Courses · "testing"

A deep-dive follow-up course on protecting margins, cutting waste, and building durable savings habits

A hands-on follow-up course on rigorous testing strategy and effective code review

Find the cracks in any position, build unbreakable counters, and stop losing arguments you should win

Learn how blockchain games, NFT items, and playzones actually work — from wallets to real value

Use antagonist thinking, weak-spot audits, and counterarguments to build a business story that survives contact with reality.

A practical guide to finding bugs, reviewing code, and shipping software with confidence