The llama.cpp tools and examples download the models by default to a OS-specific cache folder [0]. We try to follow the HF standard (as discussed in the linked thread), though the layout of the llama.cpp cache is not the same atm. Not sure about the plans for RamaLama, but it might be something worth to consider.
[0] https://github.com/ggerganov/llama.cpp/issues/7252