How to Install LangGraph on Hostinger VPS

LangGraph is a framework by LangChain for building stateful, multi-actor AI agent workflows. It lets developers define agent behavior as graphs combining reasoning, tool use, and memory in a modular, composable architecture. With 35k+ GitHub stars, it has become the go-to framework for production-grade agent orchestration, enabling everything from simple ReAct agents to complex multi-actor systems with parallel execution and human-in-the-loop feedback.