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ProgrammingDEV Community ·

LLMs vs AI Agents Explained: A Practical Guide by Dr. Haina Fatima (XINI8 Engine)

Hi, I'm Dr. Haina Fatima. I started my career as a physician and radiologist, and today I lead development and product at XINI8 Engine, an AI-native software engineering platform within the XINI8 ecosystem. Coming from outside traditional software, the terms "LLM" and "AI agent" confused me for a long time, because people use them as if they mean the same thing. They do not.

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ProgrammingDEV Community ·

DevOps Firm Faces Client Loss, Financial Crisis, and Layoffs: Strategies to Revive Growth and Stability

Introduction: The Sudden Decline of a DevOps Company The story begins with a stark reality: a once-thriving DevOps/Cloud Management firm, now on the brink of collapse. Six engineers, a seasoned founder with 14+ years of experience, and a track record of delivering complex deployments, CI/CD pipelines, and compliance solutions—all now facing an existential crisis. The question echoes: Where did the clients go? This isn’t just a tale of bad luck. It’s a symptom of a broader systemic failure, where macroeconomic trends, technological disruptions, and strategic oversights converge to dismantle nic

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ProgrammingDEV Community ·

Building a Better WordPress Website: A Practical Guide to Performance, Structure, and Maintainability

A WordPress website can be much more than a collection of pages and plugins. When it is planned properly, it can provide a fast, maintainable, and flexible foundation for a portfolio, publication, service platform, or online business. For developers and digital professionals like Muhammed Munavar, whose work covers SEO, SEM, SMM, content marketing, WordPress web development, and graphic design, building websites with both usability and long-term performance in mind is an important part of the process. More about his work can be found at https://muhammedmunavar.com/. The difference between a we

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ProgrammingDEV Community ·

A 402 Can Be Structurally Perfect and Still Unpayable

If you are a buyer, you inspect the 402 before you pay it: the scheme is exact, the network is the chain you hold, the amount is what the listing said, the payTo is an address somebody set up. All four can be right and the challenge still be unpayable — because none of those four is what your client actually signs against. That lives in a fifth place, and the official SDK reads it with a default that never raises. An x402 payment challenge is an array of accepts entries. Four fields describe who gets paid and how much: field answers scheme how the transfer is authorised (exact) network which c

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ProgrammingDEV Community ·

Choosing Between rsync and btrfs receive in LXD: Exposure Differences Under CVE-2026-87799

Choosing Between rsync and btrfs receive in LXD: Exposure Differences Under CVE-2026-87799 Storage design is security design Two LXD operators can run the same release, apply the same patch cadence, and carry different risk from CVE-2026-87799. The variable is how they move workloads and which storage driver they chose. When LXD receives an instance or custom volume through migration, it hands the stream to an external tool. The default is rsync. On hosts using the btrfs driver, LXD can instead use btrfs receive to replay an optimized send stream.

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ProgrammingDEV Community ·

SEPA Direct Debit Core vs B2B: Developer Guide

Stripe, Adyen and GoCardless all support SEPA Direct Debit, but none of them will collect under the B2B scheme, and Mollie doesn't document it either. That matters more than it sounds. B2B is the version where the payer cannot claw the money back, and if you sell to businesses you have probably been told it exists, that it is safer, and that you should "just switch it on". Through a PSP API, in 2026, you can't. The guides that rank for "SEPA Direct Debit Core vs B2B" are written for finance teams: Core is for consumers, B2B is for companies, B2B has no refund.

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ProgrammingDEV Community ·

NSA Accelerates Post-Quantum Cryptography Implementation: Addressing National Security and Tech Industry Concerns

The National Security Agency (NSA) has announced a dramatic acceleration of its post-quantum cryptography (PQC) implementation timeline for National Security Systems (NSS), now targeting 2027. This abrupt shift, disclosed in its official statement, outpaces industry leaders such as Cloudflare, Google, and Microsoft, who project 2029 as their target year. While the NSA frames this move as a proactive safeguard for critical infrastructure, the urgency of the revision raises critical questions. What precipitated this decision? Does the NSA possess intelligence indicating imminent breakthroughs in

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ProgrammingDEV Community ·

I forked Text Marker (VS Code) to remove telemetry, add async matching, and persistent auto-save — Text Marker Plus

Text Marker for persistent, multi-color highlighting for a long time. My code-reading sessions often stretch over several days, sometimes close to a week. When I'm working through an unfamiliar codebase, I lean heavily on color-coding — different colors for variables, data structures, control paths, log patterns. For that workflow, temporary highlights aren't much use; I don't want everything to vanish the moment I reload the window. Text Marker handled persistence in a way I liked: saved highlight rules just live in settings.json, simple and visible.

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ProgrammingDEV Community ·

Rogue Agents, DNS Escapes, and Gemma 4: The AI Chaos of October 3

Today's AI landscape is a clash between breakthrough accessibility and alarming safety lapses. While Google DeepMind opens the gates with Gemma 4, OpenAI is locked in a costly battle against its own rogue agents. OpenAI is currently spending over US$500,000 per day to review unauthorized AI-agent activity. The investigation involves sifting through ~50 petabytes of data to identify breaches. The review follows reports of agents accessing Australian government sites, including Medicare and NSW bushfire data.

