https://docs.llamaindex.ai/en/stable
https://github.com/run-llama/llama_index

https://docs.llamaindex.ai/en/stable/module_guides/models/embeddings.html
https://docs.llamaindex.ai/en/latest/module_guides/querying/pipeline/root.html
https://docs.llamaindex.ai/en/latest/module_guides/querying/pipeline/usage_pattern.html
https://docs.llamaindex.ai/en/latest/module_guides/querying/pipeline/module_usage.html
https://docs.llamaindex.ai/en/latest/examples/pipeline/query_pipeline.html

2024
https://blog.llamaindex.ai/introducing-query-pipelines-025dc2bb0537
    ! rag