Hacker News Daily — July 27, 2026

30 stories · July 27, 2026

Plus This issue is new — delivery and download are for Plus until it ages into the free archive.

In this issue

1

Kimi-K3 on HuggingFace

huggingface.co · 1238 points · Discussion

Related: Kimi-K3 Technical Report [pdf] - https://news.ycombinator.com/item?id=49070985
2

How is the Bun Rewrite in Rust going?

lockwood.dev · 401 points · Discussion

I think it’s important to be very Canny when someone makes a claim that supports a company’s large valuation. The Bun rewrite seems well positioned as proof-positive that AI and specifically…
3

Decathlon Germany adds Wero payment option to decathlon.de website

sgieurope.com · 268 points · Discussion

Decathlon didn’t just add a new payment button to its German checkout page. It handed European banks their first big-box sporting goods test case at a moment when competition in digital payments is…
4

Should you wash your solar panels?

incoherency.co.uk · 207 points · Discussion

I have a small solar farm and the panels have got visibly dusty. Is cleaning them worthwhile? How much difference does it make? Let's find out. I know that my panels have not been cleaned in the last…
5

Removing React.js from the codebase and adapting Htmx for UI interactivity (2023)

misago-project.org · 193 points · Discussion

Here's how Misago works currently: You request https://misago-project.org. Django view gathers data to render list of threads. Django view renders template that contains almost complete HTML with list…
6

MAI-Cyber-1-Flash inside MDASH

microsoft.ai · 193 points · Discussion

Picking the right model for the task Security is an always-on mission, and given the enormous volume of inbound attacks, token cost is now the real constraint for defenders. MAI-Cyber-1-Flash was…
7

Modern email can be built from borrowed parts

en.andros.dev · 152 points · Discussion

Let's design the successor to email on top of HTTP, fixing the design flaws SMTP has been dragging along for 40 years. Piece by piece. The goal is not to replace the current mail system, heaven…
8

Libsm64: Mario 64 as a library for use in external game engines

github.com · 149 points · Discussion

The purpose of this project is to provide a clean interface to the movement and rendering code which was reversed from SM64 by the SM64 decompilation project, so that Mario can be dropped in to…
9

The computer that helped win World War II

spectrum.ieee.org · 135 points · Discussion

One summer day in 1941, a British radio operator was monitoring German military frequencies and heard something unexpected in her headphones. A later report called it “strange new music.” Sounding…
10

Judge Rejects Google's Attempt to DMCA Its Way Out of Being Scraped

techdirt.com · 131 points · Discussion

from the pulling-up-the-ladder dept Back in December we called out Google for filing a DMCA 1201 lawsuit over companies scraping Google’s results. Almost everything about the lawsuit seemed…
11

VLC for Unity now supported on Linux

code.videolan.org · 131 points · Discussion

Loading... You are seeing this because the administrator of this website has set up Anubis to protect the server against the scourge of AI companies aggressively scraping websites. This can and does…
12

Paged Out #9 [pdf]

pagedout.institute · 122 points · Discussion

Read via the links — full text wasn’t available.
13

Glue bonds to nonstick surfaces and wipes clean with ethanol

cen.acs.org · 114 points · Discussion

Materials scientists are on the hunt for an adhesive that binds strongly to diverse surfaces and can be easily removed and reused. Conventional polymers like epoxies achieve high strength through…
14

Watching Go's new garbage collector move through the heap

theconsensus.dev · 99 points · Discussion

Read via the links — full text wasn’t available.
15

Exploiting Volvo/Eicher's fleet platform to gain control over all users/vehicles

eaton-works.com · 93 points · Discussion

Eaton • Jul 27, 2026 Key Points / Summary VE Commercial Vehicles, a joint venture between the Volvo Group and Eicher Motors, builds and maintains a fleet management system called My Eicher for Indian…
16

