Iurii Uses: #Stripe

HTPBE? — Internal Admin Dashboard

Role-gated admin dashboard for the HTPBE? SaaS platform — real-time KPIs, per-user quota tracking, and a zero-dependency bar chart, all server-rendered via

vatnode — EU VAT Validation API

Developer-first SaaS API for EU VAT validation via VIES with Redis caching, change monitoring, and webhook notifications.

pi-pi.ee — B2B E-commerce for Waterless Urinal Systems

i18n B2B e-commerce platform for waterless urinal products across 32 European countries with automated VAT handling, PDF invoicing, and CRM integration.

Pikkuna — E-commerce for Vinyl Curtains & PVC Products

International e-commerce platform with 30 locales, product configurators, AI chatbot, and fully automated order flow: Stripe → Zoho CRM → Airtable → Mailgun →

Subscription billing edge cases Stripe glosses over: proration, dunning, the state machine, cancellation timing, refunds, VAT, and webhook ordering.

Stripe to Mollie migration in production: mandates instead of Subscriptions, thin webhooks, no proration, no portal, no Tax. What you rebuild yourself.

Real-time Next.js admin dashboard: TanStack Query polling, Zustand for filter state, Sentry error boundaries per panel, and a zero-dependency bar chart.

PostNord API and Zoho Desk automation for EU e-commerce: gotchas to watch for — 200 OK empty arrays, EU data center URLs, token caching — with illustrative

E-commerce order automation that cut 160+ hours/month of manual work to zero: Stripe webhook to VAT invoice and tracking in under 2 minutes.

40+ point production SaaS checklist: auth, Stripe billing, PostgreSQL, rate limiting, email, monitoring, and security — with honest 8-week build estimates.

Stripe webhook production architecture: idempotency keys in PostgreSQL and Redis, BullMQ queue, signature verification in Next.js App Router — with full