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Luhn credit card checksum using SWAR and SIMD

https://nullprogram.com/blog/2022/04/30/
1•fanf2•50s ago•0 comments

I am not ambitious enough

https://vester.si/blog/not-ambitious-enough/
1•sputr•2m ago•0 comments

Tell HN: C and C++ are absolute beasts when it comes to performance efficient

1•delduca•5m ago•0 comments

AWS Lambda now supports GitHub Actions to simplify function deployment

https://aws.amazon.com/about-aws/whats-new/2025/08/aws-lambda-github-actions-function-deployment/
1•mariuz•10m ago•0 comments

Mind Blowing Websites Hiding in Plain Sight

https://www.offscopes.com/
18•OffScopes•12m ago•1 comments

Block-Based Configuration Language

https://n16f.net/bcl/specification.html
1•gearnode•16m ago•0 comments

Technical Interviews are realigning with reality through AI

https://cendyne.dev/posts/2025-08-07-technical-interviews-are-realigning-with-reality-through-ai.html
1•furkansahin•16m ago•0 comments

GPT5 Is Horrible

https://old.reddit.com/r/ChatGPT/comments/1mkd4l3/gpt5_is_horrible/
1•druskacik•17m ago•0 comments

Robots.txt for the AI Era but Enforceable

https://aiprivacylicense.com/
1•nabanita•23m ago•1 comments

Air Force buying two Tesla Cybertrucks so it can learn to destroy them

https://www.theregister.com/2025/08/08/usaf_cybertruck_missile_tests/
2•ndsipa_pomu•27m ago•1 comments

Agentic Workflow: What's inside RAGFlow v0.20.0

https://medium.com/@infiniflowai/agentic-workflow-whats-inside-ragflow-v0-20-0-789fdd4397f6
1•vissidarte_choi•28m ago•0 comments

defer-import-eval: proposal for introducing a way to defer evaluate of a module

https://github.com/tc39/proposal-defer-import-eval
1•tilt•30m ago•0 comments

OpenAI is taking GPT-4o away from me – despite promising they wouldn't

https://community.openai.com/t/openai-is-taking-gpt-4o-away-from-me-despite-promising-they-wouldnt/1337378
2•Mzxr•34m ago•0 comments

Show HN: Streamed JSON Lines (A big JSON can't be streamed)

https://medium.com/@marius_18835/streamed-json-lines-using-laravel-crud-wizard-free-cd650e272caa
1•marius-ciclistu•38m ago•0 comments

Bsky Tracker: v2.5.0 Is Live

https://bsky.app/profile/bluesky-tracker.bsky.social
1•pavlostze•39m ago•1 comments

Malicious Ruby Gems Used in Targeted Credential Theft Campaign

https://socket.dev/blog/60-malicious-ruby-gems-used-in-targeted-credential-theft-campaign
1•amalinovic•52m ago•0 comments

HBO Max is going to get more annoying about password sharing

https://www.theverge.com/news/754357/hbo-max-password-sharing-annoying-earnings
2•tosh•53m ago•0 comments

Ask HN: GPT-5 still needs a second nudge for calculation?

1•chandlertsien•56m ago•0 comments

EU Artificial Intelligence Act

https://artificialintelligenceact.eu/
2•jonbaer•57m ago•0 comments

White Mountain Direttissima

https://whitemountainski.co/pages/white-mountain-direttissima
1•oftenwrong•57m ago•0 comments

Linux Desktop Share Tops 6% in 15M-System Analysis

https://www.zdnet.com/article/think-linux-desktop-market-share-isnt-over-6-this-15-million-system-scan-says-otherwise/
3•naves•1h ago•1 comments

OpenAI CEO Sam Altman says GPT-5 scares him – 'what have we done?'

https://www.tomsguide.com/ai/openais-ceo-sam-altman-says-gpt-5-is-so-fast-it-actually-scares-him-maybe-its-great-maybe-its-bad-but-what-have-we-done
3•pera•1h ago•3 comments

Tokenization in Large Language Models

https://seantrott.substack.com/p/tokenization-in-large-language-models
2•tokfan•1h ago•0 comments

