IDEAS, DECISIONS & LESSONS

Journal

Notes on AI, architecture and building useful products.

878 articles

12 Jun 2026 · 5 min read

career

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.

12 Jun 2026 · 8 min read

communication

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.

12 Jun 2026 · 6 min read

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.

12 Jun 2026 · 5 min read

agents

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.

11 Jun 2026 · 4 min read

communication

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.

11 Jun 2026 · 7 min read

agentic

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.

11 Jun 2026 · 9 min read

agentic-ai

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.

11 Jun 2026 · 8 min read

communication

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.

11 Jun 2026 · 11 min read

agentic-ai

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.