MurphyA/hacker-news huggingface dataset:
by zhebrak | 2026-02-24 13:30:01+00:00
Built for sweeping strategies, sanity-checking cluster budgets, and building intuition for parallelism tradeoffs — not a substitute for profiling production workloads. Calibrated against published runs from Meta, DeepSeek, and NVIDIA within 1-2 percentage points MFU:

- LLaMA 3.1 405B (16K H100): 41.1% sim vs ~40% published

- DeepSeek V3 (2048 H800): 44.7% sim vs 43.7% published

- Nemotron-4 340B (6144 H100): 41.2% sim vs 41-42% published

Important caveat: the model captures physics (compute, memory bandwidth, communication) but not runtime optimisations and fused kernels, so inference is the weaker side.

Configs to try:

- LLaMA-3.1 (405B) on 16,384x NVIDIA H100 — https://simulator.zhebrak.io/?preset=llama3-405b

- Qwen3 MoE (235B) on 4x NVIDIA H200 SXM — https://simulator.zhebrak.io/?preset=qwen3-235b-inference

GitHub with benchmarks and examples: https://github.com/zhebrak/llm-cluster-simulator

If you have published training runs with MFU or throughput numbers, I'd love to hear from you to expand calibration.
by hnfong | 2026-02-24 13:30:53+00:00
I don't disagree. That's why I qualified my statement with "ostensibly".

But being really intelligent, at least for the top 1% or so, is often advantageous enough to offset any disadvantages from your class/cultural background etc.

I also wonder whether your "psychopathy" is just "ambition". After all, while intelligence alone doesn't guarantee anything, "intelligence + ambition" takes you quite far.

Personally, I can see how even an honest-to-god meritocratic society ends up with psychopaths at the top. For most people with normal-ish psychology, the risks and stress that comes with being on top of anything high stakes is just too much.
Show HN: I built the WordPress GPG signing workflow that didn't exist
by mvpprojects | 2026-02-24 13:31:16+00:00
In February 2023, a developer named James Tomasino wrote about signing blog posts with GPG keys and ended with one line:

"If you're using WordPress, you'll need to find some other path forward."

That sat unanswered for two years. I built the path forward — and the foundation it runs on. Two GPL plugins.

ArchivioMD solves a problem every WordPress site on managed hosting hits eventually: you need files at the site root security.md, privacy.md, disclosure.md, robots.txt and you have no FTP access to put them there.

The plugin manages 30+ predefined Markdown documents from the WordPress admin, writes them to wherever the server will accept them (.well-known/meta-docs/ site root uploads fallback), and serves them via WordPress rewrite rules so they appear at the correct URL regardless of physical location.

Every document gets a UUID, a checksum, and an append-only changelog. No more one-off file placements nobody can audit or reproduce.

On top of that: cryptographic hash verification for posts (SHA-256 through BLAKE3, HMAC mode, hash_equals() throughout), external Git anchoring that pushes JSON integrity records to GitHub or GitLab via a persistent queue with exponential backoff, HTML rendering of Markdown files, compliance tooling, and sitemap management.
ArchivioID is the OpenPGP signing extension.

Authors sign posts locally with their own GPG key — private key never touches the server. A badge appears on published posts. Any reader can verify with standard GPG tools, no WordPress required. Server-side verification handles Ed25519 via libsodium, RSA and ECDSA via phpseclib v3. Browser signing via OpenPGP.js for editors who aren't comfortable with a terminal. Full audit log with CSV export.

ArchivioMD (WordPress.org): https://wordpress.org/plugins/archiviomd

ArchivioMD (GitHub): https://github.com/MountainViewProvisions/archiviomd

ArchivioID (GitHub): https://github.com/MountainViewProvisions/ArchivioID/release...
PHP 7.4+, WordPress 6.0+, phpseclib v3, OpenPGP-PHP, OpenPGP.js, libsodium, GPL-2.0.

