Kratos is a production-grade Go microservices framework designed for cloud-native applications. It provides a unified transport layer supporting both HTTP (gorilla/mux) and gRPC, with a composable middleware chain for cross-cutting concerns like logging, tracing, authentication, rate limiting, and circuit breaking. The framework is protobuf-first: service definitions are written in proto files, and code generators (protoc-gen-go-http, protoc-gen-go-errors) produce HTTP stubs and structured error types. It includes a pluggable configuration system with support for multiple sources (file, etcd, consul, nacos, apollo, kubernetes, polaris), a service registry abstraction with implementations for etcd, consul, nacos, eureka, zookeeper, kubernetes, polaris, and others, and a load balancing selector with algorithms like random, weighted round-robin, and power of two choices (p2c). Observability is integrated via OpenTelemetry (tracing, metrics, logging) and Sentry error tracking. The CLI tool `kratos` scaffolds new projects, manages proto generation, and handles upgrades. The architecture is modular: core packages are minimal and extensible, with contrib packages as separate Go modules. The codebase demonstrates strong engineering practices, clean interfaces, and well-tested core components.
This is a WordPress blog theme (fork of Kratos) with heavy anime/waifu aesthetics, featuring a Live2D interactive mascot, PJAX seamless navigation, and an extensive admin panel. It provides custom login/registration with brute-force protection, SMTP email notifications, a rich shortcode system, and a complete theme options framework. The codebase is functional but exhibits high technical drift: it relies on outdated dependencies (jQuery, Font Awesome 4.7, hardcoded CDNs), lacks modern build tooling, and is explicitly deprecated by the author in favor of Kratos V4. The theme is primarily targeted at Chinese personal bloggers who enjoy otaku culture.