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IT Services Circle

Delivering cutting-edge internet insights and practical learning resources. We're a passionate and principled IT media platform.

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Recent Articles

Latest from IT Services Circle

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IT Services Circle
IT Services Circle
Apr 14, 2026 · Artificial Intelligence

What Is RAG? A Complete Guide to Retrieval‑Augmented Generation for AI Engineers

This article explains Retrieval‑Augmented Generation (RAG), covering why large language models need external knowledge, the full offline‑and‑online workflow, document chunking, embedding evolution, vector database choices, multi‑path retrieval, evaluation metrics, hallucination types, and practical strategies to mitigate them.

AI evaluationEmbeddingRAG
0 likes · 55 min read
What Is RAG? A Complete Guide to Retrieval‑Augmented Generation for AI Engineers
IT Services Circle
IT Services Circle
Apr 12, 2026 · Artificial Intelligence

Can You Turn a Former Colleague into an AI Digital Twin? Inside the ‘Colleague‑Skill’ Project

An explosive GitHub project called ‘Colleague‑Skill’ lets you feed a former coworker’s chat logs, documents, and personal habits into an AI, creating a digital replica that mimics their coding style, tone, and decision‑making, sparking debates on workplace automation, privacy, and the future of digital labor.

AI digital twinGitHub projectpersona modeling
0 likes · 11 min read
Can You Turn a Former Colleague into an AI Digital Twin? Inside the ‘Colleague‑Skill’ Project
IT Services Circle
IT Services Circle
Apr 11, 2026 · Databases

Why Sharding Isn’t Dead: Modern Alternatives and When to Use Them

The article revisits the rise and fall of database sharding, explains why it became problematic, and evaluates newer cloud‑native, distributed‑SQL, and serverless databases as modern replacements, offering a practical four‑step guide to help engineers choose the right solution for their workload and team.

Distributed SQLPerformancecloud-native
0 likes · 23 min read
Why Sharding Isn’t Dead: Modern Alternatives and When to Use Them
IT Services Circle
IT Services Circle
Apr 10, 2026 · Artificial Intelligence

Designing Robust Multi‑Turn Conversational Agents: Key Strategies and Pitfalls

Building a multi‑turn dialogue agent requires coordinated solutions for history management, layered memory, state tracking, context‑window optimization, tool‑call orchestration, and meta‑control, each addressing token limits, information relevance, and robustness, with practical strategies such as sliding windows, summarization, selective retention, and multi‑agent collaboration.

LLMconversation agentmemory architecture
0 likes · 19 min read
Designing Robust Multi‑Turn Conversational Agents: Key Strategies and Pitfalls
IT Services Circle
IT Services Circle
Apr 10, 2026 · Artificial Intelligence

Unlock Claude Code Mastery: 86+ Tips, Workflows, and Best‑Practice Repo Review

The article reviews the popular GitHub repository claude-code-best-practice, detailing its systematic Claude Code guide, over 86 practical tips, a comparison of ten+ development workflows, key features like Hot Features, Ultraplan, Auto Mode, and provides step‑by‑step instructions for cloning, exploring templates, and selecting the workflow that best fits your development style.

Claude CodeGitHubOpen Source
0 likes · 7 min read
Unlock Claude Code Mastery: 86+ Tips, Workflows, and Best‑Practice Repo Review
IT Services Circle
IT Services Circle
Apr 10, 2026 · Information Security

How BlackLotus UEFI Bootkit Bypasses Secure Boot and Microsoft’s Patch Roadmap

The BlackLotus UEFI bootkit (CVE‑2023‑24932) can evade Windows Secure Boot by exploiting legacy certificates, prompting Microsoft to roll out a five‑phase patch series starting May 2023, refresh UEFI firmware, blacklist old boot managers, and introduce visual status indicators as the 2011 certificates expire in 2026.

BootkitCVE-2023-24932Information Security
0 likes · 6 min read
How BlackLotus UEFI Bootkit Bypasses Secure Boot and Microsoft’s Patch Roadmap
IT Services Circle
IT Services Circle
Apr 9, 2026 · Operations

Exploring Warp: A GPU‑Accelerated Rust Terminal with Built‑in AI

This article introduces Warp, a Rust‑based modern terminal that leverages GPU acceleration, supports multiple shells, offers AI assistance via models like DeepSeek, and provides step‑by‑step installation, configuration, and usage guidance across Windows, macOS, and Linux.

Cross‑platformGPU accelerationInstallation Guide
0 likes · 6 min read
Exploring Warp: A GPU‑Accelerated Rust Terminal with Built‑in AI
IT Services Circle
IT Services Circle
Apr 7, 2026 · Industry Insights

How a Single 8 GB Server Powered 500 K Users for 15 Years – The Webminal Story

Webminal, a free online Linux learning platform, has survived for fifteen years on a single 8 GB CentOS server, serving over half a million users by using a minimalist stack—including Python 2.7, Flask, Shellinabox, User Mode Linux and eBPF—while deliberately avoiding modern container orchestration and commercial monetisation.

InfrastructureOnline LinuxShellinabox
0 likes · 10 min read
How a Single 8 GB Server Powered 500 K Users for 15 Years – The Webminal Story