4 projects · 3 articles
▸ Projects
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
Multilingual 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 → PDF.
HTPBE — Has This PDF Been Edited?
SaaS platform for PDF authenticity verification with a public REST API. Detects edits through 5-layer analysis of metadata, xref structure, digital signatures, and content.
▸ Articles
How I Build a Production SaaS in 2 Months: The Complete Checklist
Every production SaaS needs the same foundation. Here's the 40+ point checklist I use: auth, billing, database, API, email, monitoring, security — with architectural decisions and honest time estimates.
How I Fully Automated E-commerce Order Processing (Payment to Invoice in 2 Minutes)
Manual order processing costs 15–30 min per order. Here's the full automation pipeline I built: Stripe → CRM → shipping → invoice → email in 2 minutes.
Stripe Webhooks Done Right: Production Architecture
Stripe retries webhooks for 72 hours. Naive handlers duplicate orders. Here's the production architecture: idempotency, BullMQ queues, signature verification.