IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
901 articles
28 Mar 2026 · 6 min read
ai
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.
Read more28 Mar 2026 · 6 min read
casual-conversation
Daily English practice for tech professionals. Evening session — speaking practice, review, and real-world scenarios.
Read more28 Mar 2026 · 6 min read
bug-report
A practical guide for Vietnamese QA engineers and developers to communicate clearly in English — covering bug reports, test case writing, and professional review comments.
Read more28 Mar 2026 · 6 min read
english-lesson
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.
Read more28 Mar 2026 · 5 min read
english-lesson
Daily English practice for tech professionals. Noon session — vocabulary deep dive with pronunciation, exercises, and real-world examples.
Read more28 Mar 2026 · 12 min read
ai
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.
Read more28 Mar 2026 · 5 min read
communication
A practical speaking guide for Vietnamese developers who want to propose technical ideas confidently in English — from team meetings to executive presentations.
Read more27 Mar 2026 · 6 min read
agents
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.
Read more27 Mar 2026 · 6 min read
communication
A practical guide for Vietnamese developers on how to give task estimates, push back on unrealistic deadlines, and manage stakeholder expectations confidently in English.
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