How fast is a macOS VM, and how small could it be?

https://eclecticlight.co/wp-content/uploads/2015/01/cropped-eclecticlightlogo-e1421784280911.png?w=200
A macOS VM on a Mac mini M4 Pro with macOS 26.4.1 runs at 98% of host speed, with GPU performance at 95%. A MacBook Neo can run a usable macOS VM with 2 virtual cores and 4 GB of memory.

Open Design: Use Your Coding Agent as a Design Engine

https://raw.githubusercontent.com/nexu-io/open-design/main/docs/assets/banner.png
Open Design is an open-source alternative to Claude Design, offering a local-first, web-deployable, and Bring Your Own Key (BYOK) design engine. It uses 31 composable skills and 72 brand-grade design systems.

Why does it take so long to release black fan versions?

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The Century-Long Pause in Fundamental Physics

Physics has been treating quantum mechanics as a mathematical model rather than a physical theory, leading to stagnation in understanding its fundamental nature. Resuming an ontology-first methodology is necessary to make progress in physics, as the current mathematical-model approach has reached its limit.

Why are there both TMP and TEMP environment variables? (2015)

https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/ShowCover.jpg
Two environment variables, TMP and TEMP, specify temporary file locations. Their usage varies by program, with some preferring TMP and others TEMP.

Show HN: DAC – open-source dashboard as code tool for agents and humans

https://raw.githubusercontent.com/bruin-data/dac/main/resources/dac_optimized.gif
DAC is a Dashboard-as-Code tool for defining and serving dashboards from YAML and TSX. It supports major databases and generates SQL via a built-in semantic layer.

Dotcl: Common Lisp Implementation on .NET

https://opengraph.githubassets.com/2cd9878641542edfe78a122650037e287c09c70d584f7d68175a272782f9bfe4/dotcl/dotcl
dotcl is a Common Lisp implementation on .NET that runs on Windows, macOS, and Linux. It embeds Lisp in .NET applications and allows writing .NET code in Lisp.

Show HN: Piruetas – A self-hosted diary app I built for my girlfriend

https://piruet.app/static/img/logo-alpha-square.png
This is a Docker Compose file for a piruetas service, mapping port 8000 and mounting a data volume.

Ti-84 Evo

https://education.ti.com/-/media/ti/education/images/products/product-details/graphing/84-series/84-evo-shared/overview-evo-animated-screen-math-tools-v2.gif?rev=3e5c20f1-f86c-4050-9cb5-9230c63a8684&la=en&h=420&w=480&hash=C7678842D23A4F35210353A5A2B4B4AF
The input is a JSON object containing a list of commands for a text editor. The commands include editing text, formatting options, and inserting links and images.

Show HN: Browser-based light pollution simulator using real photometric data

Interactive light pollution analysis with photometric data Bistro Exterior scene · ~25 MB download · WebGPU recommended (WebGL2 fallback available)

Show HN: Mljar Studio – local AI data analyst that saves analysis as notebooks

https://mljar.com/_next/static/media/ai-lab-home.0d08c1c6.webp
MLJAR Studio is a local AI data analyst and machine learning engineer that runs on your computer, providing private data analysis and insights. It includes an AI assistant that generates Python code, runs experiments, and improves notebooks for reproducible results.

Show HN: Filling PDF forms with AI using client-side tool calling

https://cdn.simplepdf.com/simple-pdf/assets/common/logo-white.png
Public demo. Your chat messages leave your device and are sent to the selected AI provider. Use sample data only. Edit, fill, and understand PDFs by chatting with them.Learn more about SimplePDF Copilot

Artemis II Photo Timeline

https://artemistimeline.com/web/9608627.jpg
An interactive photo timeline of NASA's Artemis II mission — scrub through every crew moment, lunar flyby shot, and audio clip from April 1–10, 2026.

New research suggests people can communicate and practice skills while dreaming

https://media.newyorker.com/photos/69f38c2c92c2d134aec145ec/2:2/w_2560%2Cc_limit/image2%2520(4).jpeg
Scientists have been studying sleep learning, where people learn new information while asleep, and found promising results, but early studies were flawed. Recent research has shown that sleep can influence behavior and learning, with some people able to solve puzzles and remember information after waking.

