🔰 Stage 1: Foundations of Networking ✅ Concepts: What is a network (LAN, WAN, WLAN, internet) Packet-switched vs. circuit-switched networks Basic networking terminology ✅ Topics to Study: OSI & TCP/IP Models 7-layer OSI model: physical to application TCP/IP 4-layer model IP Addressing & Subnetting IPv4 vs IPv6 Public vs private IP CIDR, subnet masks MAC … Continue reading Systematic Learning Outline: Networking & Communication in Modern Devices
Make a Simple Claude Code AI Tool Myself
It all started with a 2022 paper titled ReAct: Synergizing Reasoning and Acting in Language Models. This work laid the foundation for a powerful paradigm in AI agent design—one that doesn’t just generate answers, but actively thinks, acts, and observes step by step. The core loop is simple but transformative: a language model first produces … Continue reading Make a Simple Claude Code AI Tool Myself
Stablecoins: Bridging Crypto Volatility with Dollar Stability
Stablecoins aim to connect the volatile world of cryptocurrencies with the stability of the U.S. dollar. What are they? In simple terms, a stablecoin is a digital token on the blockchain designed to maintain a consistent value, typically pegged 1:1 to a stable asset like the dollar. This makes stablecoins predictable and practical for everyday … Continue reading Stablecoins: Bridging Crypto Volatility with Dollar Stability
Essence of Selling
The essence of selling is not tricking or persuading — it's about providing a service or product that others find useful, built on a foundation of trust. Ideally, the product you’re offering is something you’ve created yourself, based on your own expertise. That makes it authentic. You need to have publicity, keep showing up. Keep … Continue reading Essence of Selling
Power in Gentleness and Calmness
Being right does not give you the license to be harsh. Many people believe that truth, authority, or moral ground justifies forceful speech or action. But in reality, the more you try to enforce, the more people resist — even when you are right. Humans naturally push back when they feel pressured, judged, or overpowered. … Continue reading Power in Gentleness and Calmness
Use Claude Code by Its Manual
Why engineers love Claude Code, it adheres to the Unix philosophy: Claude Code is composable and scriptable. tail -f app.log | claude -p "Slack me if you see any anomalies appear in this log stream" works. Your CI can run claude -p "If there are new text strings, translate them into French and raise a PR for @lang-fr-team … Continue reading Use Claude Code by Its Manual
Real Knowledge Shows in Actions
If you truly understand something, doing it isn’t hard. There’s no procrastination, no mental struggle — just the urge to act. When you really get it, action follows naturally. That’s what real knowing looks like. On the other hand, if you hear something that sounds right, and you nod in agreement, but hesitate when it’s … Continue reading Real Knowledge Shows in Actions
Life-long Learning – Alone but Never Lonely
There’s a paradox I’ve lived with for years: I’ve always identified as a lifelong learner, yet I’ve often been labeled as a loner, a lone wolf, even anti-social. On the surface, I understand why — I spend hours immersed in books, deep in thought, exploring abstract ideas. I may not always join every social gathering … Continue reading Life-long Learning – Alone but Never Lonely
AI Coding Tools Shifting from IDE to Terminal
AI can now not only help write code, but also automate tasks like launching servers, moving files, and running quality assurance checks—all configured through simple terminal commands. The move is set to redefine core workflows, making agentic development more accessible and powerful than ever. Hence I installed node.js (version 18+) and authenticated to try on … Continue reading AI Coding Tools Shifting from IDE to Terminal
Python’s typing Library
Python is a dynamically typed language. This means you don't declare the type of a variable (x = 5 doesn't say x must be an int). You can even change a variable's type: x = 5, then x = "hello". This offers flexibility but can lead to confusion or errors, especially in larger codebases or … Continue reading Python’s typing Library