Show HN: SQL-tap – Real-time SQL traffic viewer for PostgreSQL and MySQL

https://raw.githubusercontent.com/mickamy/sql-tap/main/docs/demo.gif
sql-tap captures database queries in an interactive terminal UI without code changes. It tracks queries, transactions, and EXPLAIN, streaming events via gRPC.

NPMX – a fast, modern browser for the NPM registry

https://npmx.dev/__og-image__/static/og.png
a fast, modern browser for the npm registry. Search, browse, and explore packages with a modern interface.

Understanding the Go Compiler: The Linker

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The linker takes separate object files and combines them into a single executable by resolving symbols, eliminating dead code, and patching relocation addresses. It organizes the executable into sections and segments with appropriate permissions, then writes it out in the OS-specific format, such as ELF, Mach-O, or PE.

Show HN: Data Engineering Book – An open source, community-driven guide

https://opengraph.githubassets.com/91bae4f6346b97594878848ad480310df77d7c10eb4a68ac7e770d41ca85dead/datascale-ai/data_engineering_book
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GPT-5.2 derives a new result in theoretical physics

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Researchers at OpenAI and universities proposed a formula for gluon amplitudes, which was verified by an internal model and human authors. The work shows that a previously expected zero amplitude is nonzero under specific conditions, opening new questions in particle physics.

Common Lisp Screenshots: today's CL applications in action

Today's Common Lisp applications in action

Building a TUI is easy now

https://hatchet.run/assets/og-PqKfvZWg.png
The user built a terminal-based user interface (TUI) for Hatchet using Claude Code and Charm stack libraries, which was surprisingly easy and fast to develop, and received positive feedback from users. The user learned that using a coding agent like Claude Code can significantly speed up development and testing, especially when combined with a modular design, proper specifications, and ...

Adventures in Neural Rendering

https://interplayoflight.wordpress.com/wp-content/uploads/2025/12/image.png?w=1024
The user experimented with neural networks, specifically multilayer perceptrons (MLPs), to encode signals in graphics rendering, achieving promising results in encoding radiance and irradiance, but struggling with specular BRDFs. The user found that MLPs are relatively easy to implement but require careful tuning of parameters, training time, and inference cost to produce useful results, and ...

Font Rendering from First Principles

https://mccloskeybr.com/images/font_rendering_4.gif
The user implemented a font rendering system from scratch, focusing on the TrueType (TTF) file format, and encountered challenges such as validating data, parsing quadratic Bezier curves, and handling compound glyphs. The user eventually switched to using Signed Distance Fields (SDFs) for font rendering, which provided better results and scalability, and implemented a shader to convert SDF ...

Gradient.horse

https://gradient.horse/files/mug.jpg
Users can draw horses with AGI filtering, and click/tap to make them jump or fall off screen. A Horse Amnesty button allows previously deleted horses to be restored.

Show HN: I spent 3 years reverse-engineering a 40 yo stock market sim from 1986

https://www.wallstreetraider.com/images/harvard1960s.png
Michael Jenkins created Wall Street Raider, a complex financial simulator game, over four decades, but failed to find a developer to modernize it until Ben Ward, a 29-year-old software developer, successfully wrapped a new interface around the game's engine. Ward's efforts led to the game's release on Steam, allowing a new generation of players to experience the game's depth and complexity, ...

The EU moves to kill infinite scrolling

https://www.politico.eu/cdn-cgi/image/width=1160,height=816,quality=80,onerror=redirect,format=auto/wp-content/uploads/2026/02/12/GettyImages-1773279325-scaled.jpg
The prime minister has endured years of abuse on the social media platforms he now seeks to regulate.

gRPC: From service definition to wire format

https://kreya.app/logo.png
gRPC is a transport protocol built on HTTP/2, enabling streaming models and multiplexing. It uses Protocol Buffers for contract-first API definition and native support for streaming, metadata, and compression.

Backblaze Drive Stats for 2025

https://www.backblaze.com/blog/wp-content/uploads/2026/02/Q4-2025-Drive-Stats-Blog-Header-1440x820-1.png
Backblaze monitored 341,664 drives in 2025, with 337,192 hard drives analyzed after removing boot and hard drives that didn't meet criteria. The annualized failure rate for 2025 is 1.36%, down from 1.55% in 2024.

