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The NASA/ESA Mars Sample Return mission has been canceled

https://www.science.org/content/article/nasa-s-mars-sample-return-mission-dead
129•Muhammad523•1h ago•72 comments

Xiaomi MiMo v2.6

https://mimo.xiaomi.com/mimo-v2-6
75•volf_•27m ago•13 comments

What Sun got wrong

https://bcantrill.dtrace.org/2026/09/20/what-sun-got-wrong/
409•chmaynard•6h ago•228 comments

Attention is all you have

https://alicegg.tech/2026/09/21/attention
429•zer0tonin•6h ago•127 comments

AI coding has made CI a bottleneck, so we reworked ours to keep up

https://linear.app/now/ci-bottleneck-reworked
37•julian_digital•1h ago•19 comments

Why does mathmain need an encrypted loader?

https://safedep.io/mathmain-encrypted-loader/
71•abhisek•2h ago•16 comments

The Advisory Group on Mathematics and Artificial Intelligence

https://terrytao.wordpress.com/2026/09/21/advisory-group-on-mathematics-and-artificial-intelligence/
28•digital55•1h ago•11 comments

Turn off and restrict access to Apple Intelligence features on Mac

https://support.apple.com/guide/mac-help/turn-restrict-access-apple-intelligence-mchlb2e44f94/mac
158•alwillis•3h ago•96 comments

In Search of a Compositional Theory of Self-Stabilization

http://muratbuffalo.blogspot.com/2026/09/in-search-of-compositional-theory-of.html
25•matt_d•1h ago•1 comments

Transformers Explained Visually

https://poloclub.github.io/transformer-explainer/
9•aray07•56m ago•0 comments

Grok 4.7

https://x.ai/news/grok-4-7
385•meetpateltech•4h ago•328 comments

Apple Copland D11E4 Booting in the Browser

https://www.pagetable.com/300
24•luu•2h ago•2 comments

Advisory Group on Mathematics and Artificial Intelligence

https://openai.com/index/advisory-group-on-mathematics-and-ai/
57•js73js8•3h ago•39 comments

Divide by Depth for Instant 3D

https://gabrieloc.com/2026/09/15/perspective.html
6•gabrieloc•2d ago•1 comments

US halts flights at busy East Coast airports, says fiber line cut

https://www.reuters.com/world/us/faa-halts-some-us-east-coast-flights-due-communication-issues-20...
109•allanbreyes•1h ago•67 comments

Frontier AI on Your Own Hardware

https://timdettmers.com/2026/09/21/dlab-open-source-week/
18•pretext•1h ago•2 comments

A restored PDP-11/83 serving this page on 211BSD Unix

http://pdp1173.com/
73•davepl•4h ago•26 comments

This Digital Radio Gets Messages to the World’s Remotest Locations

https://spectrum.ieee.org/hermes-shortwave-radio-digital-data
57•SamuraiLion•4h ago•31 comments

Kev: Tiny Jev-like family of decision models built on top of Qwen3.5

https://github.com/jaredpalmer/kev/tree/main
352•tosh•13h ago•163 comments

Python Workers are now generally available

https://blog.cloudflare.com/python-workers-ga/
139•torutofu•7h ago•18 comments

Avoiding the babbling-idiot failure in a time-triggered communication system

https://ieeexplore.ieee.org/document/689473
17•ronfriedhaber•2h ago•5 comments

How do Traffic Signals Work (2019)

https://practical.engineering/blog/2019/5/11/how-do-traffic-signals-work
39•at1as•4h ago•27 comments

Fable 5 – Median thinking declined in August

https://twitter.com/Lon/status/2101793422487204027
274•espeed•4h ago•184 comments

Grim Fandango Puzzle Document (1996) [pdf]

http://gameshelf.jmac.org/2008/11/13/GrimPuzzleDoc_small.pdf
344•kelseyfrog•14h ago•83 comments

Show HN: A website that tracks US food prices every day

https://www.kadoa.com/food-prices
6•hubraumhugo•1h ago•0 comments

M5 Ultra Mac Studio Review

https://www.macstories.net/stories/m5-ultra-mac-studio-review-the-dream-mac-for-local-ai-agents/
202•piotrgrabowski•6h ago•188 comments

RoboHarm: Do Frontier Robot Policies Refuse Unsafe Instructions?

https://robocurve.org/roboharm/
4•msadowski•1h ago•0 comments

Noodle Gallery- Open-source, self-hosted alternative to Google Photos and Immich

https://digitalescapetools.com/tools/noodlegallery.html
40•xabd•6h ago•28 comments

macOS 27: Workaround to avoid downloading AI models and save storage

https://www.reddit.com/r/MacOSBeta/comments/1vlnf13/workaround_to_avoid_downloading_ai_models_and/
169•ano-ther•6h ago•77 comments

Heretic removes restrictions from language models

https://heretic-project.org/
206•Bluestein•16h ago•87 comments
Open in hackernews

AI coding has made CI a bottleneck, so we reworked ours to keep up

https://linear.app/now/ci-bottleneck-reworked
34•julian_digital•1h ago

Comments

azkalam•56m ago
If you can pay the setup cost, Bazel will get you build times ~10s with a warm cache for even massive projects.
criemen•14m ago
I lead a bazel conversion for a pretty complex piece of software written in 5+ programming languages and shipping native binaries to all 3 major OSes a few years ago, and it took multiple years to get it done.

