DEV Community • 2026-08-15 09:09

Mastering Turn-Taking in Group Chat: How Two Characters Share One Thread

Mastering Turn-Taking in Group Chat: How Two Characters Share One Thread Building a seamless group chat experience where two characters share a single thread can be surprisingly tricky. While one-on-one conversations with AI are relatively straightforward, introducing a second AI persona into the same chat thread raises a fundamental question: when a user speaks, who answers? We recent...

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DEV Community • 2026-08-15 09:07

别再手写图表了！用AI轻松搞定数据可视化

图表不会画？跟AI说句话就行 写代码画图这件事，劝退过不少人。编辑器打开了，文件是空的，脑子里想的是"画个折线图"，手却不知道往哪放。查文档、调参数、处理日期格式、挪图例……折腾半小时，数据还没理清楚。我太懂了，因为我自己就是这么过来的。 现在情况不一样了。ChatGPT、Claude、Copilot，随便挑一个，你跟它说"我想看什么样的图表"，它就把代码给你写好了，而且一次跑通的概率不低。这不是什么科幻设定，我天天这么干活。 AI到底在干嘛？ 说白了，AI不负责画图，它负责把你想画的东西翻译成代码。你说人话，它出Python、R或者JavaScript，然后你的数据就变成图了。常用的搭配大概是这些： Python配Matplotlib或Seaborn，做静态图、论文插图，稳 Python配Plotly，要交互、能缩放能悬停的那种 R配g...

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DEV Community • 2026-08-15 09:01

Why Trend-Data Scrapers Silently Fail (And How I Fixed It)

You start a Google Trends scrape. It runs for twenty minutes. It comes back with nothing. You already paid for it. That's not a one-off bug, it's the most common complaint on scrapers in this category, across the board. Not "wrong data," not "missing feature." Just: ran, cost money, returned nothing. I wanted to understand why that keeps happening, and whether it's actually fixable. It'...

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DEV Community • 2026-08-15 08:55

Context Engineering and Harness Engineering: Building Reliable AI Agents Beyond Prompts

Prompt engineering tells the model what to do. Context engineering gives it the right information. Harness engineering builds the system that helps it act, verify, and recover. When developers first started building applications with LLMs, much of the work revolved around prompts: improve the instructions, add a few examples, adjust wording, and hope the model behaves better. That approach works...

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Lobsters • 2026-08-15 08:53

nixpkgs-multiverse: fast mode

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DEV Community • 2026-08-15 08:51

Building Bhasha Academy: A Multi-Agent Hinglish Voice Tutor with Murf Falcon & LiveKit

Building Bhasha Academy: An AI Voice Tutor for English and Math Language is meant to be spoken, not just read. For millions of students and job seekers in India, being confident in English and basic math can open the door to better career opportunities. But many learners don't have access to a personal tutor. Even when they do, the fear of making mistakes in front of someone can make p...

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DEV Community • 2026-08-15 08:48

React useInterval Hook: setInterval Without Stale Closures (2026)

Every React developer writes this component once, and it never does what they expect: function Counter() { const [count, setCount] = useState(0); useEffect(() => { const id = setInterval(() => setCount(count + 1), 1000); return () => clearInterval(id); }, []); return <h1>{count}</h1>; } It goes 0, 1… and stays at 1 forever. The interval callback was ...

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DEV Community • 2026-08-15 08:45

How to Run Local LLMs with Open WebUI on Docker (Ditch the 0/mo AI Subscriptions)

How to Run Local LLMs and Open WebUI on a Cloud VPS (Goodbye $20/mo ChatGPT Plus) Originally published on SelfHostStack If you pay $20/month for ChatGPT Plus or Claude Pro, you are paying $240 every single year for: Rate limits during peak working hours. Cloud providers retaining your confidential code and business prompts for model training. Zero control over when models get depreca...

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DEV Community • 2026-08-15 08:42

Does React Break HTML Rules? Let's Find Out

Can React create HTML that the browser itself wouldn't allow? Sounds wrong, right? That's what I thought too. But while experimenting with React, I noticed something weird. So instead of guessing what's happening, let's break some HTML and see where it takes us. And before looking at the results, try to guess what will happen yourself. Let's Break Some HTML Take this: <p> ...

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DEV Community • 2026-08-15 08:41

How I Built a Multi-Tenant RAG Knowledge Base with Source-Cited Answers — Pipeline, Multi-Tenancy, and Lessons

Every "build a RAG chatbot" tutorial ends the same way: embed a few paragraphs, call similaritySearch, print the answer. That gets you a demo, not a product. The gap between a RAG demo and a RAG product you'd trust with a company's documents is where all the real engineering lives. I built KnowBase AI, a multi-tenant SaaS knowledge base where businesses upload documents and an AI assistant answer...

