Learnflow

A visitor-facing edtech landing page built with Ruby on Rails 8. Designed to practice Growth team patterns: A/B testing, conversion funnels, ERB and HAML templating, and server-side rendering.

Live features

• A/B tested CTA on the landing page — randomly assigns "Start Learning Free" or "Try 8 Weeks Free" on each visit
• Course catalog with three subjects, each with a detail page
• Signup conversion funnel with POST form and redirect
• HAML and ERB views side by side on the course detail page
• Shared layout with nav bar via application.html.erb

Stack

• Ruby 3.2.2
• Rails 8.1.3
• HAML (via haml-rails gem)
• CSS — no framework, handwritten
• WSL / Ubuntu on Windows

Run locally

git clone https://github.com/iroussos25/learnflows
cd learnflow
bundle install
rails s

Live demo

https://learnflows.fly.dev

Run locally

Visit http://localhost:3000

What I learned

Built in one session as a deliberate practice exercise before a technical interview. Covers the full Rails request cycle — routing, controller instance variables, ERB loops, HAML syntax, form_with POST handling, and layout files. The A/B test mirrors the kind of variant assignment a Growth team engineer would implement on a real conversion funnel.