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How I Use Every Claude Code Feature

How I Use Every Claude Code Feature

๐Ÿ’ฅ Check out this awesome post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ’ก Hereโ€™s what youโ€™ll learn: I use Claude Code. A lot.As a hobbyist, I run it in a VM several times a week on side projects, often with --dangerously-skip-permissions to vibe code whatever idea is on my mind. Professionally, part of my team builds the AI-IDE rules and tooling for our engineering team that consumes several billion tokens per month just for codegen.The CLI agent space is getting crowded and between Claude Code, Gemini CLI, Cursor, and Codex CLI, it feels like the real race is between Anthropic…
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Context engineering | Chris Loy

Context engineering | Chris Loy

๐Ÿš€ Read this awesome post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: โœ… Hereโ€™s what youโ€™ll learn: As our use of LLMs has changed from conversational chatbots and into integral decision-making components of complex systems, our inference approach must also evolve. The practice of "prompt engineering", in which precise wording is submitted to the LLM to elicit desired responses, has serious limitations. And so this is giving way to a more general practice of considering every token fed into the LLM in a way that is more dynamic, targeted, and deliberate. This expanded, more structured practice is what we now call…
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LM8560, the eternal chip from the 1980 years โ€“ Tyco’s Pages

LM8560, the eternal chip from the 1980 years โ€“ Tyco’s Pages

๐Ÿš€ Check out this insightful post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ’ก Hereโ€™s what youโ€™ll learn: Quick jumps to:โ€“ What digital alarm clocks before it were likeโ€“ Why is the LM8560 so costs effective? The trick, how it worksโ€“ Typical issuesโ€“ Its weak point is also its strengthโ€“ Its โ€œhiddenโ€ functionsโ€“ Some unwanted behaviorsโ€“ That evil beep beep!โ€“ Limitations of useโ€“ Make a quartz clock / DC supply clock with the LM8560โ€“ Operating modesโ€“ Its relatives and predecessorsโ€“ The Duplex display. A not versatile but clever solutionโ€“ Not the best chip for electronics hobbyistsโ€“ My alarm clocksโ€“ My first…
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Why do AI models use so many em-dashes?

๐Ÿ’ฅ Explore this trending post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ’ก Hereโ€™s what youโ€™ll learn: If you asked most people to name a defining feature of AI-generated writing, theyโ€™d probably say the em-dash โ€” like this. Language models use em-dashes so much that real humans who like em-dashes have stopped using them out of fear of being confused with AI. Itโ€™s also surprisingly hard to prompt models to avoid em-dashes: take this thread from the OpenAI forums where users share their unsuccessful attempts. Given all that, itโ€™s kind of weird that we donโ€™t really know why language models use…
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Notes by djb on using Fil-C (2025)

๐Ÿš€ Explore this trending post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: โœ… Key idea: I'm impressed with the level of compatibility of the new memory-safe C/C++ compiler Fil-C (filcc, fil++). Many libraries and applications that I've tried work under Fil-C without changes, and the exceptions haven't been hard to get working. I've started accumulating miscellaneous notes on this page regarding usage of Fil-C. My selfish objective here is to protect various machines that I manage by switching them over to code compiled with Fil-C, but maybe you'll find something useful here too. Timings below are from a mini-PC named phoenix…
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Yes you should understand backprop | by Andrej Karpathy

Yes you should understand backprop | by Andrej Karpathy

๐Ÿš€ Check out this trending post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: โœ… Hereโ€™s what youโ€™ll learn: When we offered CS231n (Deep Learning class) at Stanford, we intentionally designed the programming assignments to include explicit calculations involved in backpropagation on the lowest level. The students had to implement the forward and the backward pass of each layer in raw numpy. Inevitably, some students complained on the class message boards:โ€œWhy do we have to write the backward pass when frameworks in the real world, such as TensorFlow, compute them for you automatically?โ€This is seemingly a perfectly sensible appeal - if youโ€™re…
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Meta readies $25bn bond sale as soaring AI costs trigger stock sell-off

Meta readies $25bn bond sale as soaring AI costs trigger stock sell-off

๐Ÿ”ฅ Check out this insightful post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ“Œ Key idea: Unlock the Editorโ€™s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.Meta is planning to raise $25bn from a bond sale to help it pay for soaring artificial intelligence costs, even as the Big Tech groupโ€™s shares suffered one of their worst days ever over concerns that its spending is too high.The social media group had hired Citigroup and Morgan Stanley to raise up to $25bn in debt, ranging from five to 40 years in maturity, in what…
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(Quite) A Few Words About Async

(Quite) A Few Words About Async

๐Ÿš€ Explore this trending post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ’ก Main takeaway: Iโ€™ve had a few conversations about async code recently (and not so recently) and seen some code that seems to make wrong assumptions about async, so I figured out it was time to have a serious chat about async, what itโ€™s for, what it guarantees and what it doesnโ€™t. Most of the code in this entry will be written with Python syntax (and often Python libraries), but with a few minor exceptions, weโ€™ll be discussing concepts that are valid across languages. We all know about performance,…
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frostyplanet/crossfire-rs: A lockless mpmc/mpsc to support async base on crossbeam

frostyplanet/crossfire-rs: A lockless mpmc/mpsc to support async base on crossbeam

๐Ÿ’ฅ Read this trending post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: ๐Ÿ“Œ Main takeaway: High-performance lockless spsc/mpsc/mpmc channels. It supports async contexts, and communication between async and blocking contexts. The low level is based on crossbeam-queue. For the concept, please refer to the wiki. V1.0: Released in 2022.12 and used in production. V2.0: Released in 2025.6. Refactored the codebase and API by removing generic types from the ChannelShared type, which made it easier to code with. v2.1: Released in 2025.9. Removed the dependency on crossbeam-channel and implemented with a modified version of crossbeam-queue, which brings performance improvements for both async…
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Why โ€œEveryone Diesโ€ Gets AGI All Wrong

Why โ€œEveryone Diesโ€ Gets AGI All Wrong

๐Ÿš€ Explore this must-read post from Hacker News ๐Ÿ“– ๐Ÿ“‚ Category: โœ… Key idea: Being: A reaction to Eliezer Yudkowsky and Nate Soaresโ€™s book โ€œIf anybody builds it everyone diesโ€ which is getting a bit of media attentionIโ€™ve known Eliezer Yudkowsky since the late 1990s. In 2000, he visited my AI company Webmind Inc. in New York City, where we were explicitly trying to build AGI alongside various commercial applications. His mission? To convince us to maybe stop. Or, failing that, to get us thinking really hard about AGI safety and how to make the AGI good for everyone.While he…
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