Comuniq – A lightweight space for publishing and discussing specific topics

1•01-_-•1h ago•0 comments

Nature study on economic damages from climate change revised

https://www.pik-potsdam.de/en/news/latest-news/nature-study-on-economic-damages-from-climate-change-revised
1•01-_-•1h ago•0 comments

ChatGPT5 can't answer "How many states have R in it's name?"

https://bsky.app/profile/radamssmash.bsky.social/post/3lvtzdl343c2r
5•mattigames•1h ago•1 comments

How to Run Your Own OpenAI GPT OSS Server for Fun and Profit

https://northcodie.blogspot.com/2025/08/how-to-run-your-own-openai-gpt-oss.html
4•nickly•1h ago•2 comments

Understanding Late Binding in Python Closures

https://pythonkoans.substack.com/p/the-forgetful-calligrapher
2•meander_water•1h ago•0 comments

Loyalty programmes are keeping America's airlines aloft

https://www.economist.com/business/2025/08/06/how-loyalty-programmes-are-keeping-americas-airlines-aloft
2•jmsflknr•1h ago•0 comments

US Adds Surprise Gold Bar Tariff in Blow to Switzerland

https://www.bloomberg.com/news/articles/2025-08-08/us-hits-gold-bars-with-tariffs-in-blow-to-switzerland-ft-report
7•petethomas•1h ago•0 comments
Open in hackernews

Linear sent me down a local-first rabbit hole

https://bytemash.net/posts/i-went-down-the-linear-rabbit-hole/
84•jcusch•2h ago

Comments

ivape•2h ago
This is an ad.
jcusch•2h ago
An ad for what? I'm not associated with any of the projects mentioned.
ivape•2h ago
An ad for Linear.
defrost•1h ago
If it's an ad for Linear why is so much text spent on Electric SQL, Zero, and Jazz?
ivape•1h ago
Lol. You figured it out. It’s real. Takes notes everyone, this is how your promote, add some random shit at the bottom to “balance” out the sus.

There’s two types of people in this world - Rubes and Carnies.

mrkeen•39m ago
In that worldview, it's unthinkable that you'd come and warn us about ads out of the goodness of your own heart.

Who paid you for these comments? Atlassian?

dewey•1h ago
It’s a developer writing about a tool they like. If you’d call word of mouth an “ad” the I guess it’s one.
ivape•1h ago
Why do you think marketing is not sophisticated?

Here I’ll offer my services. I’ll pretend to do a technical deep dive of your app for X amount. No one will know, I’ll just act super interested.

When the fuck did anyone ever go “omg this web app so impressive”, never, ever, never, ever.

dewey•1h ago
It’s a choice to always see the worst in everything.

Many blog post submissions here are someone diving into something they like, hardware, software, tool etc. and it’s just because people like to share.

theglenn88_•1h ago
Wow dude you’re being needlessly abrasive.

Did you apply for a job at Linear and get rejected or something?

I think Linear is impressive, I’m a big fan of local first, I’ve built and app that is local first so this post is actually pretty interesting.

If you don’t like it, move along.

jhy•1h ago
Well, perhaps it's an AI writing about a tool...

> No API routes. No request/response cycles. No DTOs. Just… objects that magically sync. It kind of feels like cheating.

lambdas•11m ago
That and the paragraph above:

> What makes this powerful is that these aren’t just type definitions - they’re live, reactive objects that sync automatically.

Is what twigged my AI radar too. LLM’s seem to really love that summarisation pattern of `{X is/isn’t just Y. Pithy concluding remark}`

Gravityloss•1h ago
Some problem on the site. Too much traffic?

    Secure Connection Failed
    An error occurred during a connection to bytemash.net. PR_END_OF_FILE_ERROR
    Error code: PR_END_OF_FILE_ERROR
jcusch•1h ago
It looks like I was missing a www subdomain CNAME for the underlying github pages site. I think it's fixed now.
Gravityloss•58m ago
I still see the same error
Gravityloss•12m ago
Ok, it works, problem was probably on my end.
mbaranturkmen•1h ago
How is this approach better than using react-query to persist storage which periodically sync the local storage and the server storage? Perhaps I am missing something.
petralithic•56m ago
That approach is precisely what the new TanStack DB does, which if you don't know already has the same creator as React Query. The former extends the latter's principles to syncing, via ElectricSQL, both organizations have a partnership with each other.
petralithic•58m ago
ElectricSQL and TanStack DB are great, but I wonder why they focus so much on local first for the web over other platforms, as in, I see mobile being the primary local first use case since you may not always have internet. In contrast, typically if you're using a web browser to any capacity, you'll have internet.