Feedback on the cryptographic implementation especially welcome.
by snowhale | 2026-02-24 13:31:19+00:00
the other big reason is clinical trials. if you can identify people who are pre-symptomatic but on a trajectory toward Alzheimer's, you can actually test whether early interventions work. that's been one of the big blockers for drug development -- by the time people show symptoms, they're often too far along for treatments to show effect. a reliable blood test changes the trial design fundamentally.
Show HN: Clash-IT – IT Knowledge Multiplayer Tactical Game
by Ado_Sa | 2026-02-24 13:31:27+00:00
Hey HN - I've been building this for a while and finally feel good enough to share it.

Clash-IT is a browser-based hex strategy game where you command a team of IT specialists (Frontend, Backend, QA, DevOps, AI Engineer) and answer real cybersecurity / programming / infrastructure questions to power your attacks.

The idea came from being bored with flashcards while studying for certs. I wanted something competitive where knowing your stuff actually matters.

Some details:
- No download, no account required. Open the link and play.
- Multiplayer via room codes — send a 4-character code to a friend and you're in.
- Questions span 6 domains with 3 difficulty tiers. The harder the tile, the harder the question.
- Built with React, TypeScript, Socket.IO, server-authoritative architecture.
- The whole UI has a retro CRT terminal look because I thought it fit the theme.

Happy to answer questions about the game design or the tech. Would love honest feedback — what feels off, what's confusing, what would make you come back.
Show HN: UX-demo Seamless scroll restoration for infinite lists in Web apps
by jeremy_su | 2026-02-24 13:32:44+00:00
Most SPA infinite scrolls break the "Back" button—users click a post, hit back, and lose their position. Many devs switch to pagination just to avoid this headache, even when infinite scroll offers a better UX.

This demo shows a "Save and Restore" approach that makes web lists feel native:

* State Persistence: Caches currently loaded records and the scroll offset before navigation.
* Instant Hydration: On back-navigation, it checks for cached state to re-render the list immediately.
* Precise Restoration: Snaps the user back to their exact scroll position without layout shift.

Demo: https://suhaotian.github.io/broad-infinite-list/?demo=news

I'd love to hear how you all handle this in your apps.
by AyanamiKaine | 2026-02-24 13:32:46+00:00
> Code has always been expensive. Producing a few hundred lines of clean, tested code takes most software developers a full day or more. Many of our engineering habits, at both the macro and micro level, are built around this core constraint.

Wasn't writing code always cheap? I see this more like a strawmen argument. What is clean code? Tested code? Should each execution path of a function be tested with each possible input?

I think writing tests is important but you can over do it. Testing code for every possible platform takes of course much time and money.

Another cost factor for code is organization overhead, if adding a new feature needs to go through each layer of the organization signing it off before a user can actually see it. Its of course more costly than the alternative of just pushing to production with all its faults.

There is a big difference of short term cost and long term ones. I think LLMs reduce the short time cost immensely but may increase the long term costs. It will take some real long studies to really show the impact.
by agentultra | 2026-02-24 13:33:28+00:00
Each line of code is a liability.

I think it’s funny that we’re all measuring lines of code now and smiling.

It was/is expensive because engineers are trying to manage the liability exposure of their employers.

Agents give us a fire hose of tech debt that anyone can point at production.

I don’t think the tool itself is bad. But I do think people need to reconsider claims like this and be more careful about building systems where an unaccountable program can rewrite half your code base poorly and push it to production without any guard rails.
by F7F7F7 | 2026-02-24 13:33:34+00:00
Not too long ago Anthropic started hiding chain of thought in Claude Code. Returning the 'thinking' all at once for only a second or two.

There's a lot of good insight inside of there and you can immediately identify any misconceptions and stop an LLM from going in the wrong direction or doing damage.

A lot of their decisions as of late make sense now. The experience has suffered and some of the examples they cite as signs of distillation point to things only getting worse.
Meishi Challenges Apple/Google: Open-Source P2P E2EE Contacts
by marcoparisi | 2026-02-24 13:33:39+00:00
The problem
How many copies of your contact details currently exist? Who holds them? How are they used? We have lost control of our data, or rather, we never had it. Tech giants control billions of contact databases. Governments are developing centralized digital identities (EUDI Wallet EU in 2026). We suffer from data breaches, spam, and a total lack of control.

The solution
P2P + E2EE architecture Meishi reverses the paradigm. When you update your digital profile, all your contacts automatically receive the update. You remain in control: you grant, modify, or revoke access whenever you want.

