English Lesson — Monday Morning: Technical English for Developers
Daily English practice for tech professionals. Monday morning session — technical vocabulary for programming, git, APIs, and dev tools.
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English Lesson — Monday Noon: Technical Vocabulary Deep Dive
Daily English practice for tech professionals. Monday noon — deep dive into technical vocabulary used in code reviews, PRs, and Slack.
English Lesson — Sunday Evening: Weekly Recap & Preview
Daily English practice for tech professionals. Sunday evening — full weekly recap, next week preview, and motivational message.
English Lesson — Sunday Noon: Weekly Review Special
Daily English practice for tech professionals. Sunday noon — top 5 phrases from the week plus bonus idioms.
English Lesson — Sunday Morning: Weekly Review & Top Phrases
Weekly review of the best English words and phrases from this week. Perfect for tech professionals — consolidate your learning before the new week starts.
English Lesson — Saturday Noon: Social Phrases & Casual English
Daily English practice for tech professionals. Noon session — social idioms, casual expressions, and texting English for real-life conversations.
English Lesson — Saturday Morning: Social English & Small Talk
Daily English practice for tech professionals. Morning session covering social conversation, small talk phrases, and casual English for weekend situations.
English Lesson — Saturday Evening: Casual Conversation & Social Vibes
Daily English practice for tech professionals. Evening session — casual conversation, social English, and how to express feelings and atmosphere naturally.
DiffusionGemma-26B: What 1,000 Tokens/Second Means for Developer Tooling
Google just open-sourced the first credible text diffusion model from a major lab — DiffusionGemma-26B generates 1,000+ tokens/sec by abandoning autoregressive token generation entirely. Here's how Uniform State Diffusion actually works, when this architecture matters, and what it means for building with open-weights models.
English Lesson — Friday Evening: Career Interview Practice
Daily English practice for tech professionals. Evening session — review career vocabulary and interview practice sentences.
Friday Morning English: Take Initiative at Work
Learn the word 'initiative' — how to use it in career conversations, emails, and job interviews. Real examples for Vietnamese professionals.
English Lesson — Friday Noon: Career Vocabulary
Daily English practice for tech professionals. Noon session — career vocabulary deep dive with negotiation, leadership, and performance review language.
Microsoft Agent Framework 1.0: CodeAct Changed How I Think About .NET Agentic Apps
MAF 1.0 merges AutoGen and Semantic Kernel into one production SDK — but the real story is CodeAct, which cuts token consumption 63.9% by having the model write Python programs instead of making individual tool calls. Here's what changes for .NET teams building agentic systems.
Speaking Practice: Pronunciation Drills for the 5 Sounds Vietnamese Tech Developers Get Wrong
There are five specific sound patterns that consistently trip up Vietnamese developers in English tech conversations. Not because the sounds are impossible — but because they don't exist in Vietnamese phonology and require deliberate muscle-memory practice. Here are the drills.
Speaking Skills: Technical Storytelling — How to Make Your Architecture Decisions Actually Stick
Data doesn't persuade. Stories do. Technical storytelling is the skill of framing complex system decisions, incident postmortems, and architecture proposals as narratives that non-technical stakeholders follow and engineers remember. Here's the structure and the language.
Tech Lead English: How to Disagree, Debate, and Reach Decisions in Technical Discussions
In Vietnamese work culture, public disagreement with a more senior person feels high-risk. In international tech teams, failing to push back when you see a problem is what actually damages your credibility. Here's the English for productive technical disagreement — the language that moves discussions forward without destroying working relationships.
Claude Fable 5 Goes Public: What Mythos-Class AI Capabilities Mean for Developers
Anthropic just made its most powerful model tier publicly accessible. Claude Fable 5 and Mythos 5 represent a fundamental shift — not just in capability, but in who gets access to frontier AI. Here's what changed, what the safety trade-offs look like, and what it means for teams building on Claude.
English Lesson — Thursday Evening: Communication Role-Play
Daily English practice for tech professionals. Evening session — review communication phrases and real-world speaking scenarios for meetings and collaboration.
English Lesson — Thursday Morning: Professional Communication
Daily English practice for tech professionals. Morning session covering professional communication with pronunciation guide, exercises, and real-world examples.
English Lesson — Thursday Noon: Professional Communication Phrases
Daily English practice for tech professionals. Noon session — communication phrases deep dive: actionable feedback, meeting language, and email templates for tech teams.
Google I/O 2026: The Agentic Gemini Era Begins — DiffusionGemma, Multi-Step Reasoning, and What Changes for Developers
Google's I/O 2026 announcements mark a shift from conversational AI to autonomous agentic systems. DiffusionGemma delivers 4x faster text generation. Gemma 4 broadens the open-weights ecosystem. And the new developer APIs signal where Google is pushing the industry next.
Hermes Agent Architecture Deep Dive: The 8 Temporal Loops Explained
A technical deep dive into Hermes Agent's 8-loop temporal architecture — how each loop works, what triggers it, and how they compound to create an AI system that improves with use.
Hermes Agent: The AI OS with 8 Temporal Loops That Actually Gets Smarter
I spent 3 hours reading Hermes Agent source code — and discovered why most AI agents never improve. A deep dive into its 8-loop temporal architecture that makes AI compound over time.
Hermes Agent Coding Flow: How to Design Your AI-Assisted Development Workflow
How to design a Hermes Agent coding workflow that learns your codebase, accumulates reusable patterns, and accelerates feature development over time.
Hermes Agent: Complete Installation and Configuration Guide (2026)
Step-by-step installation guide for Hermes Agent — from prerequisites to first skill creation, with troubleshooting tips and production-ready configuration examples.
Building a QC Agent with Hermes: Automated Quality Control for Engineering Teams
How to build an automated quality control agent using Hermes — from code review automation to regression detection, test coverage analysis, and continuous quality improvement.
Designing Your Hermes Agent Skill Tagging System: A Complete Flow Guide
How to design an effective skill tagging and retrieval architecture in Hermes Agent — taxonomy design, tag hierarchies, retrieval optimization, and real-world tagging examples.
Adopting Hermes Agent as a Tech Lead: Team Rollout, ROI, and Pitfalls
A Tech Lead's guide to evaluating, piloting, and scaling Hermes Agent adoption across an engineering team — with ROI calculations, change management tips, and common failure modes.
QC/Agile English: How to Run and Participate in Sprint Retrospectives That Actually Improve Things
A retro that ends with three vague action items nobody does is worse than no retro. Here's the English for facilitating retrospectives that surface real problems, produce committed actions, and don't turn into complaint sessions — from opening the meeting to closing with accountability.
Speaking Practice: Shadowing — The Method That Actually Rewires Your Tech English Pronunciation
Shadowing is the single most effective speaking practice technique for non-native English speakers. You listen to a sentence and speak it simultaneously, matching rhythm, stress, and intonation in real time. Here's how to do it correctly with tech-specific scripts designed for Vietnamese developers.
Speaking Skills: How to Pitch a Technical Idea in English and Get Buy-In
Pitching a technical proposal in English isn't just about the idea — it's about structure, confidence, and handling skepticism without losing momentum. Here's a complete framework for pitching to your team or stakeholders, with scripts you can say aloud today.
Tech Lead English: How to Mentor Junior Developers Without Giving Them the Answers
Mentoring is one of the highest-leverage things a tech lead does — and one of the hardest to do well in a second language. The difference between giving answers and developing engineers is a specific set of phrases. Here's the English for questions that build thinking, feedback that sticks, and conversations that accelerate growth.
English Lesson — Wednesday Morning: Architecture Vocabulary
Daily English practice for tech professionals. Morning session covering architecture vocabulary — microservices, distributed systems, cloud-native design with pronunciation and real-world examples.
English Lesson — Wednesday Evening: Architecture Vocab Review & Explaining Systems Simply
Daily English practice for tech professionals. Evening session — review architecture vocabulary, learn to explain complex systems in plain English, and practice speaking with technical stakeholders.
English Lesson — Wednesday Noon: Architecture Vocabulary
Daily English practice for tech professionals. Noon session — architecture vocabulary deep dive: scalability, latency, microservices, and how to explain system design to non-tech stakeholders.
Gemini 3.5 Flash GA: Frontier Performance at 4x the Speed — What This Changes for Developers
Google's Gemini 3.5 Flash hit general availability with 4x faster inference than competing frontier models, a 1M token context window, and $1.50/$9 pricing. It outperforms Gemini 3.1 Pro on coding and agentic benchmarks. Here's the honest assessment of what this means.
QC/Agile English: Writing Bug Reports and Discussing Defects Without Getting Ignored
A vague bug report gets deprioritized or misunderstood. A well-written one gets fixed. Here's the English structure for defect reports that developers actually act on — plus the vocabulary for sprint defect discussions, triage calls, and status updates.
Speaking Practice: Connected Speech — Why Your English Sounds Choppy and How to Fix It
Native English speakers link, reduce, and blend words in ways no textbook teaches. If you pause between every word, you sound unnatural even with perfect grammar. Here are the four patterns of connected speech with tech-specific scripts to practice.
Speaking Skills: How to Facilitate Meetings in English With Confidence
Running a meeting in your second language is harder than attending one. You have to open, steer, redirect, and close — all in real time. Here's the language structure for each phase, from a Vietnamese tech lead's perspective.
Tech Lead English: Writing Code Review Comments That Actually Get Acted On
Code review comments in English have three failure modes: too vague to act on, too harsh to receive well, or too polite to land at all. Here's the language for reviews that teach, not just judge — from how to open a review to how to handle pushback.
TurboQuant: Google's 100x KV Cache Breakthrough and What It Means for Long-Context AI
Google's TurboQuant research reduces KV cache memory overhead by ~100x using a two-step algorithm combining PolarQuant vector rotation and Johnson-Lindenstrauss compression. This could make 2M-token context models economically feasible for many more teams.
Agile English: How to Talk About Estimation, Scope, and Sprint Planning
Sprint planning exposes every weakness in your English — defending estimates, pushing back on scope creep, explaining velocity, and saying no to 'just one more thing.' Here's the language that makes these conversations work.
How Chinese AI Labs Stole Claude's Capabilities Through Distillation Attacks
Anthropic documented how DeepSeek, Moonshot, and MiniMax ran 16 million fraudulent Claude queries through 24,000 fake accounts to distill Claude's reasoning, tool use, and coding capabilities into their own models. This is what the attack looked like, and why it matters.
Claude Opus 4.8 and Dynamic Workflows: When AI Agents Run Other Agents
Anthropic's Claude Opus 4.8 ships with Dynamic Workflows — a system where one Claude orchestrates up to 1,000 parallel subagents in a single session. The Bun-to-Rust port in 11 days is the proof of concept. Here's what this means for real engineering teams.
English Lesson — Tuesday Evening: AI Vocab Review & Listening Tips
Daily English practice for tech professionals. Evening session — review AI vocabulary, listening comprehension strategies, and speaking practice with AI terms.
English Lesson — Tuesday Morning: AI & Machine Learning
Daily English practice for tech professionals. Morning session covering AI and machine learning vocabulary — prompt engineering, RAG, inference — with pronunciation guide and real-world examples.
English Lesson — Tuesday Noon: AI Vocabulary Deep Dive
Daily English practice for tech professionals. Noon session — AI vocabulary deep dive: hallucinate, inference, embedding, and how to explain AI to non-tech stakeholders.
Speaking Practice: Pronunciation Drills for the Sounds That Give Vietnamese Developers Away
Four sounds that immediately mark you as a non-native English speaker in tech meetings: th, v/f, r/l, and short vowels. Targeted drills, shadowing scripts, and a 5-minute daily routine to fix each one.
Speaking Skills: How to Pitch a Technical Idea to Non-Technical Stakeholders
Pitching a refactor, a new tool, or an architecture change to people who control the budget is one of the hardest English speaking skills for Vietnamese tech leads. Here's the structure and language that actually works.
Tech Lead English: How to Run Effective 1-on-1s and Give Real Feedback
1-on-1 meetings are where tech leads either build trust or lose it. The English for these conversations — giving honest feedback, asking the right questions, handling discomfort — is specific and learnable. Here's what works.
English for Incident Reporting: How to Communicate Outages and Bugs Clearly
When production goes down, your English needs to be as reliable as your monitoring. Practical phrases and templates for incident updates, postmortem communication, and escalating bugs to non-technical stakeholders — from a Vietnamese tech lead's perspective.
English Lesson - Monday Evening: Technical Vocab Review and Speaking Practice
Daily English practice for tech professionals. Evening session reviewing technical vocabulary from today — refactor, nit, blocking, LGTM — with speaking exercises.
English Lesson — Monday Morning: Technical Vocabulary
Daily English practice for tech professionals. Morning session covering debugging and technical vocabulary with pronunciation guide, exercises, and real-world examples.
English Lesson — Monday Noon: Technical Vocabulary for Code Reviews and PRs
Daily English practice for tech professionals. Noon session covering technical vocabulary for code reviews, PRs, and Slack with exercises.
GitHub Copilot's AI Credits Billing: What Every Dev Team Should Know
GitHub switched Copilot from unlimited requests to token-based AI Credits on June 1, 2026. As a tech lead managing a team of 8, here's what changed, what it costs, and how to not get a surprise bill.
Microsoft's MAI Models: Why Building In-House AI Is a Bigger Deal Than the Benchmarks
At Build 2026, Microsoft announced MAI-Thinking-1 and MAI-Code-1-Flash — its first in-house foundation models built without OpenAI. The benchmarks are impressive, but the strategic shift is what developers should really pay attention to.
Shadowing Technique for Tech English: Sound More Natural in Meetings
The shadowing technique is the fastest way to fix unnatural-sounding English. Here's a practical guide with real tech conversation scripts, pronunciation drills, and a 5-minute daily practice routine.
Tech Lead English: How to Challenge Ideas Without Creating Conflict
Pushing back on bad technical decisions in English is a skill. Learn the phrases and techniques that let you disagree professionally, ask hard questions, and redirect discussions — without damaging working relationships.
Sprint Demo English: How to Present Your Work to Stakeholders
Practical English phrases and techniques for Vietnamese developers and tech leads to confidently run sprint demos, present features, and handle tough questions from stakeholders.
English Lesson — Friday Evening: Career Vocab Review & Interview Practice
Daily English practice for tech professionals. Evening session — review Friday's career vocabulary and practice with real interview speaking exercises.
English Lesson — Friday Morning: Career & Growth English
Daily English practice for tech professionals. Morning session covering career growth vocabulary — negotiation, leadership, interviews, and promotion language.