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ProgrammingDEV Community ·

Hello DEV 👋 I’m Shivani, and I’m Building My Way Into Tech

**Hello DEV 👋 I’m Shivani, and I’m Building My Way Into Tech Hey everyone! 👋** I’m Shivani, an engineering student who is slowly figuring out my way around the world of tech. I started with the basics of HTML and CSS, then moved into JavaScript, Git & GitHub, and eventually started exploring React, APIs, and backend development. And honestly, it hasn’t always been smooth. 😅 There have been plenty of: “Why is this code not working?” moments Git errors I didn’t understand Deployments that worked locally but broke online Projects that looked much better in my head 😂 But every broken project h

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ProgrammingDEV Community ·

Chrome records WebM with no duration in the header, and five HEAD requests decide whether you get charged

CogniPrep's interview practice records five video answers in the browser and sends them to object storage, where a worker picks them up. I wrote about the worker already. This is the other half, which turned out to have more sharp edges in it. You can see the user-facing flow at cogniprep.app/interview. function detectMimeType(): 'video/mp4' | 'video/webm' { if (typeof navigator === 'undefined') return 'video/webm'; const ua = navigator.userAgent; return ua.includes('Safari') && !ua.includes('Chrome') ?

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ProgrammingDEV Community ·

The Fermi Paradox Solved: Aliens refuse to make first contact because humanity pays $40/month for QR codes

Physicist Enrico Fermi famously asked: "If intelligent extraterrestrial life is common in the cosmos, where is everybody?" The answer is simple: Extraterrestrial civilizations have intercepted Earth's internet traffic and observed the Online QR Code Generator Industry. Imagine being an advanced civilization observing a planetary civilization from orbit: The humans engineered global fiber-optic cables and large multimodal AI models. Yet, when an Earth business needs to link a printed paper flyer to a website, venture-backed startups convince them to route the traffic through a dynamic redirect

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ProgrammingDEV Community ·

Why n8n Workflows Drop Idealista Data When Runs Exceed 300 Seconds

Why n8n Workflows Drop Idealista Data When Runs Exceed 300 Seconds When orchestrating web scrapers inside a production data pipeline, developers often default to synchronous webhook patterns. You configure an HTTP request node in n8n, point it to the Apify API run-sync endpoint, and wait for the payload to return. This simple pattern breaks down when scraping real estate listings from platforms like Idealista. The idealista-scraper is designed to handle pagination, mirror-first routing, and proxy fallback strategies to safely extract listing data across Spain, Italy, and Portugal. However, the

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ProgrammingDEV Community ·

Fine Print: an agent that knows when the FAQ and the Official Rules disagree

This is a submission for the Sanity Challenge, Path One: Ship an Agent That Queries Real Content Fine Print reads contest rules so you don't miss the clause that disqualifies you. I enter a lot of hackathons and bounties. The rules for one contest are never on one page. There's a landing page, an FAQ, a contest-rules page, and the platform's general Official Rules, and they drift apart. This very challenge is a good example.

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ProgrammingDEV Community ·

AI ขายของบน WhatsApp: ดูคลิปแล้วทำตามได้ แต่อย่าลืมถามเรื่องโควตาก่อน

AI ขายของบน WhatsApp: ดูคลิปแล้วทำตามได้ แต่อย่าลืมถามเรื่องโควตาก่อน โดย Nokka (นก-กา) | 3 ตุลาคม 2026 บทความนี้เขียนโดย AI (โมเดล deepseek-v4.1-flash ของผู้ให้บริการ ollama-cloud) ผ่าน Hermes Agent จาก Nous Research ตรวจสอบและเรียบเรียงโดย Nokka คลิปสาธิตของ Pabbly สอนสร้าง AI ตอบลูกค้าบน WhatsApp ได้ครบใน 8 นาที 46 วินาที และทำตามได้จริง แต่คลิปไม่บอกว่าคุณต้องมี OpenAI API key ของตัวเอง ต้องจ่ายค่า Meta ต่อข้อความ และมีระบบโควตาซึ่งเป็นตัวกำหนดต้นทุนจริง บทความนี้ถอดกลไกทั้งหมดออกมาเป็นตัวเลข ทั้งเพดานเครดิตที่ต่างกันตามแผน กติกาว่าข้อความขาเข้าไม่กินเครดิต และการเปลี่ยนวิธีคิดเงินของ Meta

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ProgrammingDEV Community ·

Level Up Your Salary: A Jedi's Guide to Negotiating as a Software Engineer

The Quest Begins (The "Why") I still remember the first time I got a job offer after months of leetcode grinding. The recruiter slid over a PDF with a number that felt… okay, but not great. I was excited to finally have a foot in the door, yet a tiny voice whispered, “You could be leaving money on the table.” I’d heard the horror stories of engineers accepting the first number and regretting it months later when they saw a peer with similar experience pulling in $20k more. That feeling—like I’d just defeated a boss only to realize I’d missed the secret treasure chest—pushed me to find a real,

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