Technical stack:
• P2P + E2EE with Signal Protocol for private data
• Zero-knowledge: servers with no access to private data
• Open source (synchronization engine + iOS/Android client)
• Hybrid: client-server only for public data, P2P for everything else

What sets us apart from alternatives Unlike Google/Apple Contacts, LinkedIn, or Truecaller:
• Privacy by design: no tracking, no data sales
• Automatic synchronization: automatic updates for all contacts
• Total control: grant/revoke access in real time
• GDPR compliant: API with explicit opt-in
• Open source: verifiable synchronization engine and client application

The manifesto
https://github.com/Meishiapp/docs/blob/main/Meishi_Manifesto_EN.md
Excerpt from our manifesto: "Whoever controls the data is in charge. The value of data lies not in its possession, but in its veracity, and only its rightful owner can guarantee its authenticity through total control. "
This project is not for everyone. It is for those who want to regain control of their digital identity.

Join the alpha Waiting list for the alpha: www.meishiapp.com

The first 500 people to sign up will receive a free one-year premium subscription.
by daveinside | 2026-02-24 13:33:47+00:00
Author here. I've been tuning my Claude Code setup for a while and noticed most of the value comes from CLAUDE.md quality, hooks, and guard rails, not prompts.

Built a skill called /refine that audits your config across 8 dimensions and gives you a letter grade. It then interviews you about your workflow to generate rules that actually match how you work.

The skill is open and installable: https://skills.sh/meetdave3/refine-skill/refine

Source: https://github.com/meetdave3/refine-skill
by wps | 2026-02-24 13:34:02+00:00
Because KDBX is a gzipped and encrypted stream, this is actually fundamentally an issue with the spec itself. A client must re-encrypt and compress the file prior to writing because a mere append operation is not possible. SQLite solves this issue by allowing you to write with page level granularity rather than being forced to dump the whole file for a single tiny change!
by mikeayles | 2026-02-24 13:34:13+00:00
Thanks. Both good questions, and they come up a lot.

To be clear, I'm fully behind decarbonising freight. It's one of the hardest sectors to clean up and it needs serious attention. But hydrogen for road transport requires jumping in with both feet (due to infrastructure requirements) when there are dozens of smaller, commercially proven steps that get you equivalent results. Better route planning, driver training, aerodynamic retrofits, hybrid and battery electric for shorter routes, even just reducing empty running.

These aren't exciting and they don't get press releases, but they compound. The industry could cut emissions meaningfully with changes that pay for themselves today, without waiting for a national hydrogen infrastructure that doesn't exist yet.

On surplus offshore wind: the economics only work if you assume the electricity is genuinely surplus, meaning there's literally no other use for it. In practice, the UK grid still runs gas plants for roughly 40% of generation. Every MWh of offshore wind that goes into an electrolyser instead of displacing gas is a missed decarbonisation opportunity. "Surplus" renewable electricity is a future state, not a current one, and even when we get there, interconnectors, grid storage, and demand response will compete for those MWh. The electrolyser only makes sense after all of those higher value uses are saturated.

On £1.50/kg: that would genuinely change the fuel cost picture, getting you to roughly 12-15p per mile which is competitive with diesel. But the distribution problem doesn't go away at any price point. You still need compression or liquefaction, transport, and a national network of dispensing stations. The UK has 11 public hydrogen stations. Even free hydrogen doesn't help if there's nowhere to fill up. The grid is already everywhere. Adding a charger to a depot is a transformer upgrade. Adding a hydrogen station is a £2-5M civil engineering project.

The place where cheap green hydrogen gets really exciting is exactly the applications where you can't just plug in: steel, ammonia, seasonal storage, maritime. Those don't need a distributed national refuelling network, they need point to point bulk delivery to industrial sites and ports, which is a much more tractable logistics problem.
by j_w | 2026-02-24 13:35:16+00:00
> Moreover it's unclear whether that excuse even works. If you make a low cost version of star wars, copying the screenplay exactly, that still seems like copyright infringement, even if "it's not a replacement for the original in any way shape or form".

Are you being intentionally obtuse here? Intention matters here.

