Hi all, I am new to llmaindex. I was reading about how to get started. I cannot use open ai for getting started as my free credits have expired. In the documentation alternate ways is given using ollama but that required 32GB of RAM (https://docs.llamaindex.ai/en/stable/getting_started/starter_example_local/ ). Is there a simpler way to get started with llma-index as my system do not have this much of RAM