标准本地栈（Ollama + LangChain + ChromaDB）

Ollama serves as a server for running AI models, compatible with Windows, Mac, and Linux systems. Key models in this environment include Llama 3 and Mistral. LangChain is a framework built on Python 3.10 and above, focusing on developing applications that interact with language models. To prevent system disruptions, it is recommended to use a virtual environment (venv) for dependency management. By configuring these tools, developers can establish an efficient local AI development environment, facilitating model training and testing.