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DEV Community • 2026-08-15 08:40

Building AgriAlert: A Proactive Marathi AI Voice Assistant for Indian Farmers

🌾 1. The Mission: Voice AI for the Backbone of Bharat In rural Maharashtra, timely access to agricultural insights can make or break a harvest. Sudden unseasonal rainfall, fast-spreading crop diseases, and fluctuating Mandi prices directly impact a farmer's livelihood. While modern digital tools exist, digital literacy and complex smartphone UIs often stand in the way. To bridge this divide, I sp...

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DEV Community • 2026-08-15 08:39

Integrating with Poland's KSeF: five things that aren't in the docs

Poland switched to mandatory structured e-invoicing this year. Since 1 February 2026 for the largest companies, since 1 April 2026 for all active VAT payers, and from 1 January 2027 for everyone else, including the smallest and VAT-exempt. The system is called KSeF (Krajowy System e-Faktur). You send an invoice as XML in a schema called FA(3), it validates it, assigns it a number, and returns a s...

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SAP Commerce Cloud CVE-2026-58231 Targeted in Exploitation Attempts Days After Patch
The Hacker News • 2026-08-15 08:38

SAP Commerce Cloud CVE-2026-58231 Targeted in Exploitation Attempts Days After Patch

A maximum-severity security vulnerability impacting SAP Commerce Cloud is witnessing active exploitation efforts. The vulnerability, tracked as CVE-2026-58231, is rated 10.0 on the CVSS scoring system. It relates to an instance of insufficient authorization checks and input validation. "SAP Commerce Cloud allows an unauthenticated attacker to abuse a default authentication client and submit

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DEV Community • 2026-08-15 08:27

What Google did with a brand new site in its first 24 hours

We put a new site online with no backlinks, no audience and no history. Sixteen pages, a sitemap, and a Google Search Console property connected the same afternoon. Then we recorded what Google said about every page, the first morning and the next. That record is the only reason this article exists. Search Console answers the question for today and keeps nothing, so the day-one state of a site is...

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DEV Community • 2026-08-15 08:18

The Other Sean Byrne Doesn't Exist: A Case Study in Digital Identity Ghosts

The Other Sean Byrne Doesn't Exist It started with a simple Slack message. "Hey Sean, did you get my PR review request?" Sean Byrne, a senior backend engineer at a mid-sized fintech startup, checked his notifications. Nothing. The sender followed up with a screenshot: a GitHub profile with the same name, same avatar style, same bio—except the contributions graph was suspiciously pristi...

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Hacker News • 2026-08-15 08:17

Show HN: HN Without AI Stories

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DEV Community • 2026-08-15 08:17

My Journey at Gen AI Academy APAC Edition: Building the Future with AI & Hardware

I'm halfway through Gen AI Academy's APAC Edition, and honestly? It's been the kind of experience that makes you realize how much you don't know — and how excited you should be about that. The Setup Coming in as a Cybersecurity & Computer Science Engineering student, I thought I had a decent grasp on AI. I was wrong in the best way possible. The academy isn't just about theory — it's about bu...

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DEV Community • 2026-08-15 08:11

The Writing Problem That Wasn’t Really a Writing Problem

ThoughtForm started out as a writing tool. I'm the type of person who struggles to get my ideas out onto a blank page. I know what I want to write about, I know what I want to say, I've built 99% of the argument in my head. But I stare at the computer screen and nothing comes out. I don't seem to have this problem talking about my ideas, so why is writing about them so hard? I think it's because...

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DEV Community • 2026-08-15 08:11

Portfolio Website Architecture for Dummies

This website serves two purposes: It's where I write about how I think. It's where I showcase what I build. Soon, I'll be releasing my first demo product: ThoughtForm. ThoughtForm is a conversational thinking workspace where an AI assistant helps you explore, organise and articulate what you think or feel. Through focused questions, examples, clarification, challenge and alternative perspecti...

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Hacker News: Front Page • 2026-08-15 08:11

Jason Arday, professor at centre of Cambridge plagiarism row, found dead

Article URL: https://www.theguardian.com/uk-news/2026/aug/14/jason-arday-found-dead-after-resigning-from-cambridge-over-plagiarism-claims Comments URL: https://news.ycombinator.com/item?id=49308748 Points: 5 # Comments: 0

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