YunaiV / ruoyi-vue-pro

Chinese-language full-stack admin platform (Spring Boot + Vue) with RBAC, multi-tenancy, workflow, payments, mall, CRM/ERP modules, and WeChat mini-program support.

lionsoul2014 / ip2region

Offline IP-to-region lookup library and data management framework supporting IPv4 and IPv6 with xdb query clients.

emqx / emqx

Scalable MQTT broker and IoT messaging platform supporting MQTT 5.0, CoAP, LwM2M, and MQTT over QUIC, with a SQL rule engine and data bridges.