For a less complex project (1 programming language, still shipping to all 3 major OSes), with my knowledge and agents I got the bazel conversion done in 2 weeks.

The setup cost for bazel just went down by a lot, and I don't think the industry as a whole is aware of that yet.

rokob•8m ago
Were any of those using JS/TS? I've seen Bazel perform wonders with many compiled languages, but I'm not impressed with the JS ecosystem.
d_sc•49m ago
vitest load balancing on test duration times instead of by file would be a nice performance win
moofeez•29m ago
We actually tried this and (for us) it doesn't lead to enough of a gain that's worth the extra complexity.
mraza007•42m ago
Agentic Coding has been a huge strain on CI, I have been using Bazel to improve our build times and ultimately building customized runners to improve our CI

Anyways great blog post from linear team a lot to learn from it

alexnewman•40m ago
My recent winnowwallet.com still has build times of over 10 minutes. I'm convinced the agent really wants build times around 5m to move at a quick pace. Also to not drive me insane. It took a ton of work to get it down from 45 minutes because my tests launch a full version of the app, and walk it through major usecases while recording video and screenshots. I then use AI to qa this. It also generates its webpage this way. All from CI/CD
xracy•34m ago
Maybe I'm alone in this, but as someone who is in tech, I don't know what CI is, and I don't think it's unreasonable to expect it to have an expansion within the article the first time you use it...

AI is in the cultural zeitgeist, but you gotta expand most other things at least once.

bognition•32m ago
CI -> Continuous Integration

Its best thought of as the testing systems that are run as part of pull request review / merge to main / build processes.

handfuloflight•32m ago
So if you don't know what CI is, what does "I am someone in tech", mean? Marques Brownlee probably doesn't know CI is, but he's also in tech. Because if you by mean "I am in tech" that "I am a software engineer", and you don't know what CI is, then boy; I'd be worried for you.
Retric•20m ago
CI is really only significant on the programming side of things. Networking, systems administration, hardware, etc often don’t have that workflow.
Asmod4n•17m ago
sysadmins CI is hoping the machine still boots after an update. Unless you are lucky you got two identical machines to have a test env.
madrox•23m ago
inshard•12m ago
I just feel apps like linear are increasingly getting in the way of full send agentic development where sub agent orchestration is done through agent to agent messaging, work trees, on demand git restructuring and epoch specific coordination plains, often .md files. The smaller the human component of total product development gets, the more this may be the case.
algesten•11m ago
Good thing Linear has been finished for a long time doesn't need more features, so AI coding can go slow. Oh damn, it's busy becoming the next Jira :(
aliclark•11m ago
In my case it's not the CI that's the bottleneck. It's the human testing side. Does it work, sure. But does it actually do the thing we want (and more importantly) does it do it in a way our customers will understand and actually like?
classictraffic•7m ago
> Moving our workloads off GitHub Actions to third-party runners with faster CPUs, higher-performance storage, and better cache infrastructure gave us faster machines to run the same pipeline on

Yeah, was not surprised to read this. Actions is convenient if you already use GitHub, but it can also be pretty slow. Given reliability is also a major issue with GitHub these days I expect to see more orgs moving to different pipelines

I recommend making a habit of googling or asking AI about terms you run into. As someone who is in tech, you will hear tech jargon your whole career that will not be explained if it's considered standard terminology for the audience being spoken to. It is better to learn to educate yourself than expect others to go out of their way.
ad_fontes•17m ago
Man, what a weird thing to complain about.

Most days I feel like I must be the dumbest person on HN. I don't understand what 80%+ of submissions are about. But if it sounds interesting, I'll dig into it a bit and learn a few things along the way.

Jcampuzano2•15m ago
"AI is in the cultural zeitgeist"

Within the engineering tech sphere, CI/CD have also been terms that have been standard for at least a decade now.

You would probably be rejected from most interviews at the first stage if you didn't vaguely know what they mean at this point.

Linears entire product is tailored towards software engineers/engineers in general or people who work alongside engineers, so its not surprise their posts have a bit of assumed knowledge.