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abdimoallim/vdb: A header-only C vector database library

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💥 Check out this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: A lightweight, header-only C library for storing and searching high-dimensional vector embeddings with optional multithreading support. Header-only implementation (single file: vdb.h) Multiple distance metrics (cosine, euclidean, dot product) Optional thread-safe operations via #define VDB_MULTITHREADED Save/load database to/from disk Custom memory allocators support No dependencies (except pthreads for multithreading) Python bindings (refer to vdb.py) /*test.c*/ #include "vdb.h" int main(void) { vdb_database *db = vdb_create(128, VDB_METRIC_COSINE); float embedding[128] = 🔥; vdb_add_vector(db, embedding, "vec1", NULL); float query[128] = { /* ... */ }; vdb_result_set *results = vdb_search(db,…

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CPNs, LLMs, and Distributed Applications

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💥 Read this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: CPNs, LLMs, and Distributed Applications A big theme in LLM-enabled software dev is that verifiable correctness makes it much easier to take bigger leaps with LLMs. E.g. tests, compilers, state machines, etc. While researching for databuild, I recently came across colored petri nets, and instantly saw opportunity. Colored petri nets (CPNs) are an extension of petri nets. Petri nets are essentially directed bipartite graphs where places can contain tokens, and places are connected by transitions (where the side effects happen). In petri nets, a single…

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You Can’t Trust the Internet Anymore

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🔥 Explore this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: This is a "byte" post. It may not be as detailed as other posts. I like things that are strange and a bit obscure. It’s a habit of mine, and a lot of this blog is to document things I haven’t heard of before, because I wanted to learn about them. I mean, jeez, I’m certainly not writing blog posts about strip mahjong because the people demand it. But I can’t stop seeing misinformation everywhere, and I have to say something. This post is just…

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News publishers limit Internet Archive access due to AI scraping concerns

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🔥 Read this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: As part of its mission to preserve the web, the Internet Archive operates crawlers that capture webpage snapshots. Many of these snapshots are accessible through its public-facing tool, the Wayback Machine. But as AI bots scavenge the web for training data to feed their models, the Internet Archive’s commitment to free information access has turned its digital library into a potential liability for some news publishers. When The Guardian took a look at who was trying to extract its content, access logs revealed that the…

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Geek-1001/arcmark: macOS bookmark manager that attaches to any browser window as a sidebar

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🔥 Discover this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Arcmark is a native macOS bookmark manager built with Swift and AppKit that attaches to any browser window as a sidebar. Inspired fully by how the tabs organization works in Arc browser's sidebar, so that the author could finally stop using this browser and try something else. arcmark-demo-video-1-720.mp4 Browser-Attached Sidebar - Float alongside any browser window (Chrome, Arc, Safari, Brave, etc.) for instant access to your bookmarks without switching apps. Workspace Organization - Organize bookmarks into multiple workspaces with custom window colors. Create nested folder…

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M Disc for archival durability. Tests and review.

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🚀 Read this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: The ProblemAnyone who wishes to archive material, be it images, documents, or videos, is faced with an almost unsolvable problem when one considers our over-reliance on new technology. Computer drives are predicted to have a life span of five years, flash cards even shorter. Magnetic creep, doping chemical migration in semi-conductors, failing physical parts, and other issues deny longtime archival on information in any real and reliable sense.Microscopists, like photographers, and film makers are interested in preserving recorded imagery. I'm also a film maker and…

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My smart sleep mask broadcasts users’ brainwaves to an open MQTT broker

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🚀 Read this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: 12 Feb, 2026 I recently got a smart sleep mask from Kickstarter. I was not expecting to end up with the ability to read strangers' brainwaves and send them electric impulses in their sleep. But here we are. The mask was from a small Chinese research company, very cool hardware -- EEG brain monitoring, electrical muscle stimulation around the eyes, vibration, heating, audio. The app was still rough around the edges though and the mask kept disconnecting, so I asked Claude to try reverse-engineer the…

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a place to find good blogs that interest you

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💥 Explore this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: 🥳 Four years old today! LIP SERVICE — Split Lip Magazine We’re a literary journal that’s totally bonkers-in-love with voice-driven writing, pop culture, and the kind of honesty that gets you right in the kidneys. 🇺🇸 More info Updated 4 days ago Now Playing: January 2026 Our January 2026 edition of Now Playing features love letters, a novella, and a limited series, all from our contributors!Lia HagenLately, I've been looking for queerness in women's letters. In a slim collection of love … By SLM, 377…

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How many registers does an x86-64 CPU have?

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🔥 Read this awesome post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: How many registers does an x86-64 CPU have? Programming, philosophy, pedaling. Nov 30, 2020     Tags: programming, x86     This post is at least a year old. x86 is back in the general programmer discourse, in part thanks to Apple’s M1 and Rosetta 2. As such, I figured I’d do yet another x86-64 post. Just like the last one, I’m going to cover a facet of the x86-64 ISA that sets it apart as unusually complex among modern ISAs: the number and diversity…

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Fix the iOS Keyboard

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🔥 Read this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Deadline: end of WWDC 2026. The exact dates haven't been announced yet and this timer is based on the estimated schedule (June 9–13). I'll update it when Apple confirms the dates. They have until the conference ends. The iOS keyboard has been broken since at least iOS 17 and it's somehow only gotten worse. iOS 26 has been my breaking point. Autocorrect is nearly useless and often hostile, that part I'm used to. But now the correctly tapped letters aren't even registering correctly. This isn't just…

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