problems in install step

I run "pip