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How I shipped 3 apps in a month and built the tool that made it possible
I left my job, shipped 3 apps to the App Store in one month solo, then turned the system into a product. Here's exactly how.
App QA with AI: ADB + Spec-First catches 90% of production bugs
The key to app QA automation isn't ADB — it's Spec-First. Define the errors first, then let AI generate ADB scripts mechanically. Catches 90% of production bugs.
Claude Code: "Using it well" means delegating more
Using Claude Code well means delegating more. Like managing an assistant — you need delegation frameworks and memory management. Here's the system.
Why you shouldn't give AI a Playwright MCP
Give an AI agent a browser and tokens vanish instantly. A single Playwright MCP click costs 12,891 chars of context. How Vercel solved this problem.
AI coding means your testing strategy needs to change
Pyramid → Trophy → Hourglass. When AI writes code, test writing cost approaches zero. The old integration-focused strategy breaks down. Maximize both ends: Static + Mock E2E.
What I'm building as an AI Product Engineer in 2026
Implementation got dramatically easier with AI agents. Our role is shifting — from writing code to designing the structures code gets written into.
Save 80% tokens: use CDP instead of MCP
Chrome DevTools Protocol cuts token usage by 80% compared to MCP. Use the same protocol that DevTools uses internally to talk to the browser.
Inside claude-mem: the architecture of cross-session AI memory
A memory system that auto-records every Claude Code session, compresses with AI, and injects context into future sessions. Here's how it works inside.
AI does all the coding now — how far should you delegate?
AI can write most of the code now. The real question is where to draw the line. Only delegate what you already understand.
Developer career: new coordinates in the AI era
A 4-year dev got laid off. Not a performance issue — the whole team was cut. The career map has changed. Here's what the new coordinates look like.
3 learning tips from a 4-year frontend engineer
I had the wrong system. A 4-year frontend engineer shares what actually works: skip-based learning, docs philosophy, and open source tracing.
Will AI replace frontend engineers?
I tested Google Jules (AI Agent) on real frontend tasks. Here's what it can do, what it can't, and what frontend engineers should focus on.
Why engineers should think like product
Better decisions start from the product, not the technology. Two real cases where product-first thinking changed the outcome.
Why I joined PEC
I was optimizing for the wrong thing. A shift from career-focused to product-focused thinking, and why I joined PEC.
Why we start with culture
We wrote the manifesto before the first line of code. Culture isn't a nice-to-have — it's the operating system.