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De parte de B — Subscription operations platform
Production subscription and fulfillment platform for La Carta Deseada, the Spanish snail-mail club from De parte de B. I built the public site and its Stripe-to-fulfillment pipeline: billing, synchronized subscriber state, email, and a private operations dashboard.
Role
End-to-end developer
Result
Live production system
When
2026
Stack & architecture
- Astro and TypeScript on Cloudflare Pages for the public site and private operations dashboard.
- Stripe Payment Links and Customer Portal for billing, with a Cloudflare Worker handling webhooks.
- Google Apps Script and Sheets for subscriber state, event history, and fulfillment data.
- Brevo and Cloudflare Access for transactional email and admin authentication.
Production engineering
- Built the complete path from checkout and self-service billing to the monthly fulfillment dashboard.
- Verified Stripe signatures and normalized checkout, customer, subscription, and invoice events into one subscriber model.
- Made processing safe under retries and out-of-order delivery with per-field timestamps, locking, provider timeouts, and email idempotency.
- Kept secrets server-side and personal data out of logs, with tested deployment automation across the site, Worker, and Apps Script.
Result
One live system covering the complete path from subscription checkout to the monthly fulfillment list.