 60% from 2019 to 2025 due to foreign investment and low supply elasticity. Cities can control supply sensitivity through zoning and permitting, promoting affordable housing.

Ultrasound imaging of the brain

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Researchers have developed a new type of hardware using ultrasound to record brain activity without drilling into the skull. This technology captures detailed images of the brain's vascular system, potentially leading to breakthroughs in understanding and treating neurological conditions.

Show HN: Hacker News on a train station-style flip board

A Hacker News departures board displays top 20 stories with rank, score, and title on a split-flap display. It fetches the front page on a schedule and allows users to pin their own text and toggle flap clicks.

Om

https://daringfireball.net/misc/2026/06/om-john-2025-06-09.jpeg
The author and Om Malik were close friends for 20 years, often attending Apple keynotes together, and Om's presence improved any room with his kind words and humor. He transformed from a quick-trigger blogger to a thoughtful essayist after a heart attack in 2008, and his writing continued to earn respect until his passing.

We can still stop California's 3D printer surveillance scheme

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California State Assembly passed legislation mandating 3D print surveillance software despite EFF's warnings about privacy risks. The bill now heads to the state senate, where it needs to be stopped to protect creators' tools and users' rights.