Tech Tutorials

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Investment analysis by Ruslan Averin — originally published at averin.com . Meta Platforms has given back roughly 14% from its 2026 high, and the reason matters

Dev.to AI ⚡ AI Lesson 2h ago

what is realtime system ?

Imagine you're chatting with a friend on WhatsApp.You send a message. Within milliseconds, it appears on their screen. No refresh button No page reload No waiti

Dev.to AI 📐 ML Fundamentals ⚡ AI Lesson 2h ago

Why AI Technology Fails in Production: The Coordination Gap Explained

Originally published at twarx.com - read the full interactive version there. Last Updated: June 21, 2026 Most AI workflows are solving the wrong problem entirel

Dev.to AI 🧠 Large Language Models ⚡ AI Lesson 2h ago

Cut self-hosted LLM serving costs: quantise, batch, speculate

Originally published on AI Tech Connect . What you need to know Cost is a serving problem, not a model problem. The same open-weight model can cost 5–8x more to

Dev.to AI 🧠 Large Language Models ⚡ AI Lesson 2h ago

The 2026 get-hired skill stack for AI engineers

Originally published on AI Tech Connect . What you need to know The market is starved, not saturated. Per one 2026 analysis, there are around 1.6M open AI roles

Dev.to AI 📣 Digital Marketing & Growth ⚡ AI Lesson 2h ago

How I Turned One Blog Post Into a $1,134 Asset: The Growth Hacker's Playbook for Recurring Affiliate Income

Here's the thing: i spent my first year as an affiliate marketer chasing one-time payouts. Bad idea. I would pour hours into a review article, watch a small spi

Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 3h ago

Reconstructing the Table of Contents a PDF Forgot to Ship, So RAG Can Scope by Section

Enterprise Document Intelligence [Vol.1 #5septies] - When a PDF prints a contents page but exposes no outline, two ways to turn it back into structure, plus the

Medium · Programming 🔐 Cybersecurity ⚡ AI Lesson 3h ago

The CIA Triad: The Three Words Every Security Decision Comes Back To

I’ve taught cybersecurity to enough beginners now to know that the term “CIA Triad” sounds like it belongs in a spy movie, not a textbook… Continue reading on M

Medium · Programming ⚡ Algorithms & Data Structures ⚡ AI Lesson 3h ago

I Thought I Was Ready for the Interview — Then One Simple Math Question Destroyed Me

Most Developers Study Algorithms for Months. The Interview Question That Rejects Them Takes Only 10 Seconds. Continue reading on Javarevisited »

Medium · Programming 💻 AI-Assisted Coding ⚡ AI Lesson 3h ago

Stop Using lazy in Swift Until You Read This

The race condition the compiler will never warn you about. Continue reading on Medium »

Medium · Programming 🔧 Backend Engineering ⚡ AI Lesson 3h ago

Backend Interview Question: Why Offset Pagination Breaks in Production Systems (And How Top…

Pagination seems like a simple topic until you encounter it in a backend interview. Continue reading on Stackademic »

Medium · Programming ⚡ AI Lesson 3h ago

I Increased HikariCP to 200 Connections for Better Performance — Production Immediately Regretted…

We blamed Kubernetes. Then PostgreSQL. Then Java GC. The real culprit was hiding inside our connection pool. Continue reading on Medium »

Medium · Programming 🔐 Cybersecurity ⚡ AI Lesson 3h ago

Reconnaissance: Why the Best Hackers Look Before They Touch Anything

When new students start learning ethical hacking, almost all of them want to skip straight to the exciting part: running a scan, finding a… Continue reading on

Medium · AI 🤖 AI Agents & Automation ⚡ AI Lesson 3h ago

Building an Internal AI Copilot for Revenue Teams

Artificial intelligence is rapidly changing how businesses operate. While much of the conversation focuses on public AI tools and… Continue reading on Medium »

Medium · AI 🛠️ AI Tools & Apps ⚡ AI Lesson 3h ago

TOP 5 BEST AI TOOLS FOR STUDENTS IN 2026 (FREE & USEFUL)

In today’s fast-paced life, it is becoming quite difficult for students to balance their personal and academic lives. Along with studying… Continue reading on M

Medium · AI 🤖 AI Agents & Automation ⚡ AI Lesson 3h ago

Your Future Boss Might Not Be Human

Imagine arriving at work in 2035. Continue reading on Medium »

Dev.to AI 🧠 Large Language Models ⚡ AI Lesson 4h ago

Cisco AI Introduces FAPO: Pipeline-Aware Prompt Optimization With Step-Level Failure Attribution and Claude Code Orchestration

2026: The Dark Side of FAPO: Why Cisco's Latest AI Breakthrough Might Not Be So Bright The introduction of FAPO, a pipeline-aware prompt optimization system, ha

Dev.to AI 🧠 Large Language Models ⚡ AI Lesson 4h ago

How I Slashed LLM API Costs by 70% with Batching (No Magic)

A few months ago, I was building a feature to automatically categorize thousands of customer support tickets. The obvious approach? Use an LLM to read each tick

Dev.to AI 📣 Digital Marketing & Growth ⚡ AI Lesson 4h ago

KDP Niche Spotlight: Spiritual Awakening Books (Demand 58/100, Competition 45/100)

Spiritual Awakening Books scored 58/100 demand and 45/100 competition in nichedata.dev's KDP intelligence index. Mixed signal — worth deeper research before com

Dev.to AI 🤖 AI Agents & Automation ⚡ AI Lesson 4h ago

Before an Agent Pays, It Negotiates. Before It Negotiates, It Needs a Communication Channel.

In 2026, AI agents are active participants in commercial transactions. They negotiate prices, compare products across suppliers, execute purchases, and manage p

Dev.to AI 📣 Digital Marketing & Growth ⚡ AI Lesson 4h ago

I Tried 5 Affiliate Programs in 2026 — Here's What Actually Paid (Real Numbers Inside)

Pull up a chair. I'm doing the thing the build in public crowd loves and most people avoid: sharing my actual numbers. Every month I post a screenshot of my inc

Dev.to AI 🛠️ AI Tools & Apps ⚡ AI Lesson 4h ago

I Wish I'd Switched to DeepSeek Sooner — Here's the Full Breakdown

I Wish I'd Switched to DeepSeek Sooner — Here's the Full Breakdown Look, I'm gonna be honest with you. I spent the better part of 2024 and 2025 burning cash on

Dev.to AI ⚡ AI Lesson 4h ago

🌠 Astral Warp Archive — Multi‑Game HoYoverse Gacha Tracker

🚀 Inspiration Managing gacha pulls across multiple HoYoverse titles used to be chaos — spreadsheets, screenshots, and luck calculators everywhere. I wanted a u

Dev.to AI 📣 Digital Marketing & Growth ⚡ AI Lesson 4h ago

Under 20 Tactical Timer: what we learned building Random Tactical Timer

What changed today chore(analytics): refresh marketing snapshots from wiki-sync chore(play): refresh play_iap_catalog.json from IAP readback chore(analytics): r