English Lesson — Friday Noon: Career Vocabulary Deep Dive
Daily English practice for tech professionals. Noon session — career vocabulary deep dive covering performance reviews, promotion language, and leadership phrases.
Why Your Vibe Coding is Costing You a Fortune (And How to Fix It)
Is your Claude Code token usage insanely high? The culprit might be your architecture. Learn how DRY principles and clear system design slash AI token costs.
Build a Mini PC Home Server: The Complete Guide for Developers
How I replaced cloud VPS with a mini PC homelab running Laravel, Docker, and Cloudflare Tunnel - saving money while learning real DevOps
Everyone's Asking Me About AI Trends. Here's What I Actually Think.
Stop asking what AI will do next. Start asking what you will do with it. A Product Lead and Tech Lead breakdown of the signals worth paying attention to in 2026.
Why AI Costs So Much: The LLM Tax on Things CPUs Do for Free
Microsoft cancelled thousands of Claude Code licenses. Uber burned its entire 2026 AI budget in four months. The technical reason why - and what every engineering team should do about it.
The Truth About Building AI Agents That No '3-Month AI Expert' Course Will Tell You
A Tech Lead's field notes from shipping production AI agents — why custom agents still matter, how to avoid the infra money pit, the architecture pattern that actually works, and why understanding your client matters more than understanding transformers.
The Multi-Agent Coding Grid: How I Use Claude as an Orchestrator with MiniMax and Kimi as Workers
A practical guide to running parallel AI coding agents using Claude as a manager, MiniMax and Kimi as workers, Linear as the task pool, and tmux as the control room. No frameworks — just shell scripts, lock files, and clear task specs.
The Hidden Cost of Vibe Coding: Why Your AI-Generated Codebase Is a Ticking Time Bomb
A Technical Lead's data-driven analysis of how vibe coding accelerates technical debt at 3x the normal rate, why 95% of developers feel productive while shipping worse code, and what rescue engineering looks like in 2026.
The Evolution of AI Agentic Patterns: From Prompts to Production Systems
How the central question of building with AI has shifted three times in four years — from 'what should I say?' to 'what system should I build?' A deep dive into prompt engineering, context engineering, and harness engineering with architecture diagrams, decision frameworks, and production lessons for engineering leaders.
Evidence-Based Debugging -- Giving Your Agent Eyes
An agent that guesses burns credits and ships bugs. An agent with Chrome DevTools, Docker logs, and semantic code understanding measures and fixes. The difference is not the model -- it is the tools.
Plan Mode or Bust -- Why Agents Must Think Before They Code
Every AI coding session that skips planning costs 3x more in debugging. Here is how plan mode works in Claude Code, real rejection logs, and why the QA agent rejects most first drafts.
Built with Agentic Engineering -- The New Way Software Gets Made
Forget vibe coding. This is a real workflow: plan with agents, verify with QA, review as human, ship to production. Here is what it actually looks like in practice.
The QA Agent -- Automated Code Verification That Actually Works
I built a QA agent that runs 10x slower than code generation and rejects plans 4-5 times before approving them. Here is the methodology, the real rejection logs, and why it changed everything.
From Agent to Production -- The Pipeline That Lets You Sleep
The full CI/CD pipeline for agentic code: spec to deploy in one workflow. Real examples from luonghongthuan.com and CubLearn. How to build the system that runs while you sleep.
The 5 Levels of Agentic Coding -- A Tech Lead's Field Guide to AI Engineering Maturity
From vibe coding to software craftsmanship. 84% of developers use AI tools, but only 29% trust the output. Here is the maturity model that separates the amateurs from the engineers.
Vibe Coding Is Creating a Mountain of Tech Trash -- Here Is the Data to Prove It
Vibe coding hit $4.7B in 2025. AI code has 2.74x more security vulnerabilities. 95% of AI pilots fail to create ROI. Here is the real story behind the hype -- and why founders need to be careful.
From 6 Months Outsourcing to 2 Weeks With AI -- A Business Owner's Playbook
How a non-technical business owner went from painful outsourcing cycles to building products himself with Claude, Gemini, Codex, and Google Stitch. Real workflow, real tools, real numbers.
$0/Month -- Self-Hosting an LLM API Server for Your Entire Team
A deep dive into building a local LLM API server on an RTX 3060. Ollama + FastAPI + Cloudflare Tunnel. 6 layers of security, real benchmarks, and hard-won lessons.
Is Vibe Coding Dead? The Shift to Agentic Engineering in the AI Era
One year after Andrej Karpathy coined 'vibe coding', the industry is moving on. Discover why vibe coding fails at scale — context collapse, cognitive debt, zero system design — and how agentic engineering is emerging as the professional discipline for AI-first software development.
The Harness Problem: Why Your AI Briefs Are Costing You More, Not Less
A personal take on the hidden cost of AI-generated briefs. When CEOs and managers skip the reasoning process and hand developers full AI implementations as 'briefs,' they double the workload instead of halving it. The same problem plagues multi-agent AI systems — and the solution is the same: a Harness.
Agent Learning: Memory, RAG, and Skills That Grow Over Time
Make agents smarter over time with long-term memory, RAG, task reflection, and inter-agent knowledge sharing.
Cost, Model Selection, and Taking Your AI Team to Production
The finale. Optimize costs, match models to agents, calculate ROI, and make your AI team production-ready.
Dashboard: Real-Time Visibility Into Your AI Team
Build a real-time Streamlit dashboard: Kanban board, agent status, cost tracking, and human checkpoint approval.
Project Setup: BaseAgent, State, and Shared Infrastructure
Build the foundation: BaseAgent class, TeamState, agent config YAML, SQLite memory store, and tool registry.
PO and BA Agents: From Client Brief to User Stories
Build the Product Owner and Business Analyst agents. The PO clarifies requirements and defines scope; the BA breaks them into actionable user stories with acceptance criteria. Full implementation with prompts and output schemas.
QC and TA Agents: Defining Quality and Technical Design
Build the QC Engineer and Technical Architect agents. QC writes test cases and acceptance gates before code exists. TA produces the technical spec, architecture decisions, and implementation plan. They run in parallel — the first big optimization in our pipeline.
The SSE Agent: Code Generation, Self-Testing, and Iteration
Build the Senior Software Engineer agent that writes code, runs tests, and iterates until they pass.
TL, DevOps, and PM Agents: Review, Deploy, and Coordinate
Build the Tech Lead (code review), DevOps (CI/CD generation), and PM (coordination) agents.
The Complete Workflow: Wiring All Agents End-to-End
Assemble all 8 agents into a single LangGraph workflow. Full E2E example from client brief to deployed config.
Vibe Coding with Claude: From Idea to Production in One Pair Programming Session
A hands-on account of building, debugging, and shipping real features using Claude Opus 4 as a pair programmer — including the failures, the debugging rabbit holes, and the moments where AI pair programming genuinely shines.
Building an AI Software Team: Why Simulate a Dev Team with Agents?
The vision behind building autonomous AI agents for every role in a software team: PO, BA, QC, TA, SSE, DevOps, TL, and PM. From solo developer bottleneck to an AI-powered development pipeline.
LangGraph vs AutoGen vs CrewAI: Picking Your Agent Framework
A hands-on comparison of the top multi-agent frameworks: LangGraph, AutoGen, and CrewAI. We build the same PO Agent in all three to see which fits best for a software team simulation.
Designing Your AI Team: Architecture, DDD, and Communication
How to architect a multi-agent system using Domain-Driven Design principles. Define bounded contexts, domain events, state machines, and communication patterns for your AI software team.
Build an Agentic AI System From Scratch: Step-by-Step Implementation Guide
Complete hands-on guide to building a production-ready agentic AI system. From project setup to deployment — every layer implemented with working code, tests, and Docker compose.
Qwen Voice AI: Complete Guide to Building Interview Agents, Language Tutors & Voice Systems
Everything about Qwen's voice ecosystem — Qwen3-TTS, Qwen3-ASR, Qwen3-Omni, Qwen-Agent — and step-by-step implementation of Voice Interview Agent, Language Tutor, and Voice Tutor systems with full production code.
Qwen Voice AI: Complete Guide to Building Interview Agents, Language Tutors & Voice Systems
Everything about Qwen's voice ecosystem — Qwen3-TTS, Qwen3-ASR, Qwen3-Omni, Qwen-Agent — and step-by-step implementation of Voice Interview Agent, Language Tutor, and Voice Tutor systems with full production code.
Build a $0 Agentic AI System: Architecture That Scales from Prototype to Production
A complete technical guide to building a profitable agentic AI system using only open-source tools — with retrieval, orchestration, tool use, and observability. Includes architecture diagrams and real cost analysis.
English Lesson — Tuesday Morning: AI & Machine Learning
Daily English practice for tech professionals. Morning session covering AI & Machine Learning vocabulary — LLMs, agents, prompting, RAG, and inference — with pronunciation guide, exercises, and real-world examples.
English Lesson — Tuesday Noon: AI Vocabulary
Daily English practice for tech professionals. Noon session — AI jargon, buzzwords, and how to explain AI concepts in plain English.
MCP at 97 Million Installs: The Protocol That Became AI's TCP/IP
Anthropic's Model Context Protocol hit 97M installs and joined the Linux Foundation. As a Technical Lead, here's what this means for how we build AI systems today and tomorrow.
Microsoft's MAI Models: Breaking Free from the OpenAI Dependency
Microsoft just released three foundational AI models — MAI-Transcribe-1, MAI-Voice-1, and MAI-Image-2. This isn't just a product launch. It's a strategic shift that every enterprise architect should understand.
Tech Pronunciation Drills: Say It Right the First Time
Shadowing scripts, tongue twisters, and pronunciation drills for the tech words Vietnamese developers mispronounce most. Practice out loud for 5 minutes and build real confidence.
Technical Storytelling: How to Make Your Ideas Stick in International Teams
Learn how to use storytelling techniques when presenting technical ideas, explaining architecture decisions, or pitching solutions to stakeholders in English.
Tech Lead English: Giving Code Review Feedback That Actually Helps
Learn how to deliver constructive code review comments in English — phrases, tone, and techniques for Vietnamese tech leads working in international teams.
Sprint Meeting English: How to Speak Up Confidently in Agile Teams
Master the phrases, vocabulary, and speaking patterns you need for daily standups, sprint planning, retrospectives, and bug reports in international Agile teams.
English Lesson — Monday Evening: Technical Vocabulary Review & Speaking Practice
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Monday Morning: Technical English (Git, APIs & Dev Tools)
Daily English practice for tech professionals. Morning session covering technical vocabulary — git commands, APIs, terminal, and dev tools — with pronunciation guide, exercises, and real-world examples.
English Lesson — Sunday Noon: Weekly Review Special
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Governing AI Agents in Production: What Microsoft's New Toolkit Gets Right
Microsoft released the Agent Governance Toolkit on April 3, 2026 — seven packages covering policy enforcement, cryptographic identity, runtime isolation, and compliance automation. Here's a practical breakdown from someone building production agents.
MCP at 97 Million Installs: The Protocol That Quietly Became AI Agent Infrastructure
Anthropic's Model Context Protocol crossed 97M installs in March 2026. As a Technical Lead who's been building with MCP since early days, here's what that milestone actually means — and why every developer building AI systems needs to understand it now.
Shadow & Speak: A 5-Minute Daily Drill for Vietnamese Developers
Build spoken English fluency fast with shadowing scripts, tongue twisters, and pronunciation drills designed for Vietnamese tech professionals.
Tech Pronunciation Drills: Fix the 8 Sounds That Trip Up Vietnamese Developers
A practical speaking practice guide with pronunciation drills, shadowing scripts, and tongue twisters for Vietnamese tech professionals. Master the sounds that make international meetings harder.
Technical Storytelling: How to Make People Actually Care About Your Code
Most developers explain what they built. Great tech leads tell why it matters. Learn the storytelling framework that makes your technical ideas land in meetings, demos, and presentations.
English Lesson — Sunday Evening: Full Weekly Recap + Next Week Preview
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Sunday Morning: Weekly Review 🔁
Daily English practice for tech professionals. Morning session covering the weekly review — top 5 words and phrases from the week with pronunciation guide, exercises, and real-world examples.
English Lesson — Saturday Noon: Social Phrases & Casual English
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
GPT-5.4 and the Autonomous Agent Era: What Technical Leads Need to Know
OpenAI's GPT-5.4 crosses the human baseline on OSWorld-V with native computer-use, 1M token context, and parallel tool calling. Here's what it actually means for teams building AI systems in 2026.
How to Run Effective 1-on-1s in English: A Guide for Tech Leads
Learn the exact phrases, structure, and vocabulary to run confident, productive 1-on-1 meetings in English — from opening the conversation to giving difficult feedback.
PrismML Bonsai: 1-Bit LLMs and the Edge AI Revolution
An 8B model that fits in 1GB RAM, runs on your iPhone, and stays competitive with full-precision models. PrismML's Bonsai changes the math on edge AI deployment. Here's the technical breakdown.
Sound Like a Pro: Daily Pronunciation Drills for Vietnamese Developers
Targeted pronunciation exercises for the sounds Vietnamese speakers struggle with most — th, v/f, r/l, and short vowels — with tech-themed scripts and shadowing drills.
Tech Lead English: Mastering 1-on-1 Conversations
A practical guide for Vietnamese tech leads on running effective 1-on-1 meetings in English — from opening questions to giving feedback and closing action items.
Tech Lead English: How to Mentor Junior Developers
Practical English phrases and strategies for Vietnamese tech leads who mentor, coach, and guide junior developers in international teams.
Agentic AI in Production: What Stripe, OpenAI, and AWS Are Building Right Now
Stripe's autonomous agents write 1,300 PRs per week. OpenAI extended its Responses API with shell tools. AWS launched Strands Labs. The agentic shift is no longer theoretical — here's what it looks like in the real world.
English for Agile Sprints: Say the Right Thing in Every Ceremony
Master practical English phrases for daily standups, sprint planning, retrospectives, and estimation meetings — built for Vietnamese developers working in international Agile teams.
How to Give Code Review Feedback Like a Senior Tech Lead
Master the English phrases and tone used by senior engineers when reviewing code. Learn to give feedback that is clear, respectful, and actionable — without sounding harsh or vague.
English Lesson — Saturday Morning: Social English & Small Talk
Daily English practice for tech professionals. Morning session covering social English — casual conversation, small talk, and social situations — with pronunciation guide, exercises, and real-world examples.
English Lesson — Saturday Evening: Weekend Social English
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Friday Noon: Career Vocabulary
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Llama 4 vs Gemma 4: The Open-Source LLM Race Just Got Real
Meta dropped Llama 4 Scout, Maverick, and Behemoth. Google fired back with Gemma 4. As a Technical Lead, here's what these releases actually mean for your teams and projects.
