Discover how to revolutionize retail connectivity by building a secure, high-performance Layer 2 Mesh VPN using NetBird and a self-hosted VPS coordinator server. This comprehensive guide details how to seamlessly link point-of-sale systems, IoT devices, and local branches with low latency, robust security, and centralized control, eliminating the complexities and single-point-of-failure risks of traditional hub-and-spoke architectures.