https://offerkit.dev/blogNotes on building reliable, self-hosted promotion infrastructure.https://offerkit.dev/blog/promotion-logic-is-infrastructure/https://offerkit.dev/blog/promotion-logic-is-infrastructure/Tue, 04 Aug 2026 00:00:00 GMTWhy coupons, gift cards, loyalty, and referrals need the same engineering discipline as payments, identity, and other critical infrastructure.