Case Study
Moon Holidays
StaySync: B2B hotel allotment management
NestJS 11 + Drizzle + PostgreSQL 17 platform with 12 modules, 532 tests (99.63% allotment coverage), and a Contracts → Resolver → PoolBudget pipeline
StaySync is the B2B hotel allotment platform: allotment calendars, hardblocks with amendment history, booking orders, advisory-locked availability checks, and real-time sync with the Moon Holidays supplier API. Built on NestJS 11 with Drizzle ORM, PostgreSQL 17, Firebase auth, 12 business modules, 17 test suites, 532 tests, and two Next.js frontends consuming the API.
nestjstypescriptpostgresqldrizzlefirebaseb2barchitecturezod
Feb 2026 — Present5 min