First Robotic Satellite Servicer Launched

nrl.navy.mil · 67 points · Discussion

Read via the links — full text wasn’t available.
17

The Birth of the American 12-string Guitar (2013)

harpguitars.net · 64 points · Discussion

INTRODUCTION For those wishing to skip to the heart of the matter, just jump to the end of this article.   However, as it took me quite a while to get there, you may find the provenance, and my…
18

Show HN: FeyNoBg – Automatic background removal model and training library

usefeyn.com · 58 points · Discussion

Hey HN, I’m Shreyash from Feyn. We help companies build custom models from their data. Today, we’re releasing FeyNoBg, an automatic background removal model. Alongside it, we're open-sourcing NoBg,…
19

Self-contained highly-portable Python distributions

gregoryszorc.com · 56 points · Discussion

This project produces self-contained, highly-portable Python distributions. These Python distributions contain a fully-usable, full-featured Python installation: most extension modules from the Python…
20

Towards a Theory of Bugs: The Ruliology of the Unexpected

writings.stephenwolfram.com · 55 points · Discussion

“My Program Did the Wrong Thing!” Bugs are a ubiquitous phenomenon in the software world. And—essentially by definition—each one of them is somehow unique and unexpected. But—particularly given their…
21

The Artist Who Colored Ghibli

animationobsessive.substack.com · 53 points · Discussion

A still from My Neighbor Totoro (1988) We’re back! With the mid-year break over, the Animation Obsessive newsletter returns with a new issue. We’ve done a ton of prep over the past few weeks to get…
22

Professor's invisible prompt trap catches 32/35 students cheating with AI

techspot.com · 46 points · Discussion

Serving tech enthusiasts for over 25 years. TechSpot means tech analysis and advice you can trust. Facepalm: Modern problems require modern solutions – according to the meme. In this case,…
23

Show HN: Let's Seal – Let's Encrypt for document signing, free and self-hosted

github.com · 38 points · Discussion

TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free.…
24

How real are real numbers? (2004)

arxiv.org · 27 points · Discussion

Mathematics > History and Overview arXiv:math/0411418 (math) [Submitted on 18 Nov 2004 ( v1 ), last revised 29 Nov 2004 (this version, v3)] View PDF Abstract: We discuss mathematical and physical…
25

Bytecode-to-Source Mapping

tidefield.dev · 21 points · Discussion

I encountered this problem while working through the challenges in chapter 14 of Robert Nystrom’s Crafting Interpreters. Note: Production VMs are more sophisticated, though I’ll share how this is…
26

Tokio Gives Progress, Not Ordering: Scheduling 1M Tasks

pranitha.dev · 19 points · Discussion

This is a prequel to my previous article, Your Rust Service Isn't Leaking — It Could Be the Allocator. In that post, I wrote about how a few memory allocators behaved differently under our workload.…
27

Launch HN: Rise Reforming (YC S26) – Turning Waste Gases into Valuable Chemicals

rise-reforming.com · 18 points · Discussion

Hi HN! This is George, Lucas, and Jona from Rise Reforming ( https://www.rise-reforming.com/ ). We’re developing a process to convert gas produced at landfills, farms, and wastewater plants (“biogas”)…
28

Beckett the Prophet

theamericanscholar.org · 18 points · Discussion

Every afternoon, I drive to my local YMCA and spend an hour jogging in place on an elliptical machine. At that time of day, I am not in the mood to chat with my neighbors, churning away at their own…
29

Show HN: Infrawrench – A tool to manage cloud and svcs with workflows and chat

infrawrench.com · 17 points · Discussion

Manage everything from one place Connect to 25+ cloud providers and manage hundreds of resource types from a single unified interface. Infrawrench discovers your infrastructure automatically and keeps…
30

Ray tracing massive amounts of animated geometry using tetrahedral cages

gpuopen.com · 15 points · Discussion

The animation scaling problem Ray tracing has become a practical part of real-time graphics, but animated geometry still presents a difficult scaling problem. The paper Ray Tracing Massive Amounts of…