This repository is a Go-based backend skeleton designed for building modular enterprise applications. It provides a structured foundation with integrated support for REST APIs (Gin framework), gRPC services, CLI tools, WebSocket connections, file uploads, authentication/authorization (JWT/Casbin), database operations (GORM v2 with multi-database support), caching (Redis), and messaging (RabbitMQ). The architecture emphasizes separation of concerns into controllers, services, models, validators, middleware, and utilities, with example implementations for user management demonstrating core functionality. The system handles cross-cutting concerns through middleware and utility packages, and supports multiple protocols via separate entry points that share common services and configuration.