“Stop Designing Languages. Write Libraries Instead” (2016)

A friend thinks programming languages are similar and that libraries are what make a language productive. He loves Ruby on Rails but doesn't care about Ruby's features.

A4 Paper Stories

The user shares a measuring technique using A4 paper to estimate dimensions of objects. They explain the dimensions of A4 paper and how it can be used to measure objects.

The Eric and Wendy Schmidt Observatory System

https://ssci.imgix.net/wp-content/uploads/2025/12/SchmidtObservatory_Banner2.png?max-w=2000&auto=format,compress&q=80
The Eric and Wendy Schmidt Observatory System pioneers a new paradigm for astronomical observatories, accelerating discovery with rapid development and open data. It empowers researchers globally to engage in frontier astrophysics through accessible and responsive scientific infrastructure.

Show HN: KeelTest – AI-driven VS Code unit test generator with bug discovery

Generate pytest suites that actually run - and expose issues in your code. 90% average pass rate. Source bugs flagged with fix suggestions. KeelTest is a VS Code extension that installs in seconds. No complex setup, no external services. Moving beyond simple prompts. We combined static analysis with a multi-step verification pipeline to deliver production-grade tests. We analyze control flow, ...

Formal methods only solve half my problems

The user proposes developing tools that combine formal methods with simulation to help design and optimize distributed systems, addressing limitations of current approaches. This would enable precise quantitative predictions of design performance, guiding investments and identifying risks, and bridge the gap between formal methods and systems and database research communities.

Htmx: High Power Tools for HTML

https://opengraph.githubassets.com/494ce30e438858ecd39431b448ccb1a9dcebc9261ad472266f61b3a945449af0/bigskysoftware/htmx
htmx is a library that simplifies building modern user interfaces with AJAX, CSS Transitions, WebSockets, and Server Sent Events in HTML. It uses attributes to make development easier and includes a testing framework for verifying functionality.

Vector graphics on GPU

https://gasiulis.name/vector-graphics-on-gpu/block-origin.svg
A GPU-assisted approach to rasterization of vector shapes involves dividing the screen into blocks, processing segments within each block, and using a cover table to efficiently calculate pixel coverage. This approach can achieve significant performance boosts, with a GPU-assisted version being 10-15 times faster than a heavily optimized software renderer for image fills.

The first new compass since 1936

Stop Doom Scrolling, Start Doom Coding: Build via the terminal from your phone

https://private-user-images.githubusercontent.com/114448747/530833069-bda532b6-3963-4ace-907b-ebbf9460032c.jpeg?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.7pZ0l3a8OTZuGC2L0k8SuTK3b8x7lpmTyaw0hLZlyN8
The user set up "Doom Coding" to code remotely via phone using Tailscale, Termius, and Claude Code. They share a 5-minute setup guide and invite contributions to improve the process.

Optery (YC W22) Hiring a CISO and Web Scraping Engineers (Node) (US and Latam)

Optery is a profitable automated opt out software that empowers individuals and businesses to control their personal data. It has received multiple awards and raised over $9M in funding from top investors.

Opus 4.5 is not the normal AI agent experience that I have had thus far

https://burkeholland.github.io/assets/convert-me.png
The author initially doubted AI coding agents but now believes they can replace developers after using Opus 4.5, which built a Windows utility and a mobile app with a backend setup. The author is now building multiple apps with Opus 4.5, feeling both exhilarated and depressed about the rapid progress.

Electronic nose for indoor mold detection and identification

The creator of Claude Code's Claude setup

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Show HN: SMTP Tunnel – A SOCKS5 proxy disguised as email traffic to bypass DPI

https://opengraph.githubassets.com/d5b413e0c02420f67815284d9ef1bc018795e5d06fc11cb080b17df3b40a112b/x011/smtp-tunnel-proxy
The smtp-tunnel project creates a high-speed covert tunnel to bypass DPI firewalls by disguising TCP traffic as SMTP email communication. It allows users to add, remove, and list users, and provides a client and server configuration for secure and private communication.

A 30B Qwen model walks into a Raspberry Pi and runs in real time

https://byteshape.com/images/hf-logo-original.svg
ByteShape consistently produces better models than Unsloth and MagicQuant, delivering higher tokens per second at the same quality or higher quality at the same speed across CPUs and GPUs. The takeaway is to treat memory as a constraint, not a goal, and optimize for the tradeoff curve of TPS versus quality, with ByteShape landing on the better side of the curve.