Speaking Practice: Pronunciation Drills for Vietnamese Tech Professionals
Master the hardest English sounds — th, v/f, r/l, and short vowels — with tech-themed tongue twisters, shadowing scripts, and 5-minute daily drills.
Speaking Skills: Technical Storytelling — Make Your Ideas Stick
Learn how to use storytelling techniques when presenting technical ideas. As a Vietnamese developer or tech lead, master the art of making complex concepts memorable and compelling for any audience.
English Lesson — Friday Evening: Review Career Vocab + Interview Practice Sentences
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Thursday Noon: Communication Phrases
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
The LLM Cost War: Qwen3.6-Plus, Gemini Flash-Lite, and the Dawn of Commodity AI
Alibaba just released its third proprietary model in days. Google's Gemini Flash-Lite costs $0.25 per million tokens. NVIDIA's Nemotron runs 2.2x faster than GPT-OSS-120B. The LLM cost war has arrived — here's what it means for architects choosing AI infrastructure in 2026.
OpenAI Responses API: Building Production-Grade Agentic Systems in 2026
OpenAI just extended the Responses API with a shell tool, hosted container workspace, context compaction, and reusable agent skills. Here's what this means for teams building real agentic workflows — with hands-on examples.
Tech Lead English: How to Give Code Reviews That Actually Help
Master the English phrases and communication skills for giving constructive, clear, and respectful code reviews — especially when working with international teams.
Tech Pronunciation Drills: Shadowing Scripts for Developers
Practical shadowing exercises, tongue twisters, and pronunciation drills for Vietnamese developers who want to sound natural speaking English in tech environments.
Agent2Agent Protocol: Building the Internet of AI Agents
The A2A protocol under the Linux Foundation is quietly becoming the HTTP of the agentic era. Here's what it means for enterprise architects, why it matters more than another model release, and how to think about it from a systems design perspective.
English Lesson — Wednesday Morning: System Architecture
Daily English practice for tech professionals. Morning session covering system architecture vocabulary with pronunciation guide, exercises, and real-world examples.
English Lesson — Tuesday Noon: AI Vocabulary Deep Dive
Daily English practice for tech professionals. Noon session — AI vocabulary deep dive with pronunciation, exercises, and real-world examples.
GPT-5.4 and the Agentic Revolution: When AI Becomes Your Autonomous Coworker
GPT-5.4 crossed human performance on desktop tasks. With a hosted shell, 1M context window, and native compaction, the era of AI as an autonomous coworker is finally here — and the implications for developers are profound.
Pronunciation Drills: Master the Tech Sounds That Trip Up Vietnamese Developers
A practical pronunciation workout for Vietnamese tech professionals. Drill the trickiest English sounds — th, v/f, r/l, and short vowels — using real tech vocabulary and workplace phrases.
Pronunciation Drills for Tech Professionals: Master the Sounds That Trip Vietnamese Speakers
Practical pronunciation drills for Vietnamese developers — conquer the 'th', 'v/w', 'r/l' sounds and speak English confidently in code reviews and team meetings.
Tech Digest — April 1, 2026: AI Coding War, Supply Chain Security & Engineering Leadership
This week's top reads for Tech Leads & Engineers: the AI coding tools war heats up, Stripe's autonomous agents ship 1,300 PRs/week, software supply chain becomes the #1 attack vector, and engineering leadership rethinks itself.
Tech Lead English: How to Give Code Review Feedback That Doesn't Sound Harsh
Learn the exact English phrases Vietnamese tech leads use to give constructive, clear, and professional code review feedback in international teams.
Agile English: Speaking Confidently in Sprint Meetings & Estimation Sessions
Master the English phrases Vietnamese tech leads and developers need for sprint planning, story point estimation, bug triage, and project status updates in Agile teams.
The AI Toolchain War: Why Anthropic Bought Bun and OpenAI Bought Astral
Anthropic acquired Bun in December 2025. OpenAI acquired Astral (uv, Ruff) in March 2026. The AI model war has a new front: owning the developer toolchain. Here's what this arms race means for how you build software.
Apple's $1B Gemini Deal: What Project Campos Means for Developers
Apple just committed $1 billion per year to run Google Gemini inside Siri. As a Technical Lead who builds on Apple's platform, here's what I think this means beyond the headlines — privacy tradeoffs, WWDC expectations, and what APIs you should be watching.
English Lesson — Tuesday Evening: Review AI Vocab + Listening Comprehension Tips
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Tuesday Morning: AI & Machine Learning
Daily English practice for tech professionals. Morning session covering AI & Machine Learning vocabulary with pronunciation guide, exercises, and real-world examples.
English Lesson — Tuesday Noon: AI Vocabulary
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
How to Pitch Your Ideas to Stakeholders in English
A practical guide for Vietnamese tech leads on presenting ideas clearly, confidently, and persuasively to international stakeholders — with key phrases, vocabulary, and a 5-minute drill.
Tech Pronunciation Drills: Say These Words Like a Native Dev
A shadowing and drill session for Vietnamese developers — master the English words you type every day but never say out loud correctly.
Tech Lead English: How to Lead Architecture Debates Without Losing the Room
Practical English phrases for Vietnamese tech leads navigating technical disagreements, design discussions, and architecture decision meetings with international teams.
Cursor's Parallel Subagents: How AI Just Rewrote the Developer Playbook
Cursor's March 2026 release brings parallel subagents, BugBot Autofix, and cloud agents — a genuine shift from AI coding assistant to AI workflow engine. Here's what it means for real teams.
Dapr Agents v1.0: The Missing Infrastructure Layer for Production AI
The CNCF just made Dapr Agents v1.0 generally available. After years of AI agent frameworks focused on intelligence, here's one that focuses on survival — durable workflows, state management, and production-grade reliability on Kubernetes.
Data Is the Lifeblood of the AI Agents Era: Why AI Skills + Data Skills Are Inseparable
When everyone uses AI/Agents, models become a commodity. That's when Data becomes the real differentiator — deciding whether your agent runs 'for fun' or 'accurately, optimally, and consistently'. AI Skills and Data Skills are an inseparable duo.
English Lesson — Monday Evening: Review Technical Vocab + Speaking Practice
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Monday Morning: Technical English for Developers
Daily English practice for tech professionals. Morning session covering technical vocabulary — programming, dev tools, git, APIs, and terminal commands — with pronunciation guide, exercises, and real-world examples.
English Lesson — Monday Noon: Technical Vocabulary Deep Dive
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
How to Report and Escalate Bugs in English: A Sprint Review Survival Guide
Practical English phrases for QC engineers and developers: how to describe bugs clearly, escalate blockers, and communicate defects during sprint reviews in international teams.
Speaking Practice: Pronunciation Drills for Vietnamese Tech Professionals
Targeted pronunciation drills for the sounds Vietnamese developers struggle with most — th, v/f, short vowels, and tech vocabulary. Read out loud, shadow, and drill your way to clearer English.
How to Pitch Your Technical Ideas to Stakeholders (Without Losing Them)
A practical guide for Vietnamese developers and tech leads on how to pitch ideas clearly, confidently, and persuasively in English to non-technical stakeholders.
Tech Lead English: How to Conduct Effective 1-on-1 Meetings
Master the English phrases and conversation structure for running productive 1-on-1s with your team — with real scripts, vocabulary, and pronunciation tips for Vietnamese tech leads.
English for Sprint Planning: How to Estimate and Negotiate Story Points Like a Pro
Master the English phrases Vietnamese tech leads need to run confident sprint planning sessions — from estimation debates to scope negotiation and pushing back on unrealistic timelines.
English Lesson — Sunday Evening: Full Weekly Recap + Next Week Preview
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Sunday Morning: Weekly Review (March 23–28)
Daily English practice for tech professionals. Morning session — Sunday Weekly Review covering the top 5 words and phrases from the week: Technical, AI & ML, Architecture, Professional Communication, Career & Growth, and Social English.
English Lesson — Sunday Noon: Weekly Review Special
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Gemini 3.1 Flash-Lite Is Free: What It Actually Means for Developer Economics
Google just made Gemini Code Assist free and priced Flash-Lite at $0.25/M tokens. After 15 years building production systems, here's what this cost collapse really changes about how we build.
MCP at 10,000 Servers: How a Protocol Became the Agent Integration Standard
The Model Context Protocol crossed 10,000 published servers under the Linux Foundation's Agentic AI Foundation. As someone who's integrated dozens of AI systems, here's why this number matters more than any benchmark.
Speaking Practice: Tech Pronunciation Drills for Vietnamese Developers
Shadowing scripts, tongue twisters, and pronunciation drills targeting the hardest English sounds for Vietnamese tech professionals — th, v/f, r/l, and short vowels.
How to Speak to Stakeholders in English: A Vietnamese Tech Lead's Guide
Real phrases, scripts, and a 5-minute drill to help you communicate clearly with managers, clients, and executives in international teams.
Tech Lead English: How to Give Code Reviews That Don't Kill Team Morale
Master the English phrases and tone needed to deliver effective, respectful code reviews as a Vietnamese tech lead in international teams.
The AI Cost Collapse: How to Architect Smart at Under $1/M Tokens
GPT-4 level AI cost $30/M tokens in 2023. Today it's under $1. Here's the technical architecture that lets you capture 90%+ of that savings without sacrificing quality.
Build a Full-Stack Startup for $20/Month: The 2026 Free-Tier Stack
A comprehensive guide to the modern free-tier tech stack that lets you build, deploy, and scale a startup for roughly $20/month. No servers. No DevOps team. No funding required. Just an idea and WiFi.
Devstral 2: Why Open-Source Just Won the Coding Agent War
Mistral's Devstral 2 achieves 72.2% on SWE-Bench at 7x cheaper than Claude Sonnet. Here's what this means for teams building AI-powered dev tooling in 2026.
Sprint Estimation in English: Stop Saying 'I Think Maybe 2 Days'
Learn how to give confident, clear sprint estimations in English — with real phrases, vocabulary, and practice scripts for Vietnamese tech leads.
English Lesson — Saturday Evening: Casual Conversation & Weekend Social English
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Saturday Morning: Social English & Small Talk
Daily English practice for tech professionals. Morning session covering social conversation, casual small talk, and everyday social situations with pronunciation guide, exercises, and real-world examples.
English Lesson — Saturday Noon: Social Phrases & Casual English
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Sounding Natural in English: Filler Words and Discourse Markers You're Probably Missing
Stop sounding like a textbook. Learn the filler words, hedges, and discourse markers that make your English conversations flow naturally — a practical guide for Vietnamese professionals.
How to Pitch Your Ideas in English Like a Senior Engineer
A practical speaking guide for Vietnamese developers who want to propose technical ideas confidently in English — from team meetings to executive presentations.
QC/Testing English: How to Write Bug Reports, Test Cases & Review Comments Like a Pro
A practical guide for Vietnamese QA engineers and developers to communicate clearly in English — covering bug reports, test case writing, and professional review comments.
Agile English: How to Speak Up in Sprint Planning & Retrospectives
Practical English phrases and dialogue examples for Vietnamese developers in Agile ceremonies — sprint planning, retrospectives, estimation, and project updates.
AI Agents in Production 2026: The Shift from Copilot to Autopilot
90% of developers now use AI at work. But the real shift in March 2026 is agents moving from suggestion-mode to autonomous execution. Here's what that actually looks like in production systems and what breaks when you go too far too fast.
English for Estimation and Managing Deadline Expectations
A practical guide for Vietnamese developers on how to give task estimates, push back on unrealistic deadlines, and manage stakeholder expectations confidently in English.
English Lesson — Friday Evening: Career Vocab & Interview Practice
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Friday Morning: Career & Growth
Daily English practice for tech professionals. Morning session covering career growth with pronunciation guide, exercises, and real-world examples for negotiations, interviews, leadership, and promotion conversations.
English Lesson — Friday Noon: Career Vocabulary
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Gemini 3.1 Pro: What Actually Matters for Developers in 2026
Deep dive into Gemini 3.1 Pro's practical developer features — 77.1% ARC-AGI-2, dynamic thinking API, 1M token context, and what these benchmarks actually mean when building production AI systems.
Tech Lead English: How to Run Effective 1-on-1 Meetings
A practical guide for Vietnamese tech leads on how to lead 1-on-1 meetings in English — with real phrases, dialogue examples, and mistakes to avoid.
Agentic AI Developer Tools 2026: When AI Becomes Your Engineering Team
March 2026 marks a turning point — AI coding tools evolved from assistants to autonomous agents. As a Technical Lead, here's what you actually need to know to navigate JetBrains Central, GitHub Agent HQ, Dapr Agents, MCP, and the multi-agent revolution.
Agile English: How to Speak Confidently in Sprint Planning & Retrospectives
A practical guide for Vietnamese developers and tech leads to master Agile meeting English — from sprint planning to retrospectives, with real phrases, dialogues, and common mistakes to avoid.
DeepSeek V3.2 vs Gemini 3: A Technical Lead's Practical Comparison
Beyond benchmarks — a real comparison of DeepSeek V3.2 and Gemini 3 Pro for production developer workflows. Cost, code quality, context window, multimodal capabilities, and when to use which.
English Lesson — Thursday Evening: Communication Phrases & Role-Play Scenarios
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Thursday Morning: Professional Communication
Daily English practice for tech professionals. Morning session covering professional communication with pronunciation guide, exercises, and real-world examples for meetings, emails, and presentations.
English Lesson — Thursday Noon: Communication Phrases
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
QC English: Writing Bug Reports, Test Cases & Review Comments That Actually Get Read
Practical English phrases and templates for QA engineers — how to write clear bug reports, professional test cases, and constructive review comments in international teams.
Tech Lead English: How to Run Effective 1-on-1 Meetings
A practical guide for Vietnamese tech leads on running 1-on-1 meetings in English — what to say, how to give feedback, and phrases that build trust with your team.
Workplace Small Talk: The English Skill Vietnamese Developers Often Overlook
Master everyday small talk and casual conversation at international workplaces. Real phrases, dialogue examples, and common mistakes Vietnamese speakers make.
Agile English: How to Speak Confidently in Sprint Planning and Retrospectives
Practical English phrases, templates, and dialogue examples for sprint planning, retrospectives, estimation, and project updates — written for Vietnamese developers working in international teams.
Claude API March 2026: The Features That Finally Make Agents Production-Ready
Compaction API, memory tool, effort parameter, web fetch, and MCP plugins — Claude's March 2026 API updates are not incremental improvements. They solve the hardest problems in agentic AI development.