Monosketch

The text is a collage of various computer science concepts, network protocols, and a web application. It appears to be a technical diagram or a presentation.

OpenAI has deleted the word 'safely' from its mission

https://images.theconversation.com/files/717796/original/file-20260211-56-pv2w2t.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip
OpenAI removed "safely" from its mission statement, shifting focus from safety to profits. This change coincides with its transformation into a for-profit business, raising concerns about accountability and governance.

Ask HN: Are there examples of 3D printing data onto physical surfaces?

I had a thought about encoding a very small amount of data onto some kind of "disk" using 3D printing as the mechanism for filament-based storage. The assumption was that using common 3D printer measurement tools (like for bed-leveling) would provide a way to read back whatever data was encoded onto the surface. Since that seems like a pretty well-known concept, crudely applied to a ...

I'm not worried about AI job loss

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Matt Shumer's essay "Something Big Is Happening" went viral, but its predictions of AI causing mass job loss and rapid transformation are exaggerated. The author argues that human labor will be preserved by complementarity with AI, and that the transition to a future with AI will be gradual and beneficial.

WolfSSL sucks too, so now what?

https://blog.feld.me/static/site_logo_512.png
The author had a bad experience with WolfSSL due to its lack of RFC compliance with TLS 1.3 middlebox compatibility mode. This caused issues with Erlang/OTP's ssl library implementation.

CSS-Doodle

This CSS code defines a set of functions and variables for generating complex patterns and designs using CSS Doodle, including grid systems, color manipulation, and shape generation. The code also includes support for JavaScript Math functions, shaders, and SVG filters, allowing for a wide range of creative possibilities.

The wonder of modern drywall

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The author discusses the evolution of wall construction from wattle-and-daub to modern drywall, highlighting the benefits of drywall's uniformity and ease of use. Drywall has improved insulation, reduced labor, and increased safety, but still has vulnerabilities like water damage.

How did the Maya survive?

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Francisco Estrada-Belli, an archaeologist, discovered his passion for Maya history at age 7 visiting Tikal ruins in Guatemala. He now estimates 16 million people lived in the Maya lowlands, a cosmopolitan region with sophisticated trade and agriculture.

Advanced Aerial Robotics Made Simple

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In this video, we build a giant spinning drone with a properly de-spun top platform for orientation. Not only does it need to be controlled and flyable, it also needs to survive in combat against 100+ smaller RC airplanes trying to take it down...

Oh, good: Discord's age verification rollout has ties to Palantir co-founder

https://cdn.mos.cms.futurecdn.net/Ba252N3UzmCkmpAK2B5t3j.jpg
Discord is rolling out global age verification restrictions, partnering with age verification vendor Persona, whose investors include Peter Thiel. This has raised concerns about privacy and surveillance due to Thiel's involvement with Palantir and ICE.

Faster Than Dijkstra?

https://systemsapproach.org/wp-content/uploads/2024/02/SA-Logo-2-2297729393-e1709257423762-1024x575.png
A new algorithm for finding shortest paths in networks claims to improve on Dijkstra's classic approach by avoiding the need for sorting, but its practical implications are unclear due to the small size of typical network sizes. The actual scaling limits of the new algorithm are uncertain, and other factors such as fast failure detection and routing convergence time are more important for ...

Show HN: Skill that lets Claude Code/Codex spin up VMs and GPUs

Cloud sandboxes for development. Instant remote VMs with VS Code, terminal, VNC, and browser automation via Chrome CDP.

What dating apps are optimizing. Hint: It isn't love

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Green’s Dictionary of Slang - Five hundred years of the vulgar tongue

‘Quite simply the best historical dictionary of English slang there is, ever has been […] or is ever likely to be’​ — Journal of English Language and Linguistics

Fix the iOS keyboard before the timer hits zero or I'm switching back to Android

The iOS keyboard has been broken since at least iOS 17 and is getting progressively worse. The user is threatening to switch to Android if it's not fixed in iOS 27 or earlier.

Implementing Auto Tiling with Just 5 Tiles

https://www.kyledunbar.dev/assets/images/bitmask_representation.webp
The user implemented an auto-tiling system using 5 tiles to create 16 different tile pieces by rotating or flipping them programmatically. The system separates physical tiles from visuals, allowing for level saving and loading, and includes a Godot-specific implementation with an EditorInspectorPlugin for importing tilemap data into the editor.