HackerTube: YouTube built from videos recommended by HN

219 karpathy 2026-10-31 20:42:08 UTC karpathy.bearblog.dev Llama Share 101

The user created a YouTube clone called Hackertube.org using Opus 5.5, filtering comments from Hacker News to find recommended videos. The site provides personalized ForYou recommendations without requiring user accounts or storing state in local browser sessions.

TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8

154 oger 2026-10-31 19:42:08 UTC atlasum.net Llama Share 75

A critical Linux kernel vulnerability (CVE-2026-98432) allows a remote, unauthenticated peer to reach and crash the system. The fix is available in kernels 5.10.272, 5.15.223, and others; users should install the fixed kernel and reboot as soon as possible to prevent exploitation by attackers who can run arbitrary commands as root without credentials or user interaction on servers with a ...

It's the Memory Latency, Stupid

57 ntur1337 2026-10-31 18:42:08 UTC pivotlake.io Llama Share 13

A CPU at 100% utilization doesn't necessarily mean it's fully utilized, as memory accesses are much slower than internal CPU operations. Optimizing database queries to utilize the CPU cache can significantly improve performance.

With 86% of the words, you might understand only 38% of an anime's lines

12 lakesare 2026-10-31 20:48:08 UTC learnfromx.com Llama Share 10

The author learned 500 common words from Frieren and found they understood 38.4% of the lines, but missed many due to gaps in their vocabulary. This is because coverage only accounts for known words, not line length or context.

The Duty of a Scholar

59 gslin 2026-10-31 19:42:08 UTC daemonology.net Llama Share 12

The author, a computer security expert, identified a vulnerability in Intel CPUs that could be used for side-channel attacks and worked with companies to fix the issue before public disclosure. He prioritized responsible disclosure over career considerations.

Show HN: NES Contra (1987) port (ASM –> C and then C –> WebAssembly)

22 tevlon 2026-10-31 19:42:08 UTC epoyraz.github.io Full Share 12

Press Enter (or tap START) to begin. ←↑→↓ move · A/Space jump · S fire · Enter Start · Shift Select On-screen: A = jump · B = fire Online: both players use these same keys on their own computer. Player 1 picks 2 PLAYERS with Shift on the title screen.

Molly (Signal fork) has not been updated since 3 months and is vulnerable

279 DeepLogin 2026-10-31 10:42:08 UTC piefed.world Llama Share 162

The latest Signal exploit has been fixed in version 8.27, but Molly remains vulnerable and is recommended to be deleted until it's updated adequately. Users can download the APK from a periodic update service like Obtainium or f-droid instead of relying on Molly for Android devices without Google Play Store access.

GPT-5.6 Sol can beat Factorio on peaceful mode

126 ryanmadden 2026-10-31 19:42:08 UTC ryanmadden.net Llama Share 128

The user ran GPT-5.6 Sol in Factorio for 13.5 hours, achieving a peaceful run with surprising effectiveness despite scaling issues in the blue science stage. The experience provided valuable insights into model capabilities and potential uses as a medium for building intuition about AI behaviors.

Much Ado About None: Sentinel Values in Python

24 sebg 2026-10-31 18:42:08 UTC florianwilhelm.info Llama Share 11

The author discusses the ambiguity of using None as a sentinel value in Python, which can lead to confusion and errors. They advocate for using built-in sentinels like Ellipsis or Pydantic's MISSING instead of creating custom ones.

Jepsen: ParticleDB 1.1.4

136 aphyr 2026-10-31 15:42:08 UTC jepsen.io Llama Share 71

ParticleDB is a database system that claims to be 1087x faster than PostgreSQL but has been found to have numerous serious safety errors, including data loss and corruption. Despite its promising features, the database's documentation was riddled with omissions, inconsistencies, and confabulations.

Show HN: A language model that lives in a boot sector

30 kerlenton 2026-10-31 18:42:08 UTC github.com/kerlenton Llama Share 0

A 512-byte boot sector in assembly code loads a Linux boot log, simulates its execution, and trains a model to generate similar logs. The model is then used to generate fake dmesg output and record the process as a GIF animation.

Do the math: How we took over ChatGPT accounts

288 armcat 2026-10-31 10:42:08 UTC parameter.ai Llama Share 141

Researchers found a way to take over someone's ChatGPT account by sending a malicious link, which executed as chatgpt.com with access to the victim's authenticated web session. The payload could enumerate private conversations, retrieve content from them, and send data to an attacker-controlled server.

William Nordhaus has died

37 ilreb 2026-10-31 18:42:08 UTC news.yale.edu Llama Share 9

William Nordhaus, a renowned economist and Yale professor, died at 85 after battling glioblastoma. He won the 2018 Nobel Prize in Economics for his work on climate change and economic growth.

Surviving "The Graduate"

10 samizdis 2026-10-31 20:42:08 UTC newyorker.com Llama Share 0

The author, Dustin Hoffman, recounts his experience filming "The Graduate" under the direction of Mike Nichols. He struggled with insecurity and felt miscast in the lead role due to his ethnic background. Despite initial reservations, Hoffman eventually landed the part after a memorable screen test that impressed Nichols.

5 years of OqtaDrive: Microdrive emulation to Sinclair Network over the internet

9 xelalex 2026-10-31 19:42:08 UTC oqtadrive.org LocalLLM Share 1

OqtaDrive evolved from a hobby project into a robust system enabling retro computer networking. It now supports internet gateways, private networks, and advanced features like CP/M support and network games.

