Backend (Spring Boot)

Java 21 · Spring Boot 3.5.x · Keycloak 26 · PostgreSQL 16 · Maven multi-module

Frontend (React)

React 19 · TypeScript · Vite 6 · MUI v6 · TanStack Query v5 · Keycloakify

Architecture Decisions

ADRs capturing key technical decisions: PostgreSQL schema standards, IAM boundary, vehicle APIs, payment gateway