The assignment
Build an app that makes you learn AI concepts the Duolingo way. Wire it up with PostHog for analytics.
This submission is a Google AI Studio app built for this quest's brief: a Duolingo-style app for learning AI concepts, wired up with PostHog analytics. The live app requires a Google sign-in to view.
Sweta shipped a live link you can open. Parts of it sit behind a sign-in, so this read leans on what is public plus Sweta's own description.
What it demonstrates
What is not shown
Take this awayTwo things travel from this build: short lessons beat comprehensive ones, and events defined before launch beat opinions formed after it.
Retention is a design problem, not a content problem. Wiring PostHog in from day one is the tell of a builder who ships to learn from real behaviour — rather than to admire their own screenshot.
A loop worth coming back to
Bite-sized lessons, instant feedback, and a reason to return tomorrow — streaks, XP, spaced review. A long article with a quiz at the end is not the Duolingo shape.
Concepts that are worth the streak
Tokens, embeddings, attention, hallucination, RAG — the vocabulary a PM needs in a real conversation, not 'what is AI' trivia.
Instrumented, not just launched
PostHog wired in and firing real events. An analytics claim nobody can verify tells a reader nothing about how the product is used.
No numeric scores are published here. These pages are written reads of what each builder shipped — the build is the point, not a mark out of a hundred.