IDEAS, DECISIONS & LESSONS

Journal

Notes on AI, architecture and building useful products.

2 articles

26 Jun 2026 · 5 min read

career

English Lesson — Friday Morning: Career Growth & Interview English

Daily English practice for tech professionals. Friday morning — career vocabulary, interview phrases, salary negotiation, and promotion conversations in English.

08 Mar 2026 · 43 min read

edtech

Building KidSpark: Monetization, Growth, and the Road Ahead (Part 10 of 10)

Part 10 of 10 — The final chapter. Ethical monetization for kids apps, growth strategies that don't exploit children, and honest lessons from building KidSpark from idea to production.