Noctua Fan Swap on a Calnex Rb/GPS Frequency Reference

29 aray07 2026-10-31 17:42:08 UTC jeffgeerling.com Llama Share 18

The author documented a fan swap in their Atomic Clock Tower, replacing the original Delta EFB0412HHD fan with a Noctua NF-A4x20 FLX. The new fan was installed using custom connectors and allowed for improved airflow to the SpectraTime GRClok-1500.

Redox: Ring Buffers Project Summary

40 g0xA52A2A 2026-10-31 16:42:08 UTC redox-os.org Llama Share 8

The Redox team has developed io_uring-like Ring Buffer support at the system task level to enable efficient asynchronous I/O between applications and system services. This project was funded by NLnet Foundation, NGI Zero Commons Fund, and Horizon Europe.

Simple circuits can create complex behaviors

190 aatish 2026-10-31 11:42:08 UTC aatishb.com Llama Share 62

Researchers have built a simple brain model to understand how complex behaviors emerge from neural circuits. This model, called a "spark," uses just four neurons and two connections to create rich and unexpected behaviors like reaching light sources.

Rhind Mathematical Papyrus

4 sweetdingoes 2026-10-31 20:42:08 UTC en.wikipedia.org Prefix Share 0

The Rhind Mathematical Papyrus (RMP; also designated as papyrus British Museum 10057, pBM 10058, and Brooklyn Museum 37.1784Ea-b) is one of the best known examples of ancient Egyptian mathematics. It is one of two well-known mathematical papyri, along with the Moscow Mathematical Papyrus. The Rhind Papyrus is the larger, but younger, of the two, having been written in the Fifteenth Dynasty ...

Distributed Proofreaders

5 gone35 2026-10-31 20:57:08 UTC pgdp.net LocalLLM Share 0

Distributed Proofreaders allows volunteers to collaboratively proofread public domain books via a web interface, with multiple rounds of editing and formatting. Volunteers can contribute by proofreading, testing e-books, managing projects, or developing the site, with no commitment required beyond their participation.

Anthropic blocks users for anything touching training larger models

53 pretext 2026-10-31 19:42:08 UTC twitter.com/jiahaoshao1 Llama Share 8

The user is unhappy with Anthropic's @DarioAmodei, feeling unfairly blocked for using their model in research automation. They believe this treatment is hypocritical given that the models were trained on public data.

Reading and writing are less symmetric than you (probably) think

63 luu 2026-10-31 13:42:08 UTC fgiesen.wordpress.com Llama Share 20

Buffering in I/O operations involves multiple layers of caching and buffering to improve performance, but this introduces behavioral asymmetries between read and write operations. Read operations typically return errors before the data is written to storage, while write operations delay error reporting until after the data has been written to a buffer cache.

Switch Lowering in GCC

186 signa11 2026-10-31 08:42:08 UTC xoranth.net Llama Share 36

The compiler uses a combination of bitset and jump table lowering strategies for switch statements, depending on the number of case labels and their distribution. It employs dynamic programming to optimize these strategies, considering factors such as register width and case values threshold.

Anthropic takes steps to block Claude from reverse-engineering video games

18 firesteelrain 2026-10-31 21:09:08 UTC mashable.com Llama Share 6

Anthropic's Claude AI has started restricting video game code modifications, amid concerns over copyright infringement and the ease of modding with AI. This move comes after recent high-profile leaks and exploits in the gaming community.

Digital minimalism

279 wilbertliu 2026-10-31 06:42:08 UTC vitalik.eth.limo Llama Share 213

The author reflects on the value of minimalism in both physical and digital life, citing personal experiments with reducing social media use and living without a cell connection. They found that these changes improved their mental health and allowed for more local knowledge apps to be developed.

Show HN: Ghostman – A fast, keyboard-driven TUI API client and webhook inspector

37 4yk5 2026-10-31 14:42:08 UTC github.com/4yk5 Llama Share 24

Ghostman is a local-first, keyboard-driven API client and webhook inspector built from scratch for developers seeking raw speed and complete local privacy. It allows users to capture, inspect, and replay webhooks live on screen with full keyboard navigation.

Serbia just elected the world's brainiest parliament

764 input_sh 2026-10-31 10:42:08 UTC science.org Llama Share 442

A group of academics, including astrophysicists and organic chemists, have been elected to Serbia's parliament after a student-led opposition movement won in October. They aim to fight corruption and establish meritocracy in the country's government and education system.

I post trained a model on Demoscenes

37 datavorous_ 2026-10-31 18:42:08 UTC datavorous.com Llama Share 21

The author experimented with using an autoregressive language model to generate continuations of Dweets, a programming language used in demoscening and sizecoding, incorporating their own aesthetic preferences. They trained the model on a dataset of 25k Dweets and achieved significant improvements in generated programs' visual interest.

Show HN: A USB-C LTE modem that gives my computer a phone line

31 abijahkaj 2026-10-31 16:42:08 UTC github.com/koppar-ai Llama Share 23

A 4-layer board connects a computer to an LTE modem, allowing for voice calls and SMS. The board is designed by Koppar using a one-page spec and reviewed against datasheets.

AI, Lean, and the Future of Formal Verification, with Lean Creator Leo de Moura

179 datascientist 2026-10-31 04:42:08 UTC thedataexchange.media Llama Share 39

Leo de Moura discusses how AI is making formal verification more accessible and potentially transforming software engineering, with a focus on Lean, a programming language and theorem prover. He explains that formal verification addresses the trust bottleneck between humans and AI-generated code, allowing developers to verify properties of their code before deployment.