Hacker News
Buzzy UCSD Math Readiness Report Failed to Mention Calculator Ban
My Thoughts on the Current State and Future Development of Bun
Article URL: https://github.com/oven-sh/bun/issues/27664
Comments URL: https://news.ycombinator.com/item?id=47204417
Points: 1
# Comments: 0
About memory pressure, lock contention, and Data-oriented Design
Article URL: https://mnt.io/articles/about-memory-pressure-lock-contention-and-data-oriented-design/
Comments URL: https://news.ycombinator.com/item?id=47204407
Points: 1
# Comments: 0
390TB video game archive being taken offline due to skyrocketing RAM, SSD
Show HN: ExamJungle – AI-driven exam simulators for IT certifications
Hi HN,
I’m building ExamJungle, an educational platform for IT certification prep (AWS, Azure, CompTIA, etc.).
Most existing resources are just static PDF dumps or basic quiz apps. We’re trying to build something more interactive by integrating "Caesar AI." It’s designed to do more than just give an answer key; it explains complex infrastructure concepts and can dynamically adjust question difficulty based on a user's weak points.
Key features: - Realistic timed environments that mimic the actual exam UI/UX. - Caesar AI for on-demand technical explanations. - Peer benchmarking and performance analytics to track readiness. - Mobile-responsive for studying on the go.
I’d love to get your feedback on the AI implementation and the overall UX of the practice paths.
Thanks!
Comments URL: https://news.ycombinator.com/item?id=47204398
Points: 1
# Comments: 0
Ask HN: Long-term recoverable digital vault without a master key?
I’m exploring a long-term encryption design where a master key is never stored — only reconstructed.
The goal is a vault that can be recovered 10+ years later without writing down or backing up any master password. The only dependency should be stable long-term human memory.
The approach:
Instead of storing a password, the final encryption key is derived from multiple personal answers in sequence using Argon2.
k0 = seed
k1 = Argon2(answer1, salt = k0)
k2 = Argon2(answer2, salt = k1)
...
kn = Argon2(answern, salt = kn-1)
Final key = kn.
Properties:
No concatenation of answers
No static master password
Each step depends strictly on the previous
Memory-hard derivation (Argon2 at every step)
Brute forcing cannot be parallelized across answers
The vault is structured as nested encrypted layers. Each layer contains the next question and the next encrypted payload. You must answer each question correctly to decrypt the next layer. The file never stores the master key — only encrypted guidance for reconstructing it.
There’s a working prototype. Deterministic reconstruction works as long as the answers and seed remain unchanged.
My open architectural question is about the root seed (k0).
Right now k0 is derived from the container hash. But it could be any deterministic reproducible value.
What would be a robust long-term root of trust for a system that must remain recoverable after 10+ years without storing secrets?
Constraints:
Must be reproducible
Must not depend on external services
Must not introduce a new single point of failure
Must remain stable over a decade
Is using a file hash reasonable? Should k0 be user-derived? Should it be fixed and public?
More fundamentally: is relying on long-term human memory as a cryptographic reconstruction mechanism inherently flawed?
I’d especially appreciate critique around entropy assumptions, threat models, and long-term survivability risks.
Comments URL: https://news.ycombinator.com/item?id=47204396
Points: 1
# Comments: 0
FYI ChatGPT Plus credit if you delete before term ends
I cancelled my subscription yesterday but it was going to last through March 11. Got my data export today so I just went ahead with deleting my account (figuring the next 10 days was a sunk cost).
I just got a pro-rated refund of $6.78 for the remainder of the term, so FYI if you want to stick it to them even more!
Comments URL: https://news.ycombinator.com/item?id=47204377
Points: 1
# Comments: 0
Show HN: External Threat Protection in GitHub Agentic Workflow
Article URL: https://safedep.io/safedep-mcp-in-github-agentic-workflow/
Comments URL: https://news.ycombinator.com/item?id=47204358
Points: 1
# Comments: 0
Show HN: The Dot
The Dot, a Political Game part of The Lowball.
