嗨，我是 Dustin。
Hi, I'm Dustin.
教了 12 年 GMAT，現在人在曼谷，用 AI 做教育產品。這裡寫的是一個沒有工程背景的人，怎麼靠 Claude Code 和 Gemini 把東西做出來的過程，還有途中踩過的坑。
12 years teaching GMAT. Now based in Bangkok, building education products with AI. This blog is about how someone with zero engineering background actually ships things — and all the pitfalls along the way.
精選
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What I only learned after taking on enterprise AI training—prep time, the client liaison, instructor flexibility, and how to pick an instructor
Four things I learned after running a handful of enterprise AI training sessions. Prep time is 3-5x the session itself. The client liaison decides everything. The instructor has to handle wildly different skill levels. And if you're looking to hire a trainer, the signals are like picking a pop star.
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親自接 AI 企業培訓之後才知道的事——準備時間、甲方對接、講師應變、選講師訊號
接了幾場企業 AI 培訓之後整理出來的四件事：準備時間是上課時間的 3-5 倍以上、甲方對接者決定一切、講師要能應付各種程度跟提問、想找講師的話訊號跟追星很像。
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A Legal Counsel Used Claude Code to Catch Patent Infringement — Days Down to Hours
A legal counsel at a mid-sized company took our Claude Code course, then compressed a multi-day patent infringement audit into a single day — and actually caught a real case that is now in legal proceedings. This story finally turns "Claude Code is not just for engineers" from a slogan into a fact.
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法務用 Claude Code 抓專利侵權，從幾天變成一天
一位幾十人公司的法務上完 Claude Code 課之後，把原本要好幾天的專利侵權查核壓到一天，而且真的抓到送上法律程序。這篇想記下這個案例，因為它讓「Claude Code 不是只給工程師用」這句話從口號變成事實。
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The Truth and BS of Vibe Coding: Observations from a 10-Year Teaching Veteran
We shouldn't uniformly trash Vibe Coding, but we do need to recognize the traps in course quality. A teacher with 10+ years in the game shares how to tell the real deal from the fakes.
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Vibe Coding 的真與假：一個從業十年老師的觀察
不該統一貶低 Vibe Coding，但也要認清課程品質的陷阱。一個教學從業十年以上的人，分享辨識有料與沒料的方法。
vibe-coding
最近在寫
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大部分 AI 導入的效益，其實跟 AI 沒什麼關係
從實作經驗看，組織導入 AI 得到的效益，很多來自權限、資料治理、遊說與冗餘流程被順手處理掉，而不是 AI 本身。
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讓 AI 寫得像我：從 LoRA 微調到 SKILL 三道閘門
拿 LoRA 微調 Qwen3 8B 學自己的文風，文風像但內容支離破碎；改寫成 SKILL 讓 Claude 寫、加上標點／逐句／結尾三道閘門，效果跟微調差不多。
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同時開 5 個以上 Claude Code／Codex，我的五個注意力瓶頸解法
同時開超過 5 個 Claude Code／Codex 視窗時會遇到注意力瓶頸，一直 context switching 真的很累。分享目前跳脫這個瓶頸的五個做法：多窗口管理器、語音輸入、夜間排程、reviewable skill、定期做減法。
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如果2011年有這個網站，我可能會走不一樣的路
台大財金畢業後在GMAT教學裡找到熱情，認識分享職涯情報的 @g_c088，第一次實測他的職涯導覽平台後回頭想，如果2011年就有這個網站，會不會走不一樣的路。
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GPT-5.6 Luna Max 是新一代的雜活之王
降價後拿 Luna Max 幹雜活：22 分鐘抓完各家報表、整夜土法煉鋼爬蟲、還幫我刷到 ANA 曼谷東京商務艙兩位。
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職涯諮詢前後：Grill-me 準備、教練 80/20、Fable 5.1 收待辦
職涯諮詢前用 Opus 5.5 配 Grill-me SKILL 整理小抄，諮詢中教練 80/20 引導點醒盲區，會後把筆記交給 Fable 5.1 整理待辦。
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Most of the Gains From AI Adoption Have Little to Do With AI
From hands-on work, most of what an organization gains from adopting AI comes from fixing permissions, data governance, buy-in and redundant processes along the way, not from the AI itself.
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Getting AI to Write Like Me: From LoRA Fine-Tuning to a Three-Gate Skill
LoRA fine-tuning Qwen3 8B nailed my writing style but produced incoherent content, so I switched to a Claude skill with punctuation, sentence-level, and ending gates instead, and got results about as good as fine-tuning.
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Running 5+ Claude Code/Codex at Once: My Five Fixes for the Attention Bottleneck
Once I have more than 5 Claude Code/Codex windows going, I hit an attention bottleneck — constant context switching is genuinely exhausting. Five things that get me past it: a good multi-window manager, voice input, an overnight schedule, a reviewable skill, and regular pruning.
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What If This Site Had Existed in 2011
A finance grad who found his calling in GMAT teaching meets @g_c088, tries out his new career-navigation platform, and wonders how different things would have gone with this site in 2011.
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GPT-5.6 Luna Max Is the New King of Grunt Work
Using Luna Max for grunt work after the price cut: statements pulled in 22 minutes, brute-force scraping all night, and two ANA business class award seats from Bangkok to Tokyo.
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Before and After Coaching: Grill-me Prep, 80/20 Coach, Fable 5.1 Todos
Before a career coaching session I used Opus 5.5 with the Grill-me SKILL to build a prep sheet, then the coach ran 80/20 to surface blind spots, and Fable 5.1 turned my notes into todos afterward.