Show HN: I built a tiny LLM to demystify how language models work

https://raw.githubusercontent.com/arman-bd/guppylm/main/assets/guppy.png
This project trains a tiny language model named GuppyLM from scratch in 5 minutes using a Colab notebook, showing how every piece works. GuppyLM is a simple vanilla transformer model trained on 60K synthetic conversations about a fish's life.

Show HN: YouTube search barely works, I made a search form with advanced filters

Advanced search for YouTube videos with filters for duration, date, title, and more. Find exactly what you're looking for on YouTube.

Gemma 4 on iPhone

https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a7/c4/20/a7c42022-eedc-887c-36c4-86270e1dcb93/Placeholder.mill/1200x630wa.jpg
AI Edge Gallery is an open-source app for running powerful LLMs on mobile devices offline. It features high-performance Generative AI, Agent Skills, and Thinking Mode for advanced reasoning and creative capabilities.

Copilot is 'for entertainment purposes only', per Microsoft's terms of use

https://techcrunch.com/wp-content/uploads/2024/04/GettyImages-2041281128-e1712563728365.jpg?w=1024
Microsoft is updating Copilot's terms of use after being criticized on social media, describing it as "for entertainment purposes only." The company will alter the language to reflect how Copilot is used today.

The 1987 game "The Last Ninja" was 40 kilobytes

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Microsoft hasn't had a coherent GUI strategy since Petzold

https://www.jsnover.com/blog/wp-content/uploads/2026/03/image-3-1024x572.png
Microsoft's GUI ecosystem has failed developers due to internal politics, premature platform bets, and business strategy pivots. This has led to a confusing landscape with multiple frameworks and technologies.

An open-source 240-antenna array to bounce signals off the Moon

https://moonrf.com/moon_array.png
The device is a high-aperture array for EME experiments and radio astronomy, requiring a 12 V DC power supply and an amateur radio license. It's intended for moon-bounce and one unit per person is allowed, with country restrictions applying.

LÖVE: 2D Game Framework for Lua

https://opengraph.githubassets.com/38cd54fb3be10f1a2078ac410ea9aeb181aa6a11fc58123a487ae59c6bccda4c/love2d/love
LÖVE is a free, open-source 2D game framework for Windows, macOS, Linux, Android, and iOS using Lua. It has documentation on its wiki and community support on forums, Discord, and Reddit.

Eight years of wanting, three months of building with AI

The user built a high-quality set of devtools for SQLite called syntaqlite with the help of AI coding agents, which proved to be an incredible force multiplier for implementation but a dangerous substitute for design. The user learned that AI excels at giving the right answer to specific technical questions but lacks sense of history, taste, and human experience, requiring careful use and ...

Artemis II crew see first glimpse of far side of Moon [video]

https://ichef.bbci.co.uk/news/480/cpsprodpb/1492/live/74921060-2f98-11f1-a79a-77e93010d956.jpg.webp
Nasa's Artemis II crew saw the far side of the Moon for the first time. They shared a photo of the Orientale basin, marking the first time it's been seen with human eyes.

Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud

https://raw.githubusercontent.com/kessler/gemma-gem/main/screenshot.png
Gemma Gem is a browser AI assistant running Google's Gemma 4 model on-device via WebGPU. It can read pages, fill forms, and answer questions without cloud or data transfer.

Endian wars and anti-portability: this again?

The author argues that portability is essential in the open source software community, and refusing ports to older architectures is a disservice to the community. They believe that both big and little endian systems are necessary for a healthy computing ecosystem.

Case study: recovery of a corrupted 12 TB multi-device pool

https://opengraph.githubassets.com/96d9816b400a10011dd35e046013c3dd1a4b5272eb15d656709761c81e54ec5f/kdave/btrfs-progs/issues/1107
A severely corrupted 12 TB btrfs pool was recovered with 7.2 MB data loss after a hard power cycle. Custom C tools built against the btrfs-progs API eventually succeeded where native repair paths failed.
https://opengraph.githubassets.com/0f10ec38a49dd48b831c471446117ce34e884d8f68fbcc8f5fd0be61743e2e27/mikf/gallery-dl/discussions/9304
I've received an email regarding a Fakku ™️ DMCA involving gallery-dl as well as 28 other repositories: INFRINGING FILES: gallery_dl/extractor/nhentai.py - NHentai extractor gallery_dl/extracto...

Running Gemma 4 locally with LM Studio's new headless CLI and Claude Code

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Google's Gemma 4 model is a mixture-of-experts architecture that runs well on local hardware, offering zero API costs, no data leaving the machine, and consistent availability. The 26B-A4B variant is a sweet spot for local inference, delivering roughly 10B dense-equivalent quality at 4B inference cost, making it suitable for tasks like code review, drafting, and testing prompts.

