Development
React Router v8
React Router v8: The "Boring Major" and the v7 → v8 Upgrade Guide ✍️ TL;DR React Router v8 isn't a release that ships new features — it locks in, as defaults,…
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SeungAh Hong's Tech Blog
Notes on what I learn and think about while building — sharing hands-on experience and technical knowledge.
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Development
Hours Saved Is the Floor — Building an AI-Native Revenue Organization
1. What Is This Post About? Notes on Anthropic's guide Building an AI-native revenue organization and the eBook that ships with it. The title says sales…
Development
More Tokens Won't Make It Smarter — 76 to 89 on the Same Budget
1. What This Post Is About Notes on a talk by Katelyn Lesse (platform engineering lead) and Angela Jiang (platform product lead) at Anthropic — Every Token…
Development
Vitest 5.0
Vitest 5.0: Performance, Trace View, and the Migration Guide Vitest 5.0 shipped on September 3, 2026 (first tag: 5.0.1 ). Unlike Vite 8, this major isn't an…
Development
Running Is Not the Same as Safe — 5 Principles for Securing AI-Generated Code
1. What Is This Post About? Notes on How Developers Secure AI-Generated Code: 5 Security Best Practices, a talk by IBM security architect Jeff Crume on the IBM…
Development
More Instructions, Less Compliance — Writing Specs Agents Actually Follow
1. What Is This Post About? Notes on Addy Osmani's How to write a good spec for AI agents. The piece opens with a question the author received: "I've heard a…