01
Infrastructure
Docker packages application services for Linux environments. Traefik provides reverse-proxy routing and participates in the TLS termination path. DNS, certificates and forwarding configuration must align with application endpoints and authentication redirect URLs.
02
Engineering Challenges
The interesting problems live between boundaries: preserving product and variant identity, keeping seller data decoupled, distinguishing synchronous failure from delayed events, and tracing identity or deployment problems across the request path. Each requires explicit contracts and end-to-end validation.