Also the former technologies are local first in theory but without conflict resolution they can break down easily. This has been from my experience making mobile apps that need to be local first, which led me to using CRDTs for that use case.

jitl•35m ago
Because building local first with web technologies is like infinity harder than building local first with native app toolkits.

Native app is installed and available offline by default. Website needs a bunch of weird shenanigans to use AppManifest or ServiceWorker which is more like a bunch of parts you can maybe use to build available offline.

Native apps can just… make files, read and write from files with whatever 30 year old C code, and the files will be there on your storage. Web you have to fuck around with IndexedDB (total pain in the ass), localStorage (completely insufficient for any serious scale, will drop concurrent writes), or OriginPrivateFileSystem. User needs to visit regularly (at least once a month?) or Apple will erase all the local browser state. You can use JavaScript or hit C code with a wrench until it builds for WASM w/ Emscripten, and even then struggle to make sync C deal with waiting on async web APIs.

Apple has offered CoreData + CloudKit since 2015, a completed first party solution for local apps that sync, no backend required. I’m not a Google enthusiast, maybe Firebase is their equivalent? Idk.

agos•4m ago
and if you didn't like or cared to learn CoreData? just jam a sqlite db in your application and read from it, it's just C. This was already working before Angular or even Backbone
incorrecthorse•51m ago
> For the uninitiated, Linear is a project management tool that feels impossibly fast. Click an issue, it opens instantly. Update a status and watch in a second browser, it updates almost as fast as the source. No loading states, no page refreshes - just instant, interactions.

How garbage the web has become for a low-latency click action being qualified as "impossibly fast". This is ridiculous.

jitl•48m ago
A web request to a data center even with a very fast backend server will struggle to beat 8ms (120hz display) or even 16ms (60hz display), the budget for next frame painting a navigation. You need to have the data local to the device and ideally already in memory to hit 8ms navigation.
ahofmann•32m ago
This is not the point, or other numbers matter more, then yours.

In 2005 we wrote entire games for browsers without any frontend framework (jQuery wasn't invented yet) and managed to generate responses in under 80 ms in PHP. Most users had their first bytes in 200 ms and it felt instant to them, because browsers are incredibly fast, when treated right.

So the Internet was indeed much faster then, as opposed to now. Just look at GitHub. They used to be fast. Now they rewrite their frontend in react and it feels sluggish and slow.

Zanfa•22m ago
> Now they rewrite their frontend in react and it feels sluggish and slow.

And decided to drop legacy features such as <a> tags and broke browser navigation in their new code viewer. Right click on a file to open in a new tab doesn’t work.

mkarliner•30m ago
Meteor was/is a very similar technology. And I did some fairly major projects with it.
mentalgear•23m ago
Meteor was amazing, I don't understand why it never got sustainable traction.
terencege•28m ago
I'm also building a local first editor and rolling my own CRDTs. There are enormous challenges to make it work. For example the storage size issue mentioned in the blog, I end up using with yjs' approach which only increase the clock for upsertion, and for deletion remove the content and only remain deleted item ids which can be efficiently compressed since most ids are continuous.
jddj•14m ago
In case you missed it and it's relevant, there was an automerge v3 announcement posted the other day here which claimed some nice compression numbers as well
mentalgear•27m ago
Local-First & Sync-Engines are the future. Here's a great filterable datatable overview of the local-first framework landscape: https://www.localfirst.fm/landscape

My favorite so far is Triplit.dev (which can also be combined with TanStack DB); 2 more I like to explore are PowerSync and NextGraph. Also, the recent LocalFirst Conf has some great videos, currently watching the NextGraph one (https://www.youtube.com/watch?v=gaadDmZWIzE).