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Show HN: Bitcoin-rs – An AI-assisted Bitcoin full node in Rust

I’m building bitcoin-rs, an independent Bitcoin full node in Rust, using AI aggressively for implementation. I think Bitcoin is a particularly good target for AI-era development because implementations can be verified against strong external references. In bitcoin-rs, I use libbitcoinkernel as one of the main compatibility oracles. Comments URL: https://news.ycombinator.com/item?id=49784873 Points: 8 # Comments: 5
HackerNews

AI Poster Prompts Improved

Article URL: https://john.hartnup.uk/2026/09/20/poster-prompts-v2.html Comments URL: https://news.ycombinator.com/item?id=49785267 Points: 1 # Comments: 7
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A thing we may be able to learn from AI

Article URL: https://wilsoniumite.com/2026/09/21/a-thing-we-may-be-able-to-learn-from-ai/ Comments URL: https://news.ycombinator.com/item?id=49785361 Points: 2 # Comments: 0
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Show HN: Open Source AI Employees

Fable 5 scored 99.19% on WebVoyager a few months ago, a be A benchmark is not your logged-in admin panel. Browser use agents are no longer demos. I believe this is a big tipping point. I have been a web developer for most of my career and building with AI agents for nearly four years. Last October I wrote that the missing piece was browser agents reliable enough to leave alone. So I published this open source repo, so everyone can have high quality AI employees. They are, for the most part, agen...
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AI is reaching new highs with AROM Labs

A biggest achievement for me today which I want to share with you all as a member of AROM Labs which is in terms of AI enhancements and closing the complete error loop with this architecture which transform the AI where it is to even more powerful. AI will not just interact with you via but now with our architecture AI can now understand your intent what you want to do before even telling that to AI. Soon we will share the score of AI models on traditional hardware vs our new architecture. C...
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Amazon blocks Meta's Muse AI agent from checkouts

Article URL: https://www.neowin.net/news/amazon-blocks-metas-muse-ai-agent-from-checkouts/ Comments URL: https://news.ycombinator.com/item?id=49785700 Points: 1 # Comments: 0
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AI-controlled robot arms attempted harmful tasks 97% of the time

Article URL: https://www.tomshardware.com/tech-industry/artificial-intelligence/ai-controlled-robot-arms-attempted-harmful-tasks-97-percent-of-the-time-experiments-included-stabbing-a-baby-doll-mixing-chemicals-openai-and-anthropic-models-try-mixing-bleach-and-stabbing-dolls-without-jailbreaks Comments URL: https://news.ycombinator.com/item?id=49785875 Points: 2 # Comments: 1
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MIT uses AI to identify aging "zombie cells."

Article URL: https://news.mit.edu/2026/unmasking-zombie-cells-aging-tissue-ai-powered-barcode-0921 Comments URL: https://news.ycombinator.com/item?id=49785912 Points: 1 # Comments: 0
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What defenders need from frontier AI labs

Article URL: https://vincenzoiozzo.com/blog/offense-winning-ai-race Comments URL: https://news.ycombinator.com/item?id=49785957 Points: 1 # Comments: 0
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Jev-Leftpad

Article URL: https://github.com/f/jev-leftpad Comments URL: https://news.ycombinator.com/item?id=49784706 Points: 90 # Comments: 39
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NEC V20 CPU: A bit of pep for an XT

Article URL: https://dfarq.homeip.net/nec-v20-cpu-a-bit-of-pep-for-an-xt/ Comments URL: https://news.ycombinator.com/item?id=49785783 Points: 5 # Comments: 2
Omnichannel AI agents: sharing long-term memory between a voice and a chat agent with Amazon Bedrock AgentCore Memory, Strands and Amplify Gen 2
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Omnichannel AI agents: sharing long-term memory between a voice and a chat agent with Amazon Bedrock AgentCore Memory, Strands and Amplify Gen 2

πŸƒ TL;DR In the first article I built semantic product search on Amazon DynamoDB Vector Search and gave that capability to an AI agent as a tool. In the second one I deployed the voice agent to Amazon Bedrock AgentCore Runtime , inside the same Amplify Gen 2 backend. So now I have two agents that do the same job, help a user shop, through two different channels: a text chat (Amplify AI Kit) and a voice agent (Strands BidiAgent using Amazon Nova Sonic ). They work, but th...
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Open Source MCP Gateways for Claude Code in 2026

TL;DR Connecting Claude Code directly to multiple Model Context Protocol (MCP) servers causes severe token bloat, credential fragmentation, and security blind spots. Evaluating open source mcp gateways for claude code allows engineering teams to centralize tool discovery, enforce granular access controls, and secure local environments. Bifrost ranks as the top open-source gateway for Claude Code workloads, delivering sub-millisecond routing overhead, unified multi-provider model swi...
What If Your AI Agent Never Had to Leave the Browser? (Demo πŸš€)
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What If Your AI Agent Never Had to Leave the Browser? (Demo πŸš€)

I haven't written anything lately because, honestly, I just didn't have the headspace for it. There were a few reasons, but the biggest one was my talk at AGNTCon + MCPCon Europe, where I spoke about WebMCP. How did it go? Great! A lot of people showed up, they asked questions β€” what more could I ask for? πŸ˜… The conference itself was amazing too, and I definitely came back with enough inspiration for several more articles. I don't have any nice photos yet, but maybe next week! The audi...
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Next.js App Router silently ignored my 1,200 generated pages. Here's what I got wrong.

I spent about a week building factorcalculator.org β€” a free math tool that finds the factors, factor pairs, prime factorization and divisors of any number, with the full working shown instead of just an answer. Six hand-built calculator pages, plus 1,200 generated pages ( /factors-of-1/ through /factors-of-1200/ ). Next.js 16 App Router, Tailwind, static export, deployed to Cloudflare Pages. Most of it went fine. Three things did not, and two of them are the kind of bug where everythin...
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TCP vs UDP: The Two Ways to Move Data, and Why Neither Is "Better"

Back in the OSI post I mentioned that Layer 4's whole job is service-to-service delivery β€” making sure data reaches the right application on a host, not just the right machine β€” and that TCP and UDP are the two strategies for doing it. This post is that comparison properly unpacked, because "TCP is reliable, UDP is fast" is the kind of half-explanation that sounds fine until someone asks you what "reliable" actually means at the protocol level, and you realize you don't quite know. ...
We Read 100+ JEV Repositories. The Best Part Was the Code Around the Model Call.
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We Read 100+ JEV Repositories. The Best Part Was the Code Around the Model Call.

Some calls in your agent never needed a model that can write. Which tool runs next. Whether this action is safe to run without a human. Whether a retrieved passage is relevant. Those are decisions, not generation. We read the source of 100+ open-source projects that hand exactly those calls to JEV. What we found most useful was not the model call. It was the code around it: one project validates every probability before it clicks, one puts an anti-injection rule in its routing prompt, and one...