Systems for people who build things and teach themselves everything.

Practical tools, templates, and build logs from someone who's ghostwritten 50+ books, passed the PMP in 3 months, and builds apps solo. Take what works. Skip what didn't.

In Development · Classroom Tool
Project Penguin

Classroom management with avatars, points, random picker, timers, attendance, and reports.

Live · Interactive Tool
Practice Chatting in Korean

Pick your level, chat naturally, and listen back.

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Learning: Korean — preparing for TOPIK 2. Vocabulary, grammar, and practice sessions continuing. Also built a Korean chat bot to support speaking practice; it's live under Resources.

Reading: Empire of AI — exploring how artificial intelligence is reshaping industries and power structures.