Supabase + Stripe + Netlify backend for a finished lawn bowls web app: sign-in, 30-day trial, annual subscriptions, access lock

I own Bowls Draw, a web app that helps social lawn bowls coordinators pick fair teams each week. The app and the marketing website are finished and live on two Netlify sites. I need an experienced developer to build the account and payment layer around them. I am not asking for a rebuild. What you would build • Sign-up, sign-in, password reset and email confirmation with Supabase Auth. • A 30-day free trial with no card, tracked in the database, with reminder emails at 14, 7 and 1 days before it ends. • Stripe subscriptions in AUD: Individual $49 a year (1 login) and Club $99 a year (3 coordinator logins). Annual auto-renewal, receipts, failed-payment handling, Customer Portal, webhooks. • Access gating on Netlify: the app only opens for a live trial or a paid year. When access ends it locks, with no grace period. • One active session per login. • Online cancellation, a My Account page, and a simple admin panel for me. • Transactional emails (welcome, reminders, receipts, cancellation) with my wording. • Documentation and a clean handover to a repository and accounts that I own. Why this is a good project • The front end, pricing, business rules and customer flow are already decided and written down. I will give you a full specification, flow diagram and a list of every email and record. • Australian subscription law is tightening in July 2027, so online cancellation and renewal notices are built in from the start. • Fixed price per milestone, paid when I have approved each one on a staging site. Who I am looking for • You have shipped Supabase and Stripe subscription billing before and can show me live examples. • You are comfortable with Netlify functions or edge functions, and plain JavaScript (the app is a single HTML file, not a framework app). • You write clearly, test your work, and are available for some overlap with Sydney business hours (AEST/AEDT).

How to apply

Please do not send a template reply. In your proposal, answer these five questions briefly: 1. Which similar Supabase + Stripe subscription project have you delivered? Please link it or describe it. 2. How would you build the 30-day no-card trial and the reminder emails, and what would send them? 3. How would you stop the app loading for a signed-out or lapsed user, given it is a static single- file app on Netlify? 4. Which payment methods would you offer for an annual auto-renewing plan in AUD, and what are the trade-offs? 5. What is your fixed price and timeline per milestone, and what would you class as extra? I will share the full specification with shortlisted applicants straight away. It is attached to this post.