We replaced Node.js with Bun for 5x throughput

https://trigger.dev/blog/firebun/rss.png
The user replaced Node.js with Bun in a latency-sensitive service, achieving a 5x throughput increase and 28x better max latency. However, they encountered a memory leak in Bun's HTTP model, which was fixed by resolving pending promises and adjusting idle timeouts.

Rendering arbitrary-scale emojis using the Slug algorithm

https://leduyquang753.com/assets/images/blog/2026/4/4/COLRv0.png
With the recent (very generous) release of Eric Lengyel's Slug algorithm into the public domain, an open-source implementation has quickly made its way into the HarfBuzz repository as a new HarfBuzz GPU library. (Yes, HarfBuzz is no longer just a text shaping library; it also handles glyph rendering now.) However, currently the library only directly deals with rendering ordinary ...

Winners of the 2026 Kokuyo Design Awards

https://spoon-tamago.com/wp-content/uploads/2026/04/kokuyo-design-award-2026-top.jpg
The Kokuyo Design Awards, held by 120-year old stationery firm KOKUYO, recognizes innovative stationery designs. This year's winners include Before Note, a customizable notebook, and other designs that emphasize individuality and sustainability.

Employers use your personal data to figure out the lowest salary you'll accept

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Show HN: Modo – I built an open-source alternative to Kiro, Cursor, and Windsurf

https://raw.githubusercontent.com/mohshomis/modo/main/resources/modo-demo.gif
The user built a standalone desktop IDE called Modo, which offers a structured workflow from prompts to code. Modo is open-source and built on top of Void editor, with features like AI chat, inline edit, and task management.

Signals, the push-pull based algorithm

https://willybrauner.com/assets/signal-cover-meta.webp
We have been using Signals in production for years via several modern front-end frameworks like Solid, Vue, and others, but few of us are able to explain how they work internally. I wanted to dig into it, especially diving deep into the push-pull based algorithm, the core mechanism behind their reactivity. The subject is fascinating. Imagine an application as a world where we describe the set ...

Why Switzerland has 25 Gbit internet and America doesn't

https://sschueller.github.io/posts/the-free-market-lie/title-image.png
Switzerland's fast and affordable internet is due to its highly regulated telecom sector with strong oversight and government-backed infrastructure projects. The country's model, which treats fiber infrastructure as a shared asset, allows genuine competition and choice among providers.

Sheets Spreadsheets in Your Terminal

https://raw.githubusercontent.com/maaslalani/sheets/main/examples/demo.gif
gg, G, 5G, gB9: Jump to the top, bottom, a row number, or a specific cell 0, ^, $: Jump to the first column, first non-empty column, or last non-empty column in the row zt, zz, zb,: Align the current row to the top, middle, or bottom of the window i, I, c: Edit the current cell, edit from the start, or clear the cell and edit

Usenet Archives

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In Japan, the robot isn't coming for your job; it's filling the one nobody wants

https://techcrunch.com/wp-content/uploads/2022/09/GettyImages-965917342.jpg?w=1024
Japan aims to capture 30% of the global physical AI market by 2040, driven by labor shortages and demographic pressures. The country is leveraging its industrial strength and expertise in robotics to advance automation and develop full-stack systems integrating hardware, software, and data.

Music for Programming

The list appears to be a collection of electronic music tracks from various artists. The tracks are from different genres and styles.

The Mechanics of Steins Gate (2023) [pdf]

https://repository-images.githubusercontent.com/680778275/28c73688-1f10-47dd-9896-98cbb3502c84
A complete guide to the mechanics of Steins;Gate. Contribute to Votuko/steins-gate-mechanics development by creating an account on GitHub.

Computational Physics (2nd Edition) (2025)

https://websites.umich.edu/~mejn/cp2/images/cover.png
This website offers resources for the book Computational Physics, including sample chapters, programs, and exercises. Users can download and use the material for instruction, learning, or personal interest.

A tail-call interpreter in (nightly) Rust

The user implemented a tail-call interpreter in Rust using the become keyword, achieving a 40-50% speedup on ARM64 and 2x speedup on x86-64 compared to their previous Rust implementation and hand-coded ARM64 assembly. However, the interpreter still lags behind the assembly backend, and its performance on WebAssembly is significantly worse, with a 1.2-4.6x slowdown compared to native performance.

Caveman: Why use many token when few token do trick

https://camo.githubusercontent.com/9e9c879d0179e6b0b9dbe2cab5ddbb9dedaf7962e1680c51b89f6f2d4aaa412a/68747470733a2f2f656d2d636f6e74656e742e7a6f626a2e6e65742f736f757263652f6170706c652f3339312f726f636b5f31666161382e706e67
Claude Code skill reduces token usage by 75% by speaking like a caveman. It simplifies complex tech explanations into few tokens.