Comments URL: https://news.ycombinator.com/item?id=47204340
Points: 1
# Comments: 0
Ask HN: Is there something like Google style guide for AI-only coded apps?
The Google style guide for C++/Java/Python are opinionated, hard fought, wise, and they elimate a large source of errors while minimizing harmful, unneded inconsistences. They picked a style that made great realistic use of the best cognition at the time.
The intent is still great, but now we should think about writing good general rules for building programs that are essentially all AI generated. What generic wisdom leads to flexible, auditable, composable and robust apps and systems?
Comments URL: https://news.ycombinator.com/item?id=47204331
Points: 1
# Comments: 1
Observability Theatre
Article URL: https://rnjn.in/articles/observability-theatre/
Comments URL: https://news.ycombinator.com/item?id=47204317
Points: 2
# Comments: 1
Google quantum-proofs HTTPS by squeezing 15kB of data into 700-byte space
Article URL: https://arstechnica.com/security/2026/02/google-is-using-clever-math-to-quantum-proof-https-certificates/
Comments URL: https://news.ycombinator.com/item?id=47204306
Points: 2
# Comments: 0
Prior to attacks CIA assessed Khamenei could be replaced by IRGC headliners
Ask HN: How do we solve the bot flooding problem without destroying anonymity?
AI posts are becoming indistinguishable from human posts, and we can see it here on HN. The conventional response by website operators is to put in progressively tighter verification systems to distinguish bots and humans, but that eventually leads to the end of anonymity.
This is not an anti-AI rant. If a future AI agent truly has high quality posts and wants to use the site normally, that's fine. I'm talking about spam campaigns with hundreds of new accounts. We need new solutions to this problem.
I'll start by proposing a solution that could work for HN and similar forums. Feel free to iterate on it or propose your different ideas in the comments. Here goes:
For logged-in users, instead of ranking posts and comments on the server-side, the server only delivers a chronological feed + the current logged-in user's voting history.
Using the chronological feed as the base, each of your past votes changes the ranking of your feed by a tiny bit, and that's calculated client-side. You're more likely to see posts and comments from users you've upvoted in the past at the top.
In short, this means a new account will see a completely chronological feed, while an established account will see a feed modified by only their own past votes.
The public feed for non-logged-in users would still be ranked by the server. No changes there.
So each user gets a fully personalized bubble when logged in, except it's not a bubble because n=1. And it's really easy to break out of the bubble by logging out.
Spam bots can post and vote all they want, but they won't change the core userbase's experience that much, because the bots will only have access to a chronological feed. It has no taste, which is accumulated over time, and therefore can't spam votes and replies on real conversations nearly as much.
Comments URL: https://news.ycombinator.com/item?id=47204278
Points: 3
# Comments: 1
Show HN: Building a Kotlin/Native build tool in Rust: Konvoy
Article URL: https://github.com/arncore/konvoy
Comments URL: https://news.ycombinator.com/item?id=47204273
Points: 1
# Comments: 1
Show HN: JamCrew – 868 tests, 91% coverage on a pre-revenue crew management SaaS
Article URL: https://jamcrew.io
Comments URL: https://news.ycombinator.com/item?id=47204267
Points: 1
# Comments: 1
Berkshire Hathaway 2025 Annual Report [pdf]
Article URL: https://berkshirehathaway.com/2025ar/2025ar.pdf
Comments URL: https://news.ycombinator.com/item?id=47204257
Points: 3
# Comments: 0
Roast My Code – AI that scores and roasts your codebase (open source)
Article URL: https://github.com/Rohan5commit/roast-my-code
Comments URL: https://news.ycombinator.com/item?id=47204245
Points: 2
# Comments: 1
Show HN: Agentic Workflows – 56 Ready-to-use Templates
Article URL: https://github.com/OneRose328/awesome-agentic-workflows
Comments URL: https://news.ycombinator.com/item?id=47204223
Points: 1
# Comments: 1
