Opening the desk

cy.Writing

choy.in/blog

Notes from the desk.

Choose a note. I’ll print you a copy.

Mar 8, 2026Case Study · 8 min read

Building Lotsotravel – From a Personal Pain Point to an AI-Powered Global eSIM Store

Feb 10, 2026Vibecoding · 3 min read

A game from an Instagram Reel built after 30 minutes

Nov 19, 2025Vibecoding · 5 min read

copilot-instructions.md is a great entrypoint for AI coding assistants

Oct 18, 2025Side Projects · 7 min read

Stripe is Dangerous: How to Make It Safer for Your Side Hustle

Sep 25, 2025Vibecoding · 12 min read

Integrating a Custom Backend with Lovable: What Worked and What Didn't

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5 Game-Changing Steps I used to launch my Lovable Project (And Why Most People Skip Step 3)

Nov 23, 2022Tutorial · 10 min read

Building a Scalable URL Shortener with Cloudflare Workers and KV