How to Disagree Politely in English at Work (Without Seeming Rude)
Vietnamese professionals often stay silent rather than push back in English. Learn the phrases, frameworks, and mindset to disagree respectfully and be heard in international teams.
English for QA: Writing Bug Reports and Test Cases That Actually Get Fixed
A practical guide for Vietnamese QA engineers and developers on writing clear, professional bug reports and test cases in English that your international team will understand and act on.
English Lesson — Wednesday Evening: Architecture Vocab & Explaining Complex Systems Simply
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios. Tonight: master the language of system design and learn how to explain complex architectures clearly.
English Lesson — Wednesday Morning: System Architecture
Daily English practice for tech professionals. Morning session covering System Architecture vocabulary — microservices, scalability, fault tolerance, load balancing, and cloud design patterns — with pronunciation guide, exercises, and real-world examples.
English Lesson — Wednesday Noon: Architecture Vocabulary
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Mistral 3 in Production: What Open-Source AI Gets Right (and Wrong) in 2026
Mistral Large 3's MoE architecture delivers 92% of GPT-5.2's performance at 15% of the cost. As a technical lead who has run open-source LLMs in production, here's where it works and where it fails.
Tech Lead English: Navigating Difficult Conversations
How to push back on unrealistic deadlines, handle conflicts, and escalate issues in English — practical phrases and dialogues for Vietnamese tech leads.
How to Speak Up in Sprint Retrospectives: A Vietnamese Developer's Guide
Practical English phrases and templates for speaking confidently in Agile retrospectives — share wins, raise issues, suggest improvements without feeling awkward.
Business English for Tech Professionals: Presentations, Demos & Stakeholder Q&A
Master the exact words, phrases, and scripts that senior engineers and tech leads use when presenting technical work to non-technical stakeholders, running product demos, and handling tough questions under pressure.
English Lesson — Tuesday Evening: Review AI Vocab + Listening Comprehension Tips
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Tuesday Morning: AI & Machine Learning
Daily English practice for tech professionals. Morning session covering AI & Machine Learning vocabulary — LLMs, agents, prompting, RAG, and inference — with pronunciation guide, exercises, and real-world examples.
English Lesson — Tuesday Noon: AI Vocabulary
Daily English practice for tech professionals. Noon session — AI jargon, buzzwords, and how to explain AI concepts in plain English.
QC/Testing English: How to Write Bug Reports and Review Comments Like a Pro
A practical guide for Vietnamese QA engineers and developers on writing clear bug reports, test cases, and code review comments in English for international teams.
What Production AI Agents Actually Look Like in 2026 — Not the Demo, the Reality
Gartner says 40% of enterprise apps will embed AI agents this year. But 40% of agentic projects will be scrapped by 2027. Here's what separates the teams that ship production agents from those that get stuck in pilots forever.
The March 2026 Frontier: Claude 4.6 vs GPT-5.4 vs Gemini 3.1 — A Technical Lead's Breakdown
Claude Opus 4.6, GPT-5.4 Thinking, and Gemini 3.1 Pro all shipped within the same month. Here's a practical guide to choosing the right model for your team — based on real benchmarks and production patterns, not marketing slides.
Mistral Devstral 2: The Open-Source Coding Agent That Challenges Claude and Codex
Mistral's Devstral 2 scores 72.2% on SWE-bench, ships under MIT license, and costs up to 7x less than Claude Sonnet. Here's how it works, when to use it, and whether open-source agentic coding is finally production-ready.
Small Talk at Work: The Unwritten English Skill Vietnamese Professionals Need
Master workplace small talk in English — the casual conversations that build relationships, boost trust, and open career doors. A practical guide for Vietnamese professionals.
Tech Lead English: Facilitating Technical Design Discussions
Practical English phrases and dialogue templates for Vietnamese Tech Leads running architecture reviews, proposing solutions, and handling technical disagreements in international teams.
Agile English: Writing User Stories and Acceptance Criteria That Get Approved
Practical English templates and phrases for Vietnamese developers writing user stories, acceptance criteria, and backlog items that product owners and international teams actually understand.
Business English for Tech Professionals: Architecture Proposals, Design Reviews & Technical Disagreements
The exact language patterns senior engineers use to propose technical solutions, run architecture review meetings, push back on bad ideas without damaging relationships, and write ADRs that actually get read and followed.
Claude Opus 4.6 Agent Teams: Multi-Agent Development Is Here
Anthropic's Agent Teams feature in Claude Opus 4.6 lets multiple Claude Code instances work in parallel on the same codebase. Here's the architectural model, real-world performance data, and what actually changes for teams building production software.
English Lesson — Monday Evening: Review Technical Vocab + Speaking Practice
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Monday Morning: Technical Vocabulary for Developers
Daily English practice for tech professionals. Morning session covering technical programming vocabulary — APIs, terminal commands, Git, and dev tools — with pronunciation guide, exercises, and real-world examples.
English Lesson — Monday Noon: Technical Vocabulary Deep Dive
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
GPT-5.4 Computer Use: The First AI to Beat Humans at Desktop Tasks
GPT-5.4 scored 75% on OSWorld-Verified, surpassing human baseline of 72.4%. Here's what this means for developers building agentic systems in 2026, with real API examples and architectural patterns.
Small Talk at Work: The English Skill Vietnamese Developers Often Overlook
Master workplace small talk and daily conversation in English. Real phrases, dialogue examples, and common mistakes Vietnamese speakers make when working in international teams.
Agile English: How to Give Project Status Updates That Build Trust
Practical English phrases and templates for Vietnamese developers giving project status updates, reporting delays, and communicating with stakeholders in Agile teams.
AI-Driven Software Architecture: A Hands-On Guide for Engineering Teams (2026)
How AI is reshaping software architecture from the inside — ML-powered pattern selection, LLM orchestration, AI gateways, event-driven agents, and a full team implementation roadmap with diagrams and production-ready code.
Anthropic vs the Pentagon: What AI Ethics Actually Means for Technical Leads
Anthropic refused DoD's mass surveillance deal. OpenAI signed it and lost millions of users overnight. This is not an abstract ethics debate — it's a supply chain risk that every technical lead building on AI APIs needs to understand now.
Business English for Tech Professionals: Engineering Leadership — One-on-Ones, Feedback, Hiring & Difficult Conversations
The exact language patterns for engineering managers and senior tech leads: running one-on-ones that build trust, giving feedback that actually changes behavior, making the case for promotion, navigating scope and timeline negotiations, and handling the difficult conversations nobody prepares you for.
English for QC/Testers: Writing Clear Bug Reports and Review Comments
A practical guide for Vietnamese QA engineers on writing professional bug reports, test cases, and code review comments in English that your international team will actually understand.
English Lesson — Sunday Evening: Weekly Recap & Looking Ahead
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
English Lesson — Sunday Morning: Weekly Review & Top 5 Highlights
Daily English practice for tech professionals. Morning session covering the weekly review — top 5 words and phrases from the week with pronunciation, exercises, and real-world examples.
English Lesson — Sunday Noon: Weekly Review Special
Daily English practice for tech professionals. Noon session — top 5 phrases from the week + bonus idioms, pronunciation drills, and the ultimate weekly challenge.
English Upgrade #13: Feature Demos and Team Onboarding
How to demo new features clearly and onboard new team members in English. Scripts, checklists, and phrases for knowledge transfer and first-week communication.
When All Frontier AI Models Are Equal: A Technical Lead's Guide to Choosing in 2026
GPT-5.4, Gemini 3.1 Pro, and Claude 4.6 are now neck-and-neck on benchmarks. When the models are equal, everything else becomes the differentiator. Here's how to choose.
Umbraco AI Migration Playbook: CI/CD for Azure App Service & Local Self-Host
Building a production-grade CI/CD pipeline for Umbraco 17: GitHub Actions to Azure App Service with zero-downtime slot swaps, Docker Compose for local development, uSync in the pipeline, Azure Blob Storage for media, and environment-specific configuration.
Small Talk at Work: The Skill Vietnamese Developers Often Skip
Master workplace small talk and daily English conversation. Practical phrases, real dialogues, and common mistakes Vietnamese speakers make when chatting with international colleagues.
Agile English: How to Speak Up in Sprint Planning and Retrospectives
Practical English phrases and dialogue examples for Vietnamese developers navigating sprint planning, retrospectives, and estimation meetings in international Agile teams.
The AI Bridge: How Product Owners and Developers Finally Speak the Same Language
Product owners think in outcomes. Developers think in systems. AI can bridge that gap — with the right documents, workflows, and prompts. Here's exactly how.
English Lesson — Saturday Evening: Casual Conversation & Social Situations
Daily English practice for tech professionals. Session 3 of 3: Saturday evening lesson covering casual social phrases, pronunciation guide, exercises, and real-world practice.
English Lesson — Saturday Noon: Social Phrases & Casual English
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
English Upgrade #12: Client Meetings — Rehearsal to Delivery
From technical design with clients to demo rehearsals and live presentations. The complete English toolkit for client-facing meetings.
QC/Testing English: Writing Bug Reports and Review Comments That Actually Get Fixed
A practical guide for Vietnamese QA engineers and testers on writing clear bug reports, test cases, and code review comments in English that developers actually understand and act on.
Tech Lead English: How to Run Effective 1-on-1 Meetings
Practical English phrases and templates for Vietnamese tech leads running 1-on-1 meetings — from opening the conversation to giving feedback and setting goals.
AI for the Other 80%: Requirements, Documentation, and Decisions
Code generation gets all the hype, but AI's biggest impact might be in the 80% of development that isn't writing code: requirements, docs, architecture decisions, and communication.
English Upgrade #11: Talking to Non-Technical Stakeholders
How to translate technology into business language. Status updates, executive summaries, and demo presentations — in English that CEOs and product owners actually understand.
Google Stitch + Claude Code: Build Professional Websites in Hours, Not Weeks
A practical guide to combining Google Stitch (free AI design tool) with Claude Code to create branded, production-ready websites — without the generic AI template look.
The Technical Lead in 2026: From Writing Code to Orchestrating AI Agents
94% of engineering leaders report agentic AI skills gaps. Here's what the tech lead role actually looks like in 2026 — and the skills you need to stay relevant.
Debugging with AI: When AI-Generated Code Breaks in Production
The series covered how to prevent bugs. This post covers what to do when they slip through. How to use AI as a debugging partner without chasing its hallucinations.
When Five Developers Use AI on the Same Codebase: The Team Collaboration Challenge
AI works differently for every developer. How to establish team conventions, shared context, consistent quality, and avoid the 'five different architectures' problem.
The Autonomous Software Team Field Guide: From Manual Workflows to AI-Driven Development with NanoClaw
A practical, hands-on guide to automating Developer, QC, and Tech Lead workflows across three maturity levels — Manual, Agentic (Claude Code), and Fully Autonomous (NanoClaw). With mermaid diagrams, real configs, BDD examples, and step-by-step instructions you can implement today.
ClawTeam Deep Dive: Running a Multi-Agent Dev Team on Your Personal Laptop
A comprehensive guide to ClawTeam — the open-source Agent Swarm Intelligence framework. Learn how to set up Dev, QC, and Tech Lead agents on a single laptop, handle security and performance concerns, prevent AI quality issues, and run a solo complex project with production-grade workflows.
English Upgrade #10: Code Review Communication
How to write PR comments that improve code without hurting feelings. Giving feedback, receiving criticism, and maintaining team dynamics — all through async written English.
AI Phase 2: From Chat to Agents — The Shift That Changes Everything
Most people are stuck in Phase 1 of AI — asking questions and doing work themselves. Phase 2 is Agents: you set a goal, the agent delivers results. Here's the complete breakdown of what changed, how it works, and why it matters.
English Upgrade #9: Dev vs PM — Saying No Without Losing Your Job
How to push back on unrealistic deadlines, negotiate scope, and manage expectations with PMs — in professional English that builds trust, not tension.
Umbraco AI Migration Playbook: AI Agents, ADRs & Team Workflow
How to integrate AI assistants into your Umbraco migration workflow: prompt patterns for Umbraco-specific tasks, using Umbraco 17's built-in Developer MCP, Architectural Decision Records (ADRs) as migration governance, and the AI Champion model for tech teams.
Umbraco AI Migration Playbook: Testing, QA & Go-Live Strategy
The final leg: a layered testing strategy for Umbraco 17 migrations, from unit tests on converted services to content rendering tests, CI-integrated smoke tests, UAT checklists, and the 72-hour go-live runbook that keeps migrations from becoming crises.
Agentic Coding & Spec-Driven Development: A Technical Lead's Field Guide
How Spec-Driven Development (SDD) transforms agentic AI from a vibe-coding toy into a production-ready engineering discipline. Real project experiences, frameworks, tooling, and hard lessons from leading teams with Claude Code, Kiro, and BMAD.
How to Talk to AI: Prompt Patterns That Actually Work
The series covered WHAT to do with AI. This post covers HOW to communicate with it. Prompt patterns that produce usable code, not impressive demos.
Appium Mobile Automation: The Complete Guide for QC Testers in 2026
A practical, hands-on guide to Appium 2.x mobile test automation. From zero setup to CI/CD pipelines -- everything a manual QC tester needs to start automating mobile tests on Android and iOS.
English Upgrade #8: Dev vs QC — Bug Discussions Without Ego
How to discuss bugs, defend your code professionally, accept valid feedback, and collaborate with QA — in clean, professional English.
Playwright CLI: The Complete Guide for QA Testers in 2026
A practical guide to Microsoft's Playwright CLI for QA testers transitioning from manual to automated testing. Learn why CLI beats MCP, setup from scratch, core commands, and real-world workflows.
AI Agent Security in 2026: Protecting Client Projects When Using Claude Code, OpenClaw & Agentic AI
Deep dive into AI agent security threats in 2026. Covers prompt injection, data exfiltration, OpenClaw vulnerabilities, Claude Code hardening, and a complete defense architecture for teams deploying AI agents in client projects.
The AI Trust Boundary: What to Never Delegate and What to Always Verify
AI doesn't understand threat models. How to define your trust boundary, handle security-critical code, and build guardrails that protect your users.
English Upgrade #7: Dev vs BA — Requirement Debates
How to push back on vague requirements, negotiate scope with BAs, and have productive requirement discussions — all in professional English.
English Upgrade #20: Remote Work and Async Communication
The complete guide to asynchronous English communication — Slack etiquette, async standups, RFC writing, and managing distributed teams across time zones.
Multi-Agent Deep Dive Part 6: Scaling Patterns & Production — Step Functions, Auto-Scaling & Cost Optimization
Production scaling patterns for multi-agent AI systems. Covers AWS Step Functions orchestration, Lambda auto-scaling, Bedrock provisioned throughput, cost optimization strategies, and operational runbooks.
