HN Top 10 — November 09, 2026
Today’s Top 10 on Hacker News
1. Fun things to do with your VM/370 CE machine – Fun with big computers
⭐ 36 💬 2 👤 rbanffy 🔗 Discuss on HN
This article explains how to run and explore a VM/370 Community Edition mainframe, an open-source enhanced version of IBM’s VM/370 operating system. It covers the easiest setup using Docker or Podman, alternative ways to access a mainframe, and how to connect with a 3270 terminal emulator to log in and begin using the system.
2. Next-Concept Modeling: Fast, Parallel Coarse-to-Fine Text Generation
⭐ 109 💬 13 👤 theanonymousone 🔗 Discuss on HN
This post likely discusses a text-generation approach that predicts higher-level concepts instead of individual tokens, allowing a model to draft content in parallel and then refine it into fluent text. It suggests a faster alternative to standard autoregressive generation by using a coarse-to-fine modeling process.
3. KetchUp – Open-source SketchUp alternative built with Rust and WebGPU
⭐ 543 💬 161 👤 dcoulmbe 🔗 Discuss on HN
KetchUp, also called BenchUp, is a free open-source 3D modeling tool built in Rust for planning woodworking and furniture projects. It runs in a desktop browser using WebGPU or WebGL2 and can also be used as a native app on Windows, macOS, and Linux. Users can sketch shapes, add exact dimensions, organize components, save local projects, import SketchUp files, and export OBJ geometry.
4. Unlocking any car from X brand in most of the world
⭐ 413 💬 184 👤 infosecau 🔗 Discuss on HN
Researchers examined a major automaker’s connected car platform and found an exposed administrative tool accessible on the public internet. Its JavaScript bundle contained hardcoded API keys that allowed access to internal APIs with little or no authentication. These flaws could let an attacker look up customer accounts and potentially unlock vehicles using only a license plate or VIN.
5. Nvidia was in 1 in 11 startup rounds over $100M last year
⭐ 16 💬 8 👤 ghostfoxgod 🔗 Discuss on HN
Nvidia and its venture arm NVentures participated in 79 of the year’s 903 startup rounds of $100 million or more, making the chipmaker part of roughly one in eleven large raises. Nvidia alone appeared in 65 rounds, more than any other corporate investor and behind only Sequoia and Andreessen Horowitz among all investors. The data also shows corporate investors were present in 38% of these large rounds, with Nvidia far ahead of Salesforce and GV.
6. I’m not convinced the AI bubble exists
⭐ 344 💬 573 👤 matteoraso 🔗 Discuss on HN
The author argues that the widely assumed AI bubble is not inevitable, because much of the industry’s massive spending is one-time infrastructure investment rather than ongoing operating cost. Once data centers are built, AI services can be highly profitable, and the resulting debt may be manageable over time, making a collapse less certain than popular narratives suggest.
7. Declarative Dragging
⭐ 586 💬 76 👤 smusamashah 🔗 Discuss on HN
Declarative dragging is a model-driven approach to building drag-and-drop interfaces where developers specify the future states an element can reach, rather than manually coding geometry, feedback, and animation. The Dragology library implements this idea for web-based SVG interfaces, using speculative rendering to create smooth, composable interactions with less low-level work.
8. Psalm 7 release: PHP security&static analysis software
⭐ 39 💬 20 👤 danogentili 🔗 Discuss on HN
Psalm 7 is a major release of the PHP static analysis and security tool, making security taint analysis enabled by default and up to ten times faster through combined type checking, security analysis, and dead code detection. It adds deeper taint tracking for NoSQL, LLM prompt, and URL injection, a new purity model, graph-based dead code detection, template defaults, and support for PHP 8.5 and 8.6. The release also includes built-in framework plugins and daily updates to deliver features and fixes more quickly.
9. Chimera Vocal Synth
⭐ 244 💬 36 👤 nmstoker 🔗 Discuss on HN
Chimera is a vocal synthesizer that generates sounds by simulating airflow through a virtual throat, mouth, and nose. Users can shape the voice by moving the tongue, lips, or jaw, or by playing keys, with controls for pitch, breath, vocal fold tension, and vibrato. The project also visualizes the vocal tract, resonances, and vowel formants.
10. Outlook.com is rejecting email from domains without DMARC
⭐ 426 💬 302 👤 xmddmx 🔗 Discuss on HN
Microsoft’s Outlook.com, Hotmail, Live, and MSN mail services have begun rejecting some messages from domains that lack a DMARC record, even for low-volume senders. The issue can cause intermittent bounces without clear notice, making it easy to miss. Adding a single DMARC DNS TXT record, starting with v=DMARC1; p=none, can resolve the problem if SPF or DKIM is aligned with the From address.