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I built a production-ready fintech backend so you don’t have to.

https://haylayn.com/

After working on multiple projects, I realized every team keeps rebuilding the same things:

  • Payment handling
  • Idempotency
  • Ledger systems
  • Webhooks
  • Monitoring

So I packaged everything into one kit:

→ HAYLAYN Backend Kit

Stack:

  • NestJS 10
  • Prisma
  • Double-entry ledger
  • Idempotent payments
  • Outbox pattern
  • Health monitoring

This is not a template — it's structured like a real fintech system.

Who this is for:

  • SaaS founders building payments
  • Devs tired of rebuilding backend infra
  • Anyone who wants to ship faster with real architecture

Price: $299

If you're interested, I’d love feedback or questions.

submitted this linkon March 19, 2026