Multi-Agent Deep Dive Part 4: Security Architecture — IAM, Prompt Injection Defense & Audit Logging
Production security patterns for multi-agent AI systems. Covers IAM least privilege per agent, prompt injection defense, input sanitization, output validation, audit logging, secrets management, and compliance requirements.
Multi-Agent Deep Dive Part 5: CI/CD Pipeline for Agents — LangSmith Eval, Prompt Versioning & Canary Deploys
Production CI/CD patterns for multi-agent AI systems. Covers LangSmith evaluation pipelines, prompt versioning with S3, canary deployments, regression testing, cost monitoring gates, and automated rollback strategies.
Multi-Agent Deep Dive Part 1: Designing the Orchestrator Agent — Brain Architecture, Routing Logic & Prompt Engineering
Implementation-ready guide to building the Brain agent in a multi-agent system. Covers LangGraph supervisor patterns, Command API routing, context injection, prompt engineering, state schema design, and cost-optimized model selection.
Multi-Agent Deep Dive Part 3: State Management & Data Layer — DynamoDB Checkpointing, S3 State & Athena Integration
Production implementation of state management for multi-agent systems. Covers DynamoDB checkpointing with LangGraph, S3 for large payloads, Athena query patterns, conversation memory, and state recovery strategies.
Multi-Agent Deep Dive Part 2: Worker Agents & Tool Design — SQL Writer, Data Processor & Formatter Implementation
Complete implementation guide for worker agents in a multi-agent system. Covers tool design patterns, prompt engineering for cheap models, input/output contracts, error handling, and cost optimization with Haiku and DeepSeek.
NanoClaw Complete Guide 2026: Install, Setup & Real Workflows for Every Role
Step-by-step guide to install NanoClaw on macOS, WSL Windows, and Proxmox. Includes real workflows for developers, QA engineers, marketers, and business users. Built on Claude AI.
Pipecat Voice Agent in Production: Complete Guide to Issues, Optimization & Scalable Architecture
Deep-dive into 26+ real production issues with Pipecat voice agents — latency, audio quality, memory leaks, VAD problems, and pipeline freezes — plus battle-tested optimization strategies for building scalable voice AI systems.
Building Scalable Multi-Agent Systems with LangGraph: A Technical Lead's Complete Architecture Guide
Production-tested architecture for multi-agent AI systems using LangGraph on AWS. Brain/Worker cost optimization, Step Functions orchestration, DynamoDB checkpointing, CI/CD pipelines, and real-world cost modeling that achieves 5-10x savings.
English Upgrade #19: Hiring and Interviewing Candidates
How to run technical interviews, evaluate candidates, and give structured hiring feedback — all in professional, legally safe English.
English Upgrade #6: Retros — Giving Feedback and Improving Your Team
How to run retrospectives, suggest improvements, and talk about team productivity in English. Blameless language, action items, and phrases for difficult conversations.
AI Skills Complete Guide: Claude Code, GitHub Copilot & Antigravity
The definitive guide to building AI Skills across Claude Code, GitHub Copilot, and Google Antigravity. Architecture deep-dive, SKILL.md standard, diagrams, practical examples, and best practices.
English Upgrade #18: Cross-Cultural Communication
Working with international teams — understanding cultural communication styles, avoiding misunderstandings, and adapting your English for global collaboration.
English Upgrade #5: Sprint Review and Demo Day
How to present your team's work, narrate a live demo, and handle stakeholder feedback — all in clear, confident English. Scripts and phrases for non-native tech leads.
Nanoclaw for Home Assistant: The Ultimate Setup & Optimization Guide
Learn how to set up Nanoclaw as your personal AI home assistant across WhatsApp, Telegram, and Discord — plus top optimization tips to get the most out of it.
Umbraco AI Migration Playbook: Code, Content & Templates Modernization
Moving past the data migration to the real work: modernizing your Umbraco codebase to .NET 10, rebuilding templates with the current IPublishedContent API, restructuring content types with Block List, and applying Clean Architecture patterns to Umbraco projects.
English Upgrade #4: Refinement Meetings — Asking the Right Questions
The English phrases that prevent bad sprints. How to clarify requirements, challenge assumptions, and ask smart questions in refinement meetings.
Umbraco AI Migration Playbook: The Marketing OS Framework — Scaling Across Multiple Sites
When you're managing 10, 20, or 50 Umbraco sites, individual project economics don't work. The Marketing OS framework: shared NuGet packages, shared document type libraries, AI-accelerated delivery, and how to reduce per-site migration cost by 50–70%.
Testing Code You Didn't Write: A Developer's Guide to Verifying AI Output
AI-generated code needs different testing strategies. How to write tests that catch what AI gets wrong, use AI to generate test cases, and build a testing workflow for AI-assisted development.
English Upgrade #17: 1-on-1 Meetings — With Your Boss and Your Team
How to run productive 1-on-1s as a tech lead — upward with your manager and downward with your reports. Career discussions, feedback, and difficult conversations in English.
English Upgrade #3: Sprint Planning — Estimating and Pushing Back
How to discuss estimates, commit to scope, and push back on overloaded sprints — all in clear, professional English. Templates and phrases for non-native speakers.
The AI-Assisted Development Playbook: Honest Lessons and What Comes Next
Everything we learned building BuildRight with AI, the mistakes we'd make again, the ones we wouldn't, and where AI-assisted development is heading.
English Upgrade #2: The Daily Standup — 90 Seconds That Matter
How to give a clear, confident standup update in English without rambling or freezing. Templates, phrases, and practice routines for non-native speakers.
AI-Powered Migration Playbook: Lessons Learned — What We'd Do Differently
The final retrospective. Ten anti-patterns to avoid, what AI genuinely can't do, what surprised us, and where AI-assisted migration is heading next.
English Upgrade #1: Writing Emails That Actually Get Replies
Professional email patterns for busy tech leads. Subject lines that get opened, follow-ups that don't annoy, and the exact phrases that make people respond faster.
English Upgrade #16: The Busy Person's Self-Study System
A 15-minute daily English practice routine for tech leads. Shadowing, AI practice, and micro-exercises you can do between meetings — no textbooks required.
SEO in Action — Step-by-Step Strategies for luonghongthuan.com, inkviet.com & cublearn.app
Real-world SEO implementation for three domains: a tech portfolio blog, a Vietnamese story platform, and a learning app. Complete domain-specific audits, keyword strategies, content plans, AI visibility optimization, and a cross-domain synergy strategy. Part 13 of the SEO Leader's Complete Playbook.
Umbraco AI Migration Playbook: Migration Paths from v7, v8 & v13 to v17
The step-by-step technical guide to migrating from Umbraco 7, 8, or 13 to Umbraco 17 LTS. Covering uSync Migrations, Nested Content to Block List conversion, Umbraco Deploy migrators, and how AI assists at each step.
Production Voice AI for Research at Scale: Deployment and Go-Live — From Docker Compose to 200 Concurrent Sessions
The complete deployment guide: Docker multi-stage builds, Kubernetes orchestration, CI/CD with GitHub Actions, zero-downtime deploys, go-live checklist, production monitoring with Prometheus/Grafana, and the operational runbook that keeps voice AI running at scale.
When AI Writes Beautiful Code That Doesn't Fit: The Architecture Trap
AI can generate impressive code that completely ignores your architecture. How to provide architectural context, enforce patterns, and know when to override AI suggestions.
English Upgrade #15: Career English — Salary, Promotions, and Job Moves
The English you need for career conversations: negotiating salary, asking for promotions, writing LinkedIn profiles, and interviewing — phrases that directly impact your income.
The Complete SEO Best Practices Checklist — Your Team's Daily Reference
The ultimate SEO checklist for 2026. Every best practice from technical SEO, on-page, off-page, content strategy, Core Web Vitals, AI optimization, and analytics — consolidated into a single actionable reference. Includes 30/60/90-day implementation plans. Part 12 of the SEO Leader's Complete Playbook.
AI-Powered Migration Playbook: Measuring Success — ROI, Quality, and Velocity
How to prove AI-assisted migration is actually working. The metrics that matter to developers, tech leads, and bosses. Real numbers, dashboard templates, and what to do when the data looks bad.
English Upgrade #14: Incidents and Post-Mortems
High-pressure communication during production incidents — status updates, blameless post-mortems, and the English phrases that keep everyone informed.
Building KidSpark: Monetization, Growth, and the Road Ahead
The final chapter. Ethical monetization for kids apps, growth strategies that don't exploit children, and honest lessons from building KidSpark from idea to production.
SEO Analytics & Reporting — Measuring What Actually Matters
Master SEO analytics and reporting in 2026. Build actionable dashboards with GA4 and Google Search Console. Track the right KPIs, calculate SEO ROI, and create reports that stakeholders actually read. Part 11 of the SEO Leader's Complete Playbook.
Production Voice AI for Research at Scale: Multi-Language Voice AI — When Your Agent Needs to Think in Japanese
Multi-language voice AI for research: language detection, provider routing (Gemini Live for 30+ languages, OpenAI Realtime for English), locale-aware VAD tuning, i18n prompt packs, and cross-language analysis pipelines.
Beyond 'We're Faster Now': How to Actually Measure AI's Impact on Your Development Process
Gut feelings aren't metrics. How to measure AI's real impact on speed, quality, and team satisfaction — with honest numbers from the BuildRight project.
AI Workflow Mastery: Real-World Case Studies & Playbooks
5 detailed case studies showing how different teams implemented AI workflows with Claude Skills, Gemini Gems, and NotebookLM. Includes step-by-step playbooks, metrics, and lessons learned.
Local SEO & International SEO — Ranking Everywhere
Complete guide to local SEO and international SEO in 2026. Master Google Business Profile optimization, local citations, NAP consistency, review management, hreflang implementation, geo-targeting, and multi-region site architecture. Part 10 of the SEO Leader's Complete Playbook.
Tech Coffee Break #12: From Senior Dev to Tech Lead — What Changes?
The career leap from individual contributor to technical leader. Two tech leads discuss what nobody tells you about leadership, communication, decision-making, and why writing code becomes the least important part of your job.
AI-Powered Migration Playbook: The Human Side — Team Dynamics and Roles in AI-Assisted Migration
The part nobody talks about: teaching a junior developer to use AI effectively, managing team resistance, earning client trust, and keeping the boss updated. Migration is as much people as it is code.
AI Workflow Mastery: AI Workflows for Agile Teams
Practical AI-powered workflows for every Agile ceremony: sprint planning, daily standups, retrospectives, backlog refinement. Includes skill templates and real-world implementation guide.
Building KidSpark: Production — Analytics, Monitoring, Crash Reporting, and Iteration
Launch day is just the beginning. Privacy-compliant analytics, crash reporting that respects child data, and a feedback loop that actually improves the product.
The Complete Best Practices Checklist for Automation, AI, and Quality
The ultimate reference for test automation with AI. Comprehensive checklists covering mindset, Playwright setup, Page Objects, BDD, AI tools, prompt engineering, team collaboration, metrics, and common pitfalls. Part 10 of the QC team's guide to automation with AI.
AI-Powered SEO Workflow — Tools, Automation, and Prompt Engineering
Supercharge your SEO with AI tools and automation. Complete guide to using AI for keyword research, content optimization, link building, technical SEO, reporting, and prompt engineering for SEO teams. Part 9 of the SEO Leader's Complete Playbook.
Tech Coffee Break #11: Event-Driven, CQRS, Saga — Buzz or Useful?
Architecture buzzwords demolished and rebuilt. Two tech leads explain when event-driven architecture, CQRS, and the Saga pattern are genuinely useful — and when they're just resume padding. Pizza delivery analogies included.
Building a Mobile App with Umbraco 17 as Your Backend: React Native, Flutter, and .NET MAUI
Umbraco isn't just for websites. Here's how to use the Content Delivery API to power native mobile apps with React Native, Flutter, or .NET MAUI — with offline support, push notifications, and content syncing.
Production Voice AI for Research at Scale: What Breaks at 200 Concurrent Sessions
Scaling from 10 sessions/week to 200 concurrent. The enrichment bottleneck (30,000 API calls), session recovery for dropped WebRTC connections, provider failover, and the operational metrics that keep it all visible.
The 40% That Nobody Wants to Do: Why Planning Before Prompting Changes Everything
Most developers skip straight to 'generate code.' The teams that get real value from AI spend 40% of their time planning before writing a single prompt.
AI Workflow Mastery: Team Skill Libraries & Governance
How to build, maintain, and govern shared AI skill libraries for teams. Covers skill catalogs, onboarding workflows, quality gates, and practical governance frameworks.
English for Tech Leads Part 11: Client Interviews, New Projects & Bidding
Essential English frameworks for winning new projects: first client meetings, project bid presentations, technical interviews, proposal writing, and handling tough evaluation questions.
Measuring and Improving Quality — Metrics That Actually Matter
Move beyond vanity metrics. Learn to track test coverage, defect escape rate, flakiness, and automation ROI. Build a quality dashboard and run retrospectives that drive real improvement. Part 9 of the QC team's guide to automation with AI.
SEO for AI — How to Get Cited by ChatGPT, Google AI Overviews, and Perplexity
The definitive guide to Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) in 2026. Learn how to get your content cited by ChatGPT, appear in Google AI Overviews, and be recommended by Perplexity and Claude. Part 8 of the SEO Leader's Complete Playbook.
Tech Coffee Break #10: The System Design Interview — Let's Practice
A mock system design interview between two tech leads. Learn the framework, the mistakes, and the thinking process that interviewers actually look for — in plain conversational English.
Umbraco AI Migration Playbook: AI-Assisted Assessment & Estimation
Before you write a single line of migration code, you need to know what you have. How to use AI to audit a legacy Umbraco project, score complexity, estimate effort, and produce the assessment document that drives every decision that follows.
What If You Don't Want Next.js? Five Alternative Frontends for Headless Umbraco 17
Not every team wants React. Here are five production-ready alternatives for building marketing websites with headless Umbraco 17 — from Astro and Nuxt to SvelteKit, .NET Razor, and even plain HTML.
AI-Powered Migration Playbook: WPF to Web with React/Next.js — Choosing Your Path with AI
How to migrate a WPF desktop application to a web app using React and Next.js, with AI accelerating the hardest parts. MVVM to component state, XAML to JSX, and the strangler fig pattern.
AI Workflow Mastery: Cross-Tool Comparison & Combo Workflows
Detailed comparison of Claude Skills vs Gemini Gems vs NotebookLM, plus 4 powerful combo workflows that chain all three tools together for maximum output.