Bitmap and tilemap generation from a single example

https://raw.githubusercontent.com/mxgmn/WaveFunctionCollapse/master/images/wfc.png
The Wave Function Collapse (WFC) algorithm is a texture synthesis method that generates patterns by iteratively collapsing superpositions of pixels into definite states, ensuring the output contains only patterns present in the input. WFC has been implemented in various programming languages and has been used in game development, level generation, and other applications, with many variations ...

Craig Venter of Human Genome Project Dies at 79

https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20260502_OBP501.jpg
“I seen Francis Crick in a modest mood.” Thus James Watson described his collaborator in the unravelling of ’s structure in the opening words of his book on that quest, “The Double Helix”. Substitute “Craig Venter” into this sentence and you have the measure of a man who, though not Crick’s equal as a scientist was, in his own eyes at least, only a rung or two below him on the ladder of ...

Show HN: Pollen – distributed WASM runtime, no control plane, single binary

https://opengraph.githubassets.com/894c15f04d079458ccc7a8ecb576d5a5715db444ed2ebd3c46fb56108028f9c8/Sambigeara/pollen
Pollen is a self-organizing mesh that turns heterogeneous machines into generic compute. It uses a gossiped CRDT runtime state for workload placement and routing.

Show HN: Large Scale Article Extract of Newspapers 1730s-1960s

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To Restore an Island Paradise, Add Fungi

https://yale-threesixty.transforms.svdcdn.com/production/Palmyra-Atoll_USFWS.jpg?w=400&auto=compress%2Cformat&fit=clip&dm=1777370036&s=bca8540c1ea43d9e372f4baeda9e754e
Conservationists on Palmyra Atoll are working to restore native wildlife by removing invasive palm trees and introducing native fungi. Researchers found rare mycorrhizal fungi that could help supply nutrients to Pisonia trees and boost seedling growth.

Becoming a father shrinks your cerebrum

https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20221001_STP503.jpg
This article is part of our Summer reads series. Visit the full collection for book lists, guest essays and more seasonal distractions. This article appeared in the Science & technology section of the print edition under the headline “Dad brain”

Ask.com has closed

IAC is discontinuing its search business including Ask.com after 25 years. Ask.com officially closed on May 1, 2026, thanking users for their loyalty and trust.

CollectWise (YC F24) Is Hiring

https://bookface-images.s3.us-west-2.amazonaws.com/logos/a5be02a3378f664e1f80f2a84997514d00f9fc1f.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAQC4NIECAKS2NGTZR%2F20260502%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20260502T044705Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEG0aCXVzLXdlc3QtMiJHMEUCIAMI3cfIMsm0%2Fte%2FMckDxTL%2Bofj9hrh2VOPH6TPR8EKbAiEA0I191aErypki%2FKjzEuTYC0XVeCd3sdc%2F%2BqH4o2UquCgq5QMINhAAGgwwMDYyMDE4MTEwNzIiDDI%2B4r1amFYx66m9mSrCA1nFHyQ6wL6hVlcbslYrOcOroUoPPyIjh75cEYKBFbSKiPIla1KxNGU6kjeHX8El0wKgMvDXbPeF8vRIbprYECxP4J7x6Olr78FU9GZ71dtN3jb44gP%2BMYSfaL7oabV3QIiynVNuq0lyDo07IQXq7cyPe7Vmp%2FRCqUdT%2Fab6vfhICBJlDD%2Fy%2FcNXzjC7l%2BjcNhJ%2BJKlkhtuZcLvqSUzajhO3JdOENWURUxfqBmpEcRSzDthMTSrT5ZsFyyLJeRbhiXEHjU3VlhFiq6sXi5WYh635UTSiFwPJQEpGDsfR8rEZ28m3AFvsZiAaR3Ex2mAu8%2FBTfDiPtk8GO9UDoIa7mDmy9vC9a2ZCraRhIG3lXhnedVnp%2BF6EFaSPHc1rKfiI7VXP4GUli8%2FPe5mJoE2qb6iQyJ8B1X6EIlSxynUrxJ5NplnnrhSAB%2B7eBkB3r8DPUAmtCmtphZ%2BxHAVnnQRpiN%2BreQ3RogsTMMaZJck1ygCjksMgu%2B6HaLMqN9FmJu%2BJW14WM03VZBy01m%2Fm3qJbEoROvYApqODKwpmsw7tUA2S6Vrkp819BD3y9XmAXZV1FakQZ6HIInQN%2FefIZzBDCGQP0RjDngNbPBjqlAXjJROpI8o%2FoLTNeo2KLJYFwonv91xUDTXb7enw3UFRUvR%2FvS7pVMlICVBF9V9jvYIx%2BP9LSnh%2FhgKV46oREpk3x4PhPaute7pSucZaSzBIDo0IadkvwAFrbJzO1walYQSm68AUDyIsIs3Fs9qFaJkLOY0%2FoEFtNuNGl8AUNpgSPb9%2FYXKxptIV1nY5qYuYgh%2FoFiONFf6pU5o4X%2BpIvs0u7YM2%2Fyg%3D%3D&X-Amz-SignedHeaders=host&X-Amz-Signature=614ac84d9646667ec99bbede02aa8481d5ab0c8f5dcc690c7042274afdb5a4a9
CollectWise is a Y Combinator-backed startup using AI to automate debt collection. They're hiring a Senior Forward Deployed Engineer to lead client implementations and reach $10 million in revenue within a year.

