Hacker News Daily — September 27, 2026

30 stories · September 27, 2026

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

In this issue

1

Go Concurrency Distilled

antonz.org · 357 points · Discussion

This mini-book provides a brief overview of many concurrency topics in Go. Each topic comes with interactive examples — feel free to experiment with them by changing the code and clicking Run. There's…
2

Flip Fluid on Flip Dots

mitxela.com · 328 points · Discussion

24 Sep 2026 Progress: Complete Here's the story of how I put a FLIP fluid simulation on a flipdot electromechanical display. FLIP stands for Fluid Implicit Particle, and yes, the primary motivation…
3

On caring for user data: NeoVim caused Vim undo files to be deleted

unsung.aresluna.org · 318 points · Discussion

A Mastodon post by computer scientist David Chisnall has a very Unsung opener: I have used vim since around 2000. I have written five books, a PhD thesis, a few dozen papers and over 150 articles with…
4

The Normalization of Inexplicable Failures

ihatethefuture.com · 210 points · Discussion

In a recent episode of President Curtis, the President struggles with opening a door on two separate occasions. These doors don't work because there are obstructions in the way: a body initially, then…
5

Ember-1

fireworks.ai · 209 points · Discussion

Ember-1: half the tokens, same answers Ember-1 is a new specialized model from Fireworks Research that delivers Kimi K3’s quality with 40% fewer tokens. Built on Kimi K3, it learned to cut unnecessary…
6

In an $80 motel room, a discovery to shed light on the origins of life

nytimes.com · 171 points · Discussion

Read via the links — full text wasn’t available.
7

When did Google get so weird?

sancho.bearblog.dev · 136 points · Discussion

27 Sep, 2026 I recently had an experience while doing a simple Google search that was so profoundly weird that it stopped me in my tracks. Understanding this Google search experience involves…
8

PostmarketOS is rebranding as Nura

nura.eco · 132 points · Discussion

After a one and a half year selection process, the new name of the operating system formerly known postmarketOS has been announced during the mystery talk of our very own conference. From now on this…
9

Writing Efficient C++ Code (2013)

asawicki.info · 118 points · Discussion

This article was originally published in Polish in issue 4/2013 (11) of Programista magazine. Although high-level languages—scripting, interpreted, or running in a virtual machine—have many advantages…
10

Replacing the old battery on rechargeable bike lights

jvns.ca · 110 points · Discussion

Hello! Recently I needed bike lights for my bike. And I remembered that I already had rechargeable bike lights that I bought ten years ago, that I hadn’t tried in a long time. I tried to recharge…
11

Fakecloud: Local AWS cloud emulator for integration tests

fakecloud.dev · 87 points · Discussion

Local AWS cloud emulator for integration tests. Run your app with normal AWS clients, stay fully local, and use fakecloud SDKs when your tests need deeper visibility. 105 services. 7,508 operations.…
12

Show HN: TinyAIArena watch AI agents battle it out

tinyaiarena.com · 79 points · Discussion

Did you ever click on an “AI Arena” expecting glorious battle and instead get a boring benchmark? If so, this project is for you: proper life-or-death fights between four models on a picturesque 8×8…
13

Show HN: Lofi Cities – Pixel-art city nights with browser-generated lofi

loficities.com · 77 points · Discussion

About Lofi Cities Lofi Cities is a free web app that pairs animated pixel-art city nights with endless lofi music generated live in your browser. Pick a city and let it run: every scene is a 480×270…
14

Improving site performance by shipping more CSS

github.blog · 72 points · Discussion

How we fully migrated github.com away from CSS-in-JS. Share: The Primer Design System powers many of the experiences you see on GitHub today. From buttons to banners to breadcrumbs, these foundational…
15

Video CDs Break Windows Explorer

clydesnotes.blogspot.com · 65 points · Discussion

There is an odd bug in Windows related to Video CDs. To reproduce it: Insert a Video CD (if you don't have one, you can download this file, extract it and burn it with something that supports bin+cue…
16

C's Flexible Integer Sizes Were Not a Design Mistake

pikuma.com · 61 points · Discussion

Word sizes, strange machines, and why int was never meant to mean 32 bits. C's flexible integer types were not a design mistake. They were how the language achieved portability in a world of 12, 18,…
17

Don't couple your Go code to GitHub

iain.rocks · 56 points · Discussion

Iain Cambridge Home Blog Categories Sep 27, 2026 One of the good features of Go is that you namespace your code with the location to fetch the code. This means if you host your Go code at…
18

Show HN: Building a Markdown editor for Mac, iOS and web

markdown.beauty · 54 points · Discussion

I've spent the last 10 months building Beauty: a local, powerful greco-roman Markdown editor where the page looks finished while you type. It runs on the Mac, iPhone and in the browser, and the…
19

Faster prompt lookup drafting in llama.cpp

jadidbourbaki.github.io · 45 points · Discussion

42x faster prompt lookup drafting in llama.cpp Hayder Tirmazi [ homepage ] [ github ] [ twitter ] This article was originally published on 2026-09-26. TL;DR I make drafting for prompt lookup decoding…
20

The state of SIMD in Rust in 2026

shnatsel.github.io · 38 points · Discussion

A lot of progress was made since last year, and I made some of it! After last year's survey I started contributing to the SIMD library that seemed the most promising. One thing led to another, and now…
21

Fragment of oldest known peace treaty found in Turkey

livescience.com · 33 points · Discussion

Archaeologists have discovered a 3,400-year-old fragment of the world's oldest known peace treaty, the Turkish Ministry of Culture and Tourism has announced. The agreement, known as the Treaty of…
22

The Cartesian Hand: In-Hand Manipulation with All-Linear Fingers

generalroboticslab.com · 32 points · Discussion

Read via the links — full text wasn’t available.
23

John Coltrane Centenary's – Impulse Records Release the Legendary Tiberi Tapes

jazzwise.com · 29 points · Discussion

Read via the links — full text wasn’t available.
24

Alan Kay's answer to "Did the ENIAC have a BIOS"?

quora.com · 26 points · Discussion

Read via the links — full text wasn’t available.
25

Oral history of John Chowning, inventor of FM synthesis [video]

youtube.com · 20 points · Discussion

https://en.wikipedia.org/wiki/John_Chowning
26

Allegations of US interference in Quebec election

globalnews.ca · 19 points · Discussion

Allegations of possible U.S. interference dominated the Quebec election campaign Friday. This prompted Coalition Avenir Québec Leader Christine Fréchette to seek a meeting with Prime Minister Mark…
27

Imp is a full port of DSPy to the BEAM

github.com · 17 points · Discussion

https://hex.pm/packages/imp https://dspy.ai/current/
28

What I did at Recurse Center

thill.me · 14 points · Discussion

I spent the summer at Recurse Center, a programming retreat in Brooklyn, at the recommendation of my friend Cory. These are some things I did there. Participated in study groups RC has regular study…
29

Kicki: A DECsystem1060 – Interim Computer Museum

icm.museum · 13 points · Discussion

KICKI is a dual PDP-10 model KI10 sn 522 and 606. While KICKI is current in preservation, we hope one day to have it running again. As of June 2025 former DEC LCG FE Gary Solomon has confirmed that…
30

Wiki Deep dive into Standard diving dress

en.wikipedia.org · 10 points · Discussion

"},"caption":{"wt":"Diver in standard diving dress, [[Ožbalt]], [[SR Slovenia|Slovenia]] (1958)"},"acronym":{"wt":""},"other_names":{"wt":"Heavy diving gear, deep sea diving…