Harmony

Homeschool parents face a fragmented curriculum market with no objective way to compare options. The average family burns through three or four bad picks — about $900 — before landing on something that fits. Harmony turns that decision into a five-minute learner profile and a ranked, buyable year-long plan, with the underlying recommendation logic exposed so a parent can see why each option made the list.

Built solo: a Vite + React 19 consumer app on top of a Supabase backend (17-table schema, 13 API endpoints), a subject-taxonomy-aware planner, multi-child support (cap of 4 per family), Stripe checkout, and 114 passing vitest cases across 13 test files covering scoring, planner mutations, and grade filtering. Underneath the product sits a two-phase LLM tagging pipeline (Haiku for web-search-grounded research, Sonnet for structured extraction) that’s tagged 1,307 curricula across 10 pedagogical dimensions — parent involvement, independence, structure, screen time, approach, learning style, religious content, consumable, additional materials, presentation — powering the recommendation engine.

Growth runs end-to-end through code: a Meta Ads automation layer programmatically creates and reports campaigns; landing-page variants are A/B-tested in production with Playwright-driven UX QA capturing every state. Campaign 02 hit 35 signups at $1.67/signup, a 7.34% CTR (5–10× the FB education benchmark), 25.6% landing-page conversion, and 87.5% questionnaire completion.