English for Tech Leads Part 10: Build a Daily Lesson Generator App
Full blueprint for building a web app that generates daily English lessons, tracks your progress, and unlocks the next day's content only after completion. Includes Next.js code, AI integration, and assessment system.
Building KidSpark: CI/CD Pipeline and App Store Submission
Mobile CI/CD is not web CI/CD. Code signing, provisioning profiles, app bundles, and two very different app store review processes await. Here's how we automated the painful parts.
Sharing the Work — How Dev and QC Teams Collaborate on Test Automation
A practical guide to Dev-QC collaboration on test automation: task splitting, repo structure, code reviews, PR workflows, handling broken tests, and building a Definition of Done. Part 8 of the QC team's guide to automation with AI.
Advanced Keyword Research — From Search Intent to Semantic Strategy
Master keyword research for 2026. Learn to find high-value keywords, classify search intent, build semantic keyword clusters, analyze competitor gaps, and target SERP features. Includes step-by-step process with free and paid tools. Part 7 of the SEO Leader's Complete Playbook.
Tech Coffee Break #9: A Hacker Walks Into Your API...
Web security explained without the paranoia — mostly. Two tech leads discuss OWASP Top 10, authentication patterns, secrets management, and why your password requirements are probably wrong.
Shipping the Template: Multi-Tenant Onboarding, Cost Savings, and the Honest Retrospective
Turning MarketingOS into a reusable template: new client onboarding in under an hour, multi-tenant content management, cost analysis showing 70% reduction per site, lessons learned, and what I'd do differently.
Production Voice AI for Research at Scale: The Real Cost
Real-time per-minute cost tracking, provider comparison (OpenAI Realtime ~$0.053/min vs Gemini Live ~$0.029/min), budget enforcement with soft/hard limits, and the self-hosting math that saves 90% on transport.
Building a Claude Agent Team: Skills, Collaboration & Delivering Products from Idea to Go-Live (Part 13)
How to build a coordinated Claude agent team: defining agent skills, assigning responsibilities, orchestrating multi-agent workflows, and collaborating across agents to deliver a real software product from idea to production.
AI Workflow Mastery: Enterprise Workflow Architecture — For Professional Teams
Advanced guide to building AI workflow systems at scale: skill libraries, team governance, quality assurance, security compliance, and ROI measurement. For team leads and enterprise architects.
English for Tech Leads Part 9: 30 Days of Daily Practice
Day-by-day practice exercises covering real tech lead scenarios: standup updates, sprint reviews, architecture discussions, production incidents, and client presentations.
The QC Tester's Prompt Engineering Playbook
5 proven prompt patterns for generating high-quality Playwright tests with AI. Learn to control AI output, review generated code, avoid common mistakes, and build reusable prompt templates. Part 7 of the QC team's guide to automation with AI.
Content Strategy for SEO — Topic Clusters, Pillar Pages, and Content That Ranks
Build an SEO content strategy that dominates search results. Learn the pillar-cluster model, content gap analysis, content calendars, refresh strategies, and how to create content that ranks for hundreds of keywords. Part 6 of the SEO Leader's Complete Playbook.
Tech Coffee Break #8: My Code Works On My Machine! Now What?
CI/CD explained without the DevOps jargon. Two tech leads discuss how code actually gets from your laptop to production — pipelines, testing strategies, and deployment techniques that won't ruin your weekend.
Self-Hosted Ubuntu, AWS, or Azure: Three Ways to Deploy MarketingOS and When to Use Each
Deploying MarketingOS three ways: self-hosted Ubuntu with Docker Compose and Nginx, AWS with Fargate/S3/CloudFront, and Azure with App Service/Blob Storage/CDN. Infrastructure as Code with Terraform, monitoring, and cost comparison.
I Shipped AI-Generated Code Without Reviewing It. Here's What Broke.
The review phase is 40% of the workflow for a reason. A real story about shipping too fast, the review checklist that prevents it, and how to build review habits that scale.
AI-Powered Migration Playbook: .NET Framework 4.6 → .NET 10 with AI — Technical Deep-Dive
The actual steps to migrate a .NET Framework 4.6 application to .NET 10 using AI. Includes project file conversion, API replacements, prompt patterns, token limit strategies, and the 80% coverage plan.
The Full AI Team Playbook: Tools, Processes & Delivery Excellence
The complete AI-Powered Software Teams playbook: the full delivery pipeline, team configuration principles, toolstack recommendations, the 5 non-negotiable human checkpoints, and what it means to lead and work in an AI-augmented software team.
AI Workflow Mastery: Role-Specific Workflows — From Business to Creative
4 complete AI workflows tailored for business owners, developers, writers, and content creators. Step-by-step playbooks using Claude Skills, Gemini Gems, and NotebookLM together.
English for Tech Leads Part 8: The 15-Minute Daily Routine
A practical, sustainable daily English practice schedule for busy technical leaders. Integrates everything from the series into one maintainable routine.
Building KidSpark: Testing Strategy for Mobile Kids Apps
Standard testing isn't enough for kids apps. Motor skill variations, accidental input, old tablets, and accessibility requirements demand a testing strategy built specifically for young users.
Using AI to Write Tests — Claude, GitHub Copilot, and Antigravity
A hands-on comparison of three AI tools for test automation. See how Claude Code with Playwright MCP, GitHub Copilot, and Antigravity each approach the same test scenario, with setup guides and decision matrix. Part 6 of the QC team's guide to automation with AI.
Core Web Vitals & PageSpeed — Getting a Perfect Score
The definitive guide to Core Web Vitals optimization in 2026. Step-by-step techniques for LCP, INP, and CLS. Image optimization, JavaScript reduction, CDN setup, and how to take your PageSpeed Insights score from 40 to 90+. Part 5 of the SEO Leader's Complete Playbook.
Tech Coffee Break #7: SQL or NoSQL? The Answer Is Always 'It Depends'
PostgreSQL, MongoDB, Redis, DynamoDB — when do you use what? Two tech leads break it down with filing cabinet analogies, real use cases, and zero religious wars.
Containerizing Umbraco and Next.js: Multi-Stage Docker Builds, Docker Compose, and a CI/CD Pipeline That Builds Confidence
Dockerizing MarketingOS with multi-stage builds for both Umbraco and Next.js, Docker Compose for the full stack, GitHub Actions CI/CD with contract tests, automated deployments, and environment promotion.
The Voice AI Interview Playbook: Multi-Provider Support — OpenAI Realtime, Bedrock Nova, Grok, and the Adapter Pattern
The final piece: supporting multiple voice AI providers behind a clean adapter interface. Provider routing, circuit breakers, context transfer during failover, and future-proofing your architecture.
Production Voice AI for Research at Scale: From Recording to Insight
The 3-stage automatic pipeline that turns raw interview recordings into enriched, queryable research data in 3-7 minutes. Transcription, enrichment, analysis — with the transcript batching trick that cut DB load by 80%.
AI Team Rituals: Standups, Refinements, Retros & Reviews Redesigned
How AI transforms every team ceremony: async-first standups with AI summaries, AI-prepared refinements, structured retrospectives with pattern detection, and sprint reviews where AI generates the demo context. Plus the human connections that meetings are really about.
AI Workflow Mastery: NotebookLM — Turning Documents into Knowledge
The definitive guide to Google NotebookLM: Audio Overviews, Mind Maps, Deep Research, and 5 practical workflows for business owners, developers, writers, and content creators.
English for Tech Leads Part 7: Building a Family English Learning App
A complete technical blueprint for building a parent-child English learning application. Covers React Native/Expo mobile and Next.js web implementations, AI integration, and gamification.
BDD with Cucumber and Playwright — Writing Tests in Plain English
How to write automated tests in Given/When/Then syntax that anyone can read. Set up Cucumber with Playwright, write feature files, build step definitions, and create living documentation. Part 5 of the QC team's guide to automation with AI.
Off-Page SEO & Link Building — The Authority Playbook
The complete off-page SEO and link building guide for 2026. Master backlink strategies, digital PR, guest posting, brand mentions, competitor analysis, and building authority signals that Google and AI platforms trust. Part 4 of the SEO Leader's Complete Playbook.
Tech Coffee Break #6: Cool Demo, But Will It Work Monday Morning?
Putting AI into production is nothing like building a demo. Two tech leads discuss costs, hallucinations, latency, guard rails, and what actually breaks when real users hit your AI features.
Umbraco AI Migration Playbook: Why Your CMS Needs to Move — Now
Umbraco 8 is already end-of-life. Umbraco 13 expires in December 2026. Here's the real cost of staying put, what Umbraco 17 delivers, and how AI changes the economics of every migration you've been delaying.
Testing a Headless CMS Stack: xUnit for Umbraco, Jest and Playwright for Next.js, and Contract Tests That Save Your Weekends
Comprehensive testing for MarketingOS: xUnit unit/integration tests for the Umbraco backend, Jest component tests and Playwright E2E for Next.js, API contract testing with Pact, and visual regression testing.
The Voice AI Interview Playbook: Cost Optimization — From $0.14/min to $0.03/min Without Sacrificing Quality
The real cost of AI voice interviews, broken down per minute. Managed vs self-hosted economics, the three tipping points, and how to get from $3.45 per interview to under $1.00.
AI-Powered Migration Playbook: The AI Migration Workflow — A Framework for Teams
A five-phase workflow for AI-assisted legacy migration. From assessment to ship, with tool recommendations, team role definitions, and the prompt patterns that actually work.
The AI DevOps & Platform Engineer: CI/CD, Observability & Platform Automation in the AI Era
How AI transforms the DevOps/Platform Engineer role: AI-assisted pipeline generation, incident diagnosis, capacity planning, GitOps automation, and the operational judgment that keeps systems running and teams unblocked.
AI Workflow Mastery: Gemini Gems — Building Custom AI Assistants
Master Gemini Gems: the Four Pillars framework, Knowledge Files strategy, 5 production-ready Gems for business, marketing, dev, and creative work. Step-by-step instructions.
English for Tech Leads Part 6: AI-Powered English Learning
How to use Claude, ChatGPT, and other AI tools as your personal English tutor. Prompt templates, role-play scenarios, and daily AI workflows for busy professionals.
Building KidSpark: Child Safety, Privacy, and Compliance — COPPA, GDPR-K, and App Store Rules
COPPA fines start at $50,000 per violation. GDPR penalties can reach 4% of revenue. This isn't optional. Here's how we built KidSpark to be compliant from day one.
Page Objects, Fixtures, and Real-World Playwright Patterns
Level up from basic tests to maintainable automation with Page Object Model, custom fixtures, data-driven testing, network mocking, and debugging strategies. Part 4 of the QC team's guide to automation with AI.
On-Page SEO Mastery — From Title Tags to Topical Authority
The complete on-page SEO guide for 2026. Master title tags, meta descriptions, header hierarchy, content optimization, internal linking, semantic HTML, and featured snippet strategies. Part 3 of the SEO Leader's Complete Playbook.
Tech Coffee Break #5: AI Is Just Math and Guessing, Right?
Machine learning, LLMs, embeddings, and RAG — explained without hype. Two tech leads break down what AI actually does, using analogies about libraries, pattern matching, and really smart parrots.
Gemini AI for Marketing Content: Generation, Translation, SEO Optimization, and the Content Workflow That Replaced a Copywriter
Integrating Google Gemini API with Umbraco for AI-powered content generation, multi-language translation, SEO meta optimization, and a content review workflow that keeps humans in the loop.
The Voice AI Interview Playbook: Scaling to Thousands — Architecture for Concurrent Voice Sessions
From 10 concurrent interviews to 10,000. LiveKit SFU mesh, stateless agent workers, Kubernetes auto-scaling, regional deployment, and the infrastructure patterns that handle hiring season surges.
Production Voice AI for Research at Scale: Multi-Phase State Machines
Research interviews follow structured protocols with distinct phases. How to build an LLM-driven state machine with next_phase() function calling and dynamic instruction swapping via set_chat_ctx().
From Blank Repo to Landing Page in 90 Minutes: Your First AI-Assisted Quick Win
A step-by-step walkthrough of building a landing page with AI assistance, demonstrating the 40-40-20 workflow in the simplest possible context.
The AI Security Engineer: Threat Modelling, SAST/DAST & Secure SDLC in the AI Era
How AI transforms the Security Engineer role: AI-assisted threat modelling, automated SAST/DAST pipelines, dependency scanning, security policy generation, and the human security judgment that keeps systems and users safe.
AI Workflow Mastery: Claude Skills — The Complete A-to-Z Guide
Everything you need to know about Claude Skills: structure, the P-T-C-F framework, 5 ready-to-use skills for developers, marketers, and writers. Copy-paste code included.
Building a Real-Time Interview Voice System with Azure Foundry Voice Live & Next.js
Why Azure Foundry Voice Live changes everything for real-time voice AI. Understand the architecture, compare alternatives, and see how to build an interview system that responds in under 200ms.
Audio Quality: Codecs, Noise Suppression & Natural Conversation
Low latency is useless if the voice sounds robotic. Learn how to configure audio codecs, enable noise suppression, handle natural interruptions, and choose the right AI voice persona for an interview system.
Debugging & Common Issues with Azure Voice Live
Things will break. This is your complete troubleshooting guide for Azure Voice Live in Next.js: WebSocket drops, choppy audio, VAD false positives, session timeouts, quota limits, and every other issue you'll encounter.
Deploy, Scale & Pricing for Azure Voice Live in Production
Your demo works. Now make it production-ready for 1,000 concurrent interviews. Full guide to deployment options, WebSocket scaling, Azure pricing breakdown, cost estimations, and monitoring for Azure Voice Live.
Minimizing Latency: Architecture Patterns & Tuning for Azure Voice Live
Every millisecond counts in a voice interview. Learn how to architect your Azure Voice Live system for sub-150ms end-to-end latency through region selection, chunk tuning, buffer strategies, and WebSocket optimization.
Next.js Integration: WebSocket & Audio Streaming for Azure Voice Live
The complete, production-ready code for integrating Azure Foundry Voice Live into a Next.js app. Full WebSocket proxy, useVoiceLive hook, audio capture and playback — every line explained.
Project Setup & Azure Configuration for Voice Live
From zero to a working Azure Foundry Voice Live connection in under 30 minutes. Covers resource provisioning, region selection for minimum latency, authentication, and your Next.js project scaffold.
Testing Voice Live & Transcript Analysis: Post-Interview Reports (Part 8 — Bonus)
Bonus Part 8 — Testing real-time voice AI is notoriously hard. Learn strategies for mocking, latency benchmarking, and LLM-as-judge evaluation. Then build a transcript analysis system that generates a scored interview report with specific action items.