GameStop Preparing Offer for eBay

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An unknown Sega Saturn project has come to light after 29 years

https://substackcdn.com/image/fetch/$s_!WBNp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcceee168-2926-459f-9c4f-ff399d2ed004_642x627.png
As of early 2026, Sega Retro has more than 300 pages about Unreleased Saturn games. There’s one game that doesn’t have a page, however: Pyramid. What’s Pyramid? That’s what we wondered when we came across this disc: The disc’s owner wasn’t able to provide many details. Our best guess was that it was a version of Pyramid no Nazo: Ankh 2, an unreleased Saturn FMV game. Thankfully, the CD-R ...

DeepSeek V4–almost on the frontier, a fraction of the price

https://static.simonwillison.net/static/2026/deepseek-v4-flash.png
DeepSeek released V4 series models, DeepSeek-V4-Pro and DeepSeek-V4-Flash, with 1 million token context Mixture of Experts. They are priced at $0.14/million tokens input and $0.28/million tokens output for Flash, and $1.74/million input and $3.48/million output for Pro.

I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA

The user discusses various US immigration topics including the new $100k H1B fee, N400 application delays, L1 visa changes, and green card application challenges. They also mention the difficulties of sponsoring H1-B workers for permanent status and the increasing RFE and denial rates for certain green card applications.

LFM2-24B-A2B: Scaling Up the LFM2 Architecture

https://cdn.prod.website-files.com/67cb8aa6e9184b6e44813189/699c94edd6c639c7489d4b4d_MoE%20(1).png
LFM2-24B-A2B is a large language model with 24 billion parameters, released in an early checkpoint, and is deployable across cloud and edge environments. It shows consistent quality gains on standard benchmarks and has favorable throughput scaling, making it suitable for on-device deployment.

SFO Gate Explorer

https://www.flysfo.com/sites/default/files/styles/original_image_webp/public/2026-02/Gate%20explorer%20logo%404x_300px.png.webp?itok=A2xRTlI5
The SFO Gate Explorer is a unique amenity that grants you access to the secure side of the airport. With SFO Gate Explorer, you can bring or meet friends and family at the gate, check out the latest exhibits and art pieces from the award-winning SFO Museum, and take in SFO’s world-class shopping and dining. Step 1: Apply Online You can apply for a SFO Gate Explorer pass up to 30 days in ...

A report on burnout in open source software communities (2025) [pdf]

Open source maintainers face burnout due to lack of payment and unsustainable expectations. This leads to a crisis in the open source community, affecting mental health and self-worth.

Lib0xc: A set of C standard library-adjacent APIs for safer systems programming

https://opengraph.githubassets.com/2c64935df94582561c7e37aaec96ca8dc23a30a38d207948e200f8457546e6a2/microsoft/lib0xc
lib0xc is a C library that aims to make systems programming safer by providing safer APIs and utilities. It uses the C preprocessor to expose its API surface and leans heavily on clang bounds safety extensions.