Show HN: Comet MCP – Give Claude Code a browser that can click

https://camo.githubusercontent.com/510d1c8a476b7192b4edfcc72b8da89c7d54be6b30b19569049d270e60fdd3d2/68747470733a2f2f676c616d612e61692f6d63702f736572766572732f4068616e7a696c692f636f6d65742d6d63702f6261646765
An MCP server that connects Claude Code to Perplexity Comet - enabling agentic web browsing, deep research, and real-time task monitoring. Browser automation MCPs (like browser-use) are agentic but use a generic LLM to control a browser - less polished, more fragile Comet is Perplexity's native agentic browser - their AI is purpose-built for web research, deeply integrated with search, ...

Gnome dev gives fans of Linux's middle-click paste the middle finger

https://regmedia.co.uk/2019/09/06/finger_shutterstock.jpg
GNOME developers plan to remove middle-click paste behavior from their defaults, citing it as "an X11ism." This change may also affect Firefox, as a developer has filed a bug to remove the feature.

On the slow death of scaling

https://static.ssrn.com/cfincludes/img/icons/icon-adobe-pdf.svg
The essay "On the Slow Death of Scaling" argues that relying solely on scaling for AI progress is uncertain and rapidly changing. This shift ignores other key levers of progress, suggesting disruptions are ahead.

Vietnam bans unskippable ads

https://media.urbanistnetwork.com/saigoneer/article-images/2026/01/06/2b.jpg
Vietnam's Decree No. 342 will regulate online ads starting February 15, 2026, with stricter controls on ad duration and user experience. The decree targets 11 groups of environmentally and health-hazardous goods and services with stricter regulations.

Investigating and fixing a nasty clone bug

The user spent several hours debugging a bug in their bors GitHub merge bot, which was caused by a shallow clone of an HTTP request body in the octocrab crate, leading to an empty body when the request was retried. The user fixed the issue by adding a deep copy of the request body and submitted a pull request to the octocrab crate, which was merged and included in the 0.49.1 release.

I wanted a camera that doesn't exist, so I built it

A hobbyist photographer and programmer built a custom camera body from a Lumix G9ii, inspired by Leica M rangefinders, with a goal of creating a compact and beautiful camera. Despite facing numerous challenges and setbacks, the project provided valuable experience and insights into the complexities of camera design and electronics.

Oral microbiome sequencing after taking probiotics

https://blog.booleanbiotech.com/images/oral_biogaia.jpg
The user tested BioGaia Prodentis, an oral probiotic, using 16S sequencing from Plasmidsaurus and found no detectable colonization of L. reuteri in their mouth. However, the oral microbiome did change significantly, with a massive increase in S. salivarius and other species, suggesting a potential impact on oral health despite the lack of L. reuteri colonization.

We recreated Steve Jobs's 1975 Atari horoscope program

The ISEE Trajectories

https://www.drmindle.com/wp-content/uploads/2026/01/ISEE-mountain-layers.jpg
As a high school band parent, each year I go through the cycle of the Fall excitement when the marching season starts followed by the Spring emotions when the band program wraps in a final performance and ceremony. For the last two years, I can’t help but feeling sad when the seniors come on stage being honored and bidding their farewell. My sadness doesn’t come from the fact that I will ...

What *is* code? (2015)

The author, a programmer, explains that software development is a complex and misunderstood field that requires a deep understanding of code and its culture. He aims to demystify code and the people who create it, highlighting the importance of understanding how software works in today's world where technology dominates our lives.

CES 2026: Taking the Lids Off AMD's Venice and MI400 SoCs

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AMD showed off Venice series server CPUs and MI400 series datacenter accelerators at CES 2026, featuring improved packaging and increased core counts. The Venice series has up to 256 cores and 3GB of L3 cache, while the MI400 series has 12 HBM4 dies and 2 nanometer and 3 nanometer compute and IO dies.

Calling All Hackers: How money works (2024)

https://phrack.org/images/p40ylogo.png
The author, a hacker and CEO, shares their experience walking the paths of hacking and small business ownership, highlighting the importance of understanding how the world works and using that knowledge to bring about change. They discuss various financial concepts, including fixed income, equities, and shareholder value, and how they relate to the world of hacking and finance.

Sergey Brin's Unretirement

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Launch HN: Tamarind Bio (YC W24) – AI Inference Provider for Drug Discovery

Deniz and Sherry from Tamarind Bio provide AI drug discovery services to biopharma companies using open-source models. Their platform offers a user-friendly interface for non-technical users and supports model pipelines, fine-tuning, and more.

High-Performance DBMSs with io_uring: When and How to use it

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Researchers studied io_uring's benefits in modern database systems, finding it delivers greatest benefits in storage-bound and network-bound workloads. They derived guidelines for designing I/O-intensive systems using io_uring, resulting in a 14% performance improvement in PostgreSQL.