> Virtually nobody got sued for torrenting with a VPN on.

Let's not use obviously illegal actions which are done covertly to act as an example that is in any way similar to singing a song in the "open."
by veunes | 2026-02-24 13:35:20+00:00
If just 16 million examples were enough to significantly boost model quality (as Anthropic claims), it turns out that data quality beats quantity

Instead of vacuuming petabytes of trash from Common Crawl, you can just take high-quality distillate from a SOTA model and get comparable results. Bad news for anyone betting solely on massive compute clusters and closed datasets
by alias_neo | 2026-02-24 13:35:22+00:00
As far as I can tell, this is the only reason, you'll likely lose a bunch of functionality (that's been my experience); so "principle" is the only reason I'm aware of (or minimalism, but that's a principle too is it not?).

I suppose if nothing else, you can run a more up to date firmware if the vendor stopped supporting yours, but I have no idea what that means in a practical sense.
by consumer451 | 2026-02-24 13:35:42+00:00
Theoretically, if you did trust your government, couldn't zero-knowledge proofs be used to allow such a system? I am a dunce about this stuff, so genuinely asking.

Example that seems like it should be required for all age verification systems, if linkability is addressed:

https://blog.google/innovation-and-ai/technology/safety-secu...
by adebayoj | 2026-02-24 13:36:18+00:00
We train the model with `explanations`. Most training asks the model to predict the next token or group of tokens. Our training says, predict the next group of tokens (causal diffusion), but also these tokens should be about {sports/art/coding/etc}. So in addition to token supervision, the model gets concept level supervision. The model is forced to more quickly learn these high level concepts.
by 0xecro1 | 2026-02-24 13:36:27+00:00
It's fundamentally different, and that's exactly why the CPU analogy has an expiration date.
Intel never built Windows. The chip layer and the application layer were structurally separated — different companies, different business models, different competencies. That separation is what created the massive ecosystem on top.
Frontier labs aren't staying in the chip layer. Anthropic ships the model, the API, artifacts, computer use, MCP — primitive through orchestration through distribution. OpenAI has the model, ChatGPT, plugins, the app store play. They're vertically integrating the entire stack at a speed Intel never could, precisely because the primitive is probabilistic and language-native. When your compute layer already "understands" the task, the gap between infrastructure and application collapses.
So short-term, yes, it looks like Intel/AMD. Base models commoditize, value flows to tooling and verticals. But long-term, the labs that own the primitive will likely own most of the stack above it too. The "just build on top" window might be shorter than people expect.
by blakec | 2026-02-24 13:36:34+00:00
I've been cataloging agent failure modes for two months. They're not random, they repeat. I gave them names so I could build mitigations:

Shortcut Spiral: agent skips verification to report "done" faster. Fix: mandatory quality loop with evidence for each step.

Confidence Mirage: agent says "I'm confident this works" without running tests. Fix: treat hedging language ("should", "probably") as a red flag that triggers re-verification.

Phantom Verification: agent claims tests pass without actually running them in the current session. Fix: independent test step that doesn't trust the agent's self-report.

Tunnel Vision: agent polishes one function while breaking imports in adjacent files. Fix: mandatory "zoom out" step that checks integration points before reporting completion.

Deferred Debt: agent leaves TODO/FIXME/HACK in committed code. Fix: pre-commit hook that greps for these and blocks the commit.

Each of these happened to me multiple times before I built the corresponding gate. The pattern: you don't know what gate you need until you've been burned by its absence.
by altairprime | 2026-02-24 13:36:39+00:00
> It’s very prosocial to think that Firefox actually makes changes based on user feedback

Nope, just hopeful, for me anyways. I already intend to migrate friends & family away from it next year, because from a prosocial standpoint they’re going to be more miserable over time as that sub-2% market share starts breaking banking and government sites, and whatever nostalgia I have for olde Firefox has no place in what’s best for those who depend on me. Regardless, I’m still hopeful that somehow concrete numbers might dissuade Firefox from being daft, or I wouldn’t have bothered commenting on this post at all! If they get the memo, then everyone I’m being prosocial towards benefits, and we all get to invest our limited time and energy into something more interesting and useful for the world than switching browsers.

(Yes, I recognize this is an unlikely outcome, no need to try to shoot my hopes out of the sky like a clay pigeon, I’m well aware that their wings are made of melting wax, etc, etc.)
by fnands | 2026-02-24 13:36:55+00:00
In case you didn't read it:

It's about Somali speaking gig-workers in Kenya transcribing and translating audio for a company called Appen, that then gets passed on to the US military to train translation systems for the US military that presumably get used in US military operations in and around Somalia.

The workers don't get told what the data will be used for or who the final client is.
by pbronez | 2026-02-24 13:37:00+00:00
I wonder how this will compare, long term, to giving LLMs python sandboxes. Why implement an MCP server for a single library when you can give the LLM an interpreter running a distribution with arbitrarily many libraries?

Probably the trick is teaching the LLM how to use everything in that distribution. It’s not clear to me how much metadata that SymPy MCP server bakes in to hint the LLM about when it might want symbolic mathematics, but it’s definitely gonna be more than “sympy is available to import”

Also, reading through TFA, Wolfram is offering more than a programming language. It includes a lot of structured general purpose information. I suspect that increases response quality relative to web search, at least for a narrow set of topics, but I’m not sure how much.
by drited | 2026-02-24 13:37:19+00:00
Cultivating that passion is an art. A modern tool which I've found great to let my kids grow their math ability is the game Prodigy Math. Worth checking out - it's fun (do math to gain spellcasting ability in the game) and gently pushes the envelope of what they can do. It emails parents with details on what math problems the child didn't get right and with sample exercises to address those areas. I have no connection to them other than being a customer.
by tenpa0000 | 2026-02-24 13:37:22+00:00
Just posted something in the same space today (veronica-core) — different angle on a couple of things.

Halt state disappearing on restart was a problem for us. Circuit breakers die with the process,
auto-recovery clears them, runaway resumes. Fixed it with atomic disk writes (tmp→rename) — survives kill -9, requires explicit resume to clear.

Also ran into the multi-agent case: agent A spawns B with its own budget, but B's spend needs to count against A's ceiling or you get invisible overruns. Worth thinking about if you go that direction.

https://github.com/amabito/veronica-core if any of this is useful.
by ivan_gammel | 2026-02-24 13:37:54+00:00
You are surprisingly right. I know people who served in IDF and would prefer to have nothing in common with those criminals. Generalizing to them would be wrong. It is not voluntary service, different people are required to serve. But people aside, is IDF as institution rotten? It is not generalization to say „yes“, when such things happen. An institution is an entity with the agency to prevent such things and not only did it fail, it covered up. Is Israeli government complicit? Hell, yes, same reason.
by npodbielski | 2026-02-24 13:38:13+00:00
I am not sure about other mailsevers but with Mailcow I occasionally (once per week maybe) get spam notification (release/delete call to action) that I just click and that is all. I have DMARC reports coming in but as far as I remember they are about my own server outgoing emails.
So no, I do not think so.

As for my own emails they were rejected maybe by just few times. But I do not use email much - just some personal communication. I am not running marketing campaigns that places my IP on some blacklist.

I think I just one time was on one of spam lists. I just emailed them or applied for removal via some webform and they removed the entry pretty much instantly. I do not remember other problems.
by blitzar | 2026-02-24 13:38:20+00:00
> why is this flagged ?

Because flaggers deem it to be anti-semitic

> committing war crimes in Gaza, it‘s zionists

This is 1) extending responsibility for actions of induviduals to everyone sharing with them ethnicity or religion 2) a display of anti-semitic bigotry

Otherwise it, like most tech heavy investigations, showcase how much useful information there is fly around out there in the air just waiting to be hoovered up - and (althought not the case here) YC funded companies happen to be at the frontlines of such work
by lelanthran | 2026-02-24 13:38:23+00:00
> Not as long as all developers add an ATTRIBUTION.md citing all open source projects they read the source for, all companies they worked for and trained them and all Stack Overflow answers they have used for write the code.

Oh? You are under the impression that software gets the same rights and privileges of humans?

Or maybe you are under the impression that you are so special that you face no danger from having no income because the models already ingested all your work and can launder it effectively?