English for Tech Leads Part 5: Presentation & Public Speaking
How to present new technology to a crowd when English isn't your first language. Structure, delivery techniques, handling Q&A, and practice methods.
Your First Playwright Test — A Step-by-Step Guide for Manual Testers
A zero-assumption walkthrough for manual testers writing their first automated test. Install Node.js, set up Playwright, understand locators, write real tests, and debug failures. Part 3 of the QC team's guide to automation with AI.
The Complete Technical SEO Audit — A 100-Point Checklist
The definitive technical SEO audit checklist for 2026. Covers crawlability, indexation, site architecture, structured data, Core Web Vitals, mobile-first indexing, and AI-readiness. Part 2 of the SEO Leader's Complete Playbook.
Tech Coffee Break #4: Containers Are Just... Fancy Zip Files?
Docker and Kubernetes explained like you're having coffee with a friend. No jargon walls — just real analogies about shipping containers, apartments, and why 'works on my machine' is everyone's least favorite sentence.
SEO That Actually Ranks: JSON-LD, Metadata, Sitemaps, and Core Web Vitals in a Headless CMS
Implementing production-grade SEO for marketing websites: dynamic metadata from Umbraco, JSON-LD structured data, XML sitemaps, robots.txt, Open Graph, Core Web Vitals optimization, and Lighthouse 100.
The Voice AI Interview Playbook: Recording, Transcription, and Compliance — GDPR, HIPAA, and Getting It Right
Recording interviews is easy. Doing it legally isn't. LiveKit Egress, real-time transcription, GDPR consent flows, HIPAA encryption requirements, and the compliance checklist you need before go-live.
AI Hallucination: The Complete Guide to Mitigating Fabrication in Claude, Gemini, Copilot & Cursor
What is AI hallucination? Why does AI invent facts? Learn detailed strategies for minimizing hallucinations in Claude, Gemini, Copilot, and Cursor — from prompt engineering to RAG, grounding, and verification loops.
AI-Powered Migration Playbook: Why AI Changes Everything About Legacy Migration
Two migration projects, a small team, a cost-conscious boss, and AI as the equalizer. Here's what the data says — and what nobody tells you about migrating legacy systems in 2025.
The AI Technical Architect: Infrastructure, Security & Non-Functionals in the AI Era
How AI transforms the Technical Architect role: AI-assisted IaC generation, cost modelling, capacity planning, non-functional requirements analysis, disaster recovery planning, and the platform judgment that only experience provides.
AI Workflow Mastery: Claude Skills, Gemini Gems & NotebookLM — The Complete Guide
A comprehensive guide to the 3 most powerful AI workflow tools available today. Whether you're a business owner, developer, writer, or content creator — here's how to work with AI 10x more effectively.
English for Tech Leads Part 4: Explaining Complex Problems
Templates, analogy patterns, and the PREP framework for explaining technical problems to clients, stakeholders, and non-technical audiences in clear English.
Building KidSpark: Core Features — Lessons, Quizzes, Progress Tracking, and Gamification
The features that make a kids learning app actually work: adaptive lessons, interactive quizzes, offline progress tracking, and gamification that motivates without manipulating.
How to Plan Automation for Any Project — A Practical Framework
A step-by-step framework for planning test automation across web apps, APIs, mobile, and legacy systems. Learn what to automate first, how to estimate ROI, and how to present your automation plan to stakeholders. Part 2 of the QC team's guide to automation with AI.
SEO in the AI Era — What Changed, What Didn't, and What You Must Do Now
The complete guide to SEO in 2026. From Google's AI Overviews to E-E-A-T, zero-click searches to multi-platform visibility — everything SEO teams need to know about ranking in the age of AI. Part 1 of the SEO Leader's Complete Playbook.
Tech Coffee Break #3: How Does Netflix Handle 200 Million Users?
A casual conversation about system design at scale. Load balancing, caching, CDNs, and database sharding — explained with pizza delivery analogies you'll actually remember.
Rendering Umbraco Content in Next.js: Server Components, ISR, and a Component Library That Scales
Integrating Next.js 15 App Router with Umbraco's Content Delivery API using Server Components, building a reusable block renderer, ISR for content updates, and a marketing component library.
The Voice AI Interview Playbook: Video Interview Integration — Multimodal Analysis with Gemini Live
Adding video analysis to voice interviews with Gemini Live's multimodal capabilities. Frame sampling, parallel processing, screen sharing for coding interviews, and keeping costs under $0.40 per session.
Production Voice AI for Research at Scale: Zombie Agents, Pre-Warming, and the 5 Bugs That Cost Us Weeks
The production pain points nobody warns you about: zombie agents, metadata latency, pre-warming for 1-2s time-to-first-voice, VAD tuning for research respondents, and provider quirks.
The AI-Assisted Development Playbook: Why Your Workflow Matters More Than Your Tools
AI coding tools promise 10x productivity, but most teams see 1.2x. The difference isn't the tool. It's the workflow.
The AI Quality Engineer: Testing Strategy, Automation & Quality Gates in the AI Era
How AI transforms the QA/QC role: AI-generated test cases, exploratory testing agents, quality gate automation, defect prediction, and the human testing judgment that keeps products safe to ship.
English for Tech Leads Part 3: Meeting Mastery
30 essential phrases, a meeting lifecycle framework, and practical techniques for surviving 2-hour client meetings without your brain shutting down.
From Manual Tester to Automation Engineer — The Mindset Shift
Why automation doesn't replace manual testers — it empowers them. A practical guide to shifting your mindset, leveraging your existing skills, and building a 90-day learning roadmap. Part 1 of the QC team's guide to automation with AI.
Tech Coffee Break #2: REST, GraphQL, gRPC — Which One Do I Pick?
Two tech leads break down API design styles using restaurant analogies. Learn when to use REST, GraphQL, or gRPC — explained in casual English perfect for listening practice.
Content Modeling That Marketers Actually Understand: Umbraco Document Types, Block Lists, and the Delivery API
Designing Umbraco document types for marketing websites, building a block-based page builder with Block List and Block Grid, and exposing everything through the Content Delivery API.
The Voice AI Interview Playbook: Web and Mobile Clients — Building Cross-Platform Voice Experiences
From React to React Native to Flutter. Building cross-platform voice interview clients with LiveKit SDKs, audio visualization, and reconnection strategies.
The AI Developer: From Ticket to PR in an AI-Augmented Workflow
The developer's inner loop in the AI era: AI-assisted ticket analysis, code planning, pair programming, test writing, documentation, and self-review — plus the human judgment that makes AI-generated code safe to ship.
English for Tech Leads Part 2: Pronunciation Survival Kit
The 50 most mispronounced tech words, Vietnamese-specific pronunciation traps, and a 10-minute daily drill that actually fixes your accent.
Building KidSpark: Tech Stack Selection — Flutter, React Native, or Native?
The framework debate almost split the team. Flutter, React Native, or going fully native? Here's our decision matrix and what we learned comparing all three.
Tech Coffee Break #1: So... Why Did Everyone Split Their Apps?
A casual conversation about microservices vs monoliths. Two tech leads explain when to split, when to stay, and why most teams get it wrong — in plain English you can listen to and learn from.
Building a Marketing Website Template with Umbraco 17 & Next.js: Why This Architecture and How to Set It Up
Why headless Umbraco 17 with Next.js is the sweet spot for reusable marketing websites, the architecture decisions behind MarketingOS, and setting up both projects with Clean Architecture on .NET 10.
The Voice AI Interview Playbook: Knowledge Base and RAG — Making Your Voice Agent an Expert
Your voice interviewer is only as good as what it knows. Here's how to build a real-time RAG system that retrieves rubrics, job descriptions, and technical knowledge in under 50ms.
Production Voice AI for Research at Scale: The Architecture Nobody Warns You About
Why research interviews need server-side voice agents, the three-tier architecture, room metadata as configuration transport, and the 100-500ms propagation latency nobody tells you about.
The AI Tech Lead: Code Governance, Standards & Engineering Culture in the AI Era
How AI transforms the Tech Lead role: AI-assisted PR review, standards enforcement, technical debt scoring, architectural governance, and the mentoring and culture-building that only great engineers provide.
GitHub Copilot Workflow: Accelerating an Angular 21 + .NET 10 Team
Practical GitHub Copilot setup for an ecommerce development team. Workspace instructions, custom instructions per task type, Copilot Chat for architecture, and the MCP server for Angular CLI.
CI/CD & Automation: GitHub Actions for Angular 21 + .NET 10 Ecommerce
Production CI/CD pipeline for Angular 21 + .NET 10 ecommerce. GitHub Actions workflows for build, test, API codegen check, Docker, Azure Container Apps deployment, and dependency automation.
Ecommerce Domain Features in Angular 21: Product Catalog, Cart, and Orders
Building the core ecommerce features in Angular 21. Product catalog with SSR, cart state with Signals, multi-step checkout with Reactive Forms, and real-time inventory with SignalR.
Angular 21 + .NET 10 Integration: OpenAPI Codegen, JWT Auth, and Error Handling
Wire Angular 21 to a .NET 10 Minimal API with type-safe Kiota client generation, JWT interceptors, Problem Details error handling, and SignalR real-time updates.
Angular 21 Project Setup: Clean Architecture on the Frontend
Setting up an Angular 21 ecommerce project from scratch. Nx monorepo, feature-based folder structure, ESLint flat config, Vitest, and auto-generated Kiota TypeScript API client from .NET 10.
Angular 21 SSR Storefront: Server-Side Rendering, Route-Level Hydration, and SEO
Build an Angular 21 SSR ecommerce storefront. Route-level rendering modes, hydration with event replay, SEO meta tags, structured data, and performance tuning for Core Web Vitals.
Angular 21 State Management: Signals vs. NgRx Signals vs. Services — The Definitive Guide
When to use Angular Signals, NgRx Signals Store, or plain injectable services in an ecommerce application. Decision matrix, real examples, and why reaching for NgRx too early costs you weeks.
Angular Ecommerce Playbook: The Tech Lead's First Week with Angular 21 and .NET 10
A Technical Lead's honest assessment of Angular 21 (released Nov 2025), .NET 10 LTS, and GitHub Copilot for an Ecommerce project. Architecture decisions, ADR templates, and what nobody tells you on day one.
Tech Lead Playbook: Angular 21 + .NET 10 Ecommerce — Strengths, Weaknesses, and Risk Register
The Tech Lead's honest retrospective on Angular 21 + .NET 10 for an ecommerce project. What this stack does well, where it struggles, the risk register, and practical advice for teams starting this journey.
Testing Angular 21 + .NET 10 Ecommerce: Vitest, xUnit, and Playwright E2E
A practical testing strategy for an Angular 21 + .NET 10 ecommerce project. Unit testing with Vitest and Angular Testing Library, .NET integration tests with xUnit, and Playwright E2E for the critical purchase flow.
Training .NET Developers in Angular 21: Core Concepts That Click
A practical training curriculum for .NET backend developers learning Angular 21. Mapping DI, Signals vs. RxJS, components, and common mistakes — written for someone who already understands clean code.
Angular Code Review Checklist for Tech Leads — 2026 Edition
Post B — A practical Angular 21 code review checklist for Technical Leads. The forbidden patterns, ESLint rules that automate the checklist, and how to give structured feedback without slowing teams down.
@defer Deferrable Views — The Ecommerce Performance Secret
Post F — A deep dive into Angular 21's @defer deferrable views. All trigger conditions, loading/placeholder/error blocks, combining with SSR, and measuring the real impact on LCP, INP, and bundle size.
Angular Monorepo Dev Experience — Hot Reload, Local Libraries, and Team Git Workflows
Post J — Day-to-day developer experience in an Nx Angular monorepo: library watch mode, Nx affected for daily work, trunk-based development, feature flags for parallel work, and avoiding common multi-team blockers.
Nx Module Boundaries — The #1 Architecture Rule for Large Angular Codebases
Post A — How to enforce Nx module boundary rules in Angular 21 to prevent spaghetti imports, protect domain separation, and keep teams independently productive in a monorepo.
OnPush + Zoneless Change Detection — A Complete Field Guide
Post D — Master Angular 21 change detection: why OnPush is required on every component, how zoneless works in a real project, debugging with Angular DevTools, and handling third-party library gotchas.
Angular Ecommerce Performance Playbook — Virtual Scroll, Image Optimization, and Bundle Analysis
Post I — Complete Angular 21 performance guide for ecommerce: CDK virtual scrolling for large product grids, NgOptimizedImage LQIP and fill mode, preconnect hints from SSR, and bundle analysis with nx build.
Angular Routing at Scale — Guards, Resolvers, and Type-Safe Navigation
Post E — Production Angular 21 routing patterns for ecommerce: functional guards with returnUrl, route resolvers for data preloading, type-safe navigation with withComponentInputBinding, and preloading strategies.
Angular Ecommerce Security — XSS, CSP, and Token Refresh Without Race Conditions
Post G — Security patterns every Angular Tech Lead must know for ecommerce. How Angular's sanitizer works, the token refresh race condition and the shareReplay fix, Content Security Policy with SSR, and CSRF protection.
Typed Reactive Forms at Scale — Checkout, Validation, and Multi-Step Wizards
Post H — Angular 21 typed reactive forms in depth: FormGroup<T>, nonNullable, cross-field validators, async validators for slug uniqueness, and managing multi-step checkout flow with Signals.
Angular Signals Deep Dive — linkedSignal, model(), and the effect() Rules
Post C — Beyond the basics of Angular 21 Signals. Learn linkedSignal() for writable derived state, model() for two-way bindings, the effect() golden rule, and takeUntilDestroyed() for RxJS cleanup.
Upgrading Angular in a Production Ecommerce Project — The 6-Month Playbook
Post K — How to upgrade Angular safely in production: understanding the LTS policy, running ng update without surprises, handling NgRx and RxJS breaking changes, the upgrade branch strategy, and when to skip a version.
Claude for Researchers: From Question to Report in 30 Minutes
A hands-on guide for researchers, students, and executives — how to use Claude Web, Desktop, and Code to research any topic, write reports, create slides, and generate spreadsheets. No coding required.
Production-Ready Clean Architecture: Deployment, Monitoring, and the Lessons I'd Share With My Past Self
Taking Kids Learn to production with Docker, CI/CD, OpenTelemetry observability, performance optimization, Native AOT considerations, and an honest retrospective on what worked and what was over-engineered.
English for Tech Leads Part 1: The Roadmap Nobody Gave Me
A practical English improvement roadmap for non-native speaking technical leaders. No textbooks, no grammar drills — just what actually works when you're 40+, busy, and need results.
The Voice AI Interview Playbook: Multi-Role Agents — Interviewer, Coach, and Evaluator Personas
Three personas, one infrastructure. How to build an AI interviewer that asks questions, a coach that gives feedback, and an evaluator that scores fairly — all with system prompts, function calling, and state machines.
The AI Solution Architect: System Design, ADRs & Technology Selection in the AI Era
How AI transforms the Solution Architect role: AI-assisted architecture diagramming, ADR generation, trade-off analysis, technology selection rationale, and the architectural taste that only experience provides.
The Patterns That Actually Make Claude Code 10x: Subagents, Parallel Sessions, and 6 Months of Lessons
Plan-before-code workflow, subagents for parallel tasks, context management strategies, debugging with Claude, the anti-patterns that waste time, and honest lessons from 6 months of daily production use.
Testing Clean Architecture: From Unit Tests to Architecture Enforcement
Testing strategy per layer for Kids Learn. Domain unit tests without mocks, Application tests with NSubstitute, integration tests with Testcontainers, and NetArchTest for enforcing the Dependency Rule.
Building KidSpark: UX/UI Design for Children — Age-Appropriate Interfaces That Actually Work
Children are not small adults. Designing for a 4-year-old and a 12-year-old requires fundamentally different thinking about touch, color, navigation, and cognitive load.
The Voice AI Interview Playbook: Building the Voice Pipeline — STT, LLM, and TTS That Actually Work
Deepgram Nova-3 or Whisper for STT? Gemini Flash or GPT-4o for conversation? ElevenLabs or Cartesia for TTS? Real benchmarks, real costs, and the combinations that actually work in production.
The AI Product Owner & PM: Backlog, Planning & Stakeholder Alignment in the AI Era
How AI transforms the PO and PM roles: AI-assisted backlog scoring, sprint planning, status reporting, risk flagging, release note generation, and stakeholder communication — and the human judgment that keeps it grounded.
Custom Skills and GitHub Workflows: Making Claude Code Do Exactly What Your Team Needs
Writing custom skills with SKILL.md, slash commands, the official and community skill repos, GitHub PR automation with @claude mentions, GitHub Actions integration, and team workflow patterns.
Vertical Slices Inside Clean Architecture: The Best of Both Worlds
Why pure Clean Architecture scatters features across projects, how Vertical Slice Architecture solves this, and the hybrid approach we use in Kids Learn.
The Voice AI Interview Playbook: LiveKit vs. Pipecat vs. Direct — Picking Your Framework
LiveKit gives you WebRTC infrastructure. Pipecat gives you pipeline flexibility. Direct integration gives you simplicity. Here's how to choose for your voice interview platform.
The AI Business Analyst: Requirements, Discovery & User Stories in the AI Era
How AI agents transform the BA role: from manual interview synthesis to structured requirements in hours, AI-assisted user story generation, acceptance criteria validation, and the human skills that stay irreplaceable.
I Connected 12 MCP Servers to Claude Code — Here's Which Ones Actually Matter
What MCP is, how to configure servers in .mcp.json, the top servers by category (GitHub, Playwright, databases, search, design, cloud), performance pitfalls, and why you should limit yourself to 2-3 per project.
EF Core 10, Minimal APIs, and the Outer Layers Nobody Gets Right
Implementing Infrastructure with EF Core 10 (pgvector, JSON columns), AI service integrations, Minimal APIs with Route Groups, authentication, and wiring it all together in Program.cs.
Building KidSpark: Product Design and Feature Prioritization for Kids Ed-Tech
Toan had a 47-feature wishlist. Shipping half of them would have killed KidSpark before launch. Here's how we found the features that actually mattered.
Building a Production Voice AI Interview Agent: S2S-Only with Dynamic Prompts
A practical build guide for a speech-to-speech interview agent using LiveKit MultimodalAgent, OpenAI Realtime, and Gemini Live. Dynamic system prompts, 3 personas, function calling, and provider switching — no cascaded pipeline needed.
The Voice AI Interview Playbook: Cascaded vs. Speech-to-Speech — Choosing Your Pipeline Architecture
The cascaded STT→LLM→TTS pipeline gives you control. Speech-to-speech models give you speed. Here's how to choose — and why the best systems use both.
The AI Team Model: Every Software Role Reimagined
A panoramic view of how AI agents transform every role in a modern software delivery team: BA, PO, PM, SA, Tech Lead, Dev, QA, TA, Security, and DevOps — and what it means for how teams collaborate, decide, and ship.
The Tech Lead's Playbook for AI-Era Quality Engineering
A practical strategy for choosing what to test first, production monitoring with Checkly, knowledge base accuracy tracking, team adoption, and building a quality culture when your app uses AI. Part 4 of the series.
Claude Code in VS Code: The Setup That Replaced 80% of My Stack Overflow Searches
VS Code extension setup, Command Palette workflows, inline diffs, @-mentions for file context, multi-tab conversations, auto-accept mode, Extended Thinking, and the daily habits that actually stick.
CQRS, Wolverine vs MediatR, and the Application Layer That Keeps Your Sanity
Command/Query separation for Kids Learn, pipeline behaviors, the MediatR licensing debate, Wolverine as the modern alternative, and the Repository Pattern in 2026.
The Voice AI Interview Playbook: Why Real-Time Voice Changes Everything
The landscape of real-time voice AI has shifted. Gemini Live, OpenAI Realtime, Bedrock Nova Sonic, and Grok make sub-500ms AI conversations possible. Here's the reference architecture for building a production voice interview platform.
Quality Gates That Actually Catch Bugs Before Production
Building a CI/CD pipeline with GitHub Actions that enforces test coverage, performance budgets, visual regression, and AI response quality checks on every PR. Part 3 of the AI-powered quality engineering series.
AWS Full-Stack Mastery: AI/ML with Bedrock, SageMaker & Personalize
Build AI-powered educational content with Amazon Bedrock, train custom models on SageMaker, implement RAG pipelines with Knowledge Bases for Bedrock, and create personalized learning paths with Amazon Personalize.
AWS Full-Stack Mastery: Backend with API Gateway, Lambda & ECS Fargate
Build the Kids Learn backend with API Gateway HTTP APIs, Lambda functions for CRUD operations, and ECS Fargate for long-running AI inference. Includes VPC networking, cold start optimization, and container deployment.
AWS Full-Stack Mastery: DevOps with CodePipeline, CodeBuild & ECR
Build a complete CI/CD pipeline with CodePipeline, run tests and builds with CodeBuild, manage Docker images with ECR, implement blue/green deployments for ECS Fargate, and automate infrastructure changes with CDK Pipelines.
AWS Full-Stack Mastery: Database with Aurora, DynamoDB & ElastiCache
Aurora Serverless v2 with pgvector for vector search, DynamoDB for session events, ElastiCache Redis for caching, RDS Proxy for connection pooling, and data modeling patterns for educational SaaS.
AWS Full-Stack Mastery: Frontend with Amplify, CloudFront & S3
Deploy Next.js with SSR on AWS Amplify Gen 2, serve static assets from S3 with CloudFront CDN, configure custom domains with ACM certificates, and implement cache invalidation strategies.
AWS Full-Stack Mastery: Infrastructure as Code with AWS CDK
Define your entire AWS infrastructure in TypeScript with CDK v2. VPC design, multi-stack architecture, reusable constructs, and deploying to staging vs production with a single command.
AWS Full-Stack Mastery: Observability with CloudWatch, X-Ray & Cost Explorer
Build comprehensive observability: custom CloudWatch metrics and dashboards, X-Ray distributed tracing across Lambda and Fargate, structured logging with Lambda Powertools, alerting strategies, cost dashboards, and anomaly detection.
AWS Full-Stack Mastery: Production Readiness, Multi-Region & Disaster Recovery
Take Kids Learn production-ready: multi-region Active-Passive with Aurora Global Database, Route 53 health-checked failover, auto-scaling strategies, load testing with Artillery, chaos engineering, runbooks, and a comprehensive launch checklist.
AWS Full-Stack Mastery: Security with IAM, Cognito, WAF & Secrets Manager
Implement production security for a children's platform: least-privilege IAM policies, Cognito user pools with COPPA-compliant parental consent flows, WAF rule groups, KMS encryption, Secrets Manager auto-rotation, and GuardDuty threat detection.
AWS Full-Stack Mastery: Why AWS and Building Kids Learn from Scratch
Why we chose AWS to build the Kids Learn platform from the ground up. AWS Well-Architected Framework, account setup, cost planning, and the complete service map for a production SaaS.
How I Taught Claude Code My Entire Codebase in 15 Minutes (And Why Every Project Needs CLAUDE.md)
Installing Claude Code, writing an effective CLAUDE.md, the /init command, memory architecture, .claude/ directory structure, and turning a generic AI into a project-aware pair programmer.
Building a Domain Layer That Actually Has Behavior (Not Just Properties)
Rich domain models for Kids Learn with C# 14. Entities with invariants, value objects, domain events, aggregate roots, and architecture tests to enforce the rules.
Everything Cloudflare Offers for Free (And Cheap) — Self-Hosting, Web Apps, and AI
A complete reference guide to Cloudflare's free and low-cost services for three use cases: self-hosting homelab services, building full-stack web apps on the edge, and running AI workloads. Pricing tables, free tier limits, and use-case mappings — all in one place.
Building KidSpark: Why Mobile, Why Now, and Why It's Harder Than You Think
Your web platform is thriving, parents want a mobile app, and your team is ready to build. But kids apps play by different rules.
Testing AI Agents Is Nothing Like Testing Regular Code
How to test LLM outputs, validate RAG retrieval quality, and verify vector search accuracy using DeepEval, Ragas, and Testcontainers. Part 2 of the AI-powered quality engineering series.
Clean Architecture in .NET 10: Why I Stopped Copy-Pasting Templates and Started Understanding the Rules
What Clean Architecture actually means in .NET 10, the Dependency Rule explained with real code, C# 14 features that matter, and setting up the Kids Learn solution structure.
I Let AI Write My Tests with Playwright MCP — Here's What Actually Happened
Setting up Playwright MCP with Claude Code to build an AI-powered test automation framework for a Next.js app. Complete guide covering Page Object Model, custom fixtures, network mocking, CI/CD integration, debugging, and AI prompting best practices. Part 1 of a series on quality engineering in the AI era.
BDD Test Automation with MCP Servers — From Jira Ticket to Passing Test in Minutes
A complete guide to connecting Jira, Linear, GitHub, and Playwright MCP servers with Claude Code to auto-generate BDD tests from ticket acceptance criteria, execute them against a live app, and report results back.
Building a Self-Hosted Homelab with Proxmox: Website, NAS, Dev Server — All on One Machine
A practical guide to setting up Proxmox VE for self-hosting your website, NAS, Ubuntu web server, and Windows 10 dev environment. Includes comparisons with VPS, security hardening, and hardware recommendations for non-IT folks.
From Idea to Production: Building a SaaS Product with Claude, Gemini, and Agentic AI
How I designed, analyzed, implemented, and tested Kids Learn — an AI-powered educational SaaS platform — using Claude as my development partner, Gemini for AI features, Next.js, PostgreSQL, and pgvector. A complete walkthrough from napkin sketch to production.
Building an AI Voice Interview Platform: What Actually Worked (and What Didn't)
Lessons from building a real-time AI interviewer with LiveKit, OpenAI Realtime, Gemini Live, and Bedrock Nova. VAD tuning, provider failover, latency budgets, and the things nobody warns you about.
I Built This Site in a Weekend with Astro (And You Should Too)
After trying Next.js, Gatsby, Hugo, and plain HTML for personal sites, I finally found the framework that fits. Here's why Astro won.
Starting This Blog at 15 Years In
Why I'm finally writing after over a decade in software. What to expect here — AI, .NET, leadership, and the messy reality of building things.
I Replaced Half My Dev Scripts with Moltbot (And My Workflow Is Better for It)
How I set up Moltbot — the open-source personal AI assistant — to automate code reviews, deployments, monitoring alerts, and daily standups. A practical guide for developers who want AI that actually does things.
Why I Registered My Domain Through Cloudflare (And You Should Too)
A step-by-step guide to registering a domain with Cloudflare Registrar. No markup, no upselling — just the cheapest way to own your domain with built-in DNS and security.
The Complete Cloudflare Stack for Developer Portfolios
How to set up a fast, free, professional portfolio using Cloudflare Pages, Workers, D1, R2, and custom domains. Everything I learned building and deploying my own site.
Cloudflare Tunnel Changed How I Run My Homelab
How I use Cloudflare Tunnel to securely expose self-hosted services without opening ports, managing certificates, or configuring DDNS. A practical guide for homelabbers.
Securing Your Website with Cloudflare: A Practical Guide
Everything I configured to secure my portfolio site with Cloudflare — from SSL and WAF rules to bot protection and security headers. Free tier covers most of it.
AI Coding Tools: An Honest Review After a Year of Daily Use
I've used Claude Code, GitHub Copilot, and other AI tools every day for over a year. Here's what actually saves time, what wastes it, and the productivity trap nobody talks about.
How I Built an AI Code Review Bot That My Team Actually Uses
I built a GitHub Action that uses Claude to review PRs. The first version was annoying. The current version catches real bugs. Here's the whole journey.
I Spent a Weekend Building AI Agents. Most of Them Were Useless.
I experimented with CrewAI and LangGraph to build multi-agent workflows. Some were genuinely useful, some were expensive toys. Here's what I learned.
Our First RAG System Was Terrible (Here's What We Fixed)
We built a RAG knowledge base. The first version gave wrong answers half the time. Six months of iteration later, it actually works. Here's every lesson.
I Tried Five Vector Databases. Here's What I'd Actually Use.
We tested ChromaDB, Pinecone, Weaviate, Qdrant, and pgvector for our RAG system. Benchmarks, costs, developer experience — and the one I'd pick today.
Setting Up Azure OpenAI for Enterprise: What Nobody Tells You
We integrated Azure OpenAI into a client's enterprise platform. Here's the practical stuff — networking, content filtering, cost surprises, and what the docs don't cover.
15 Years of .NET: From Web Forms to AI Agents
I started with ASP.NET Web Forms in 2008. Now I'm building AI agents with .NET and Python. A reflection on how the ecosystem changed — and how it didn't.
Why We Stopped Fighting the Monolith and Started Strangling It
The story of migrating a 2M+ line retail platform to microservices. What the strangler pattern actually looks like when you're in the middle of it.
What Nobody Tells You About Becoming a Tech Lead
I made the switch from senior developer to technical lead. Here's what I got wrong, what surprised me, and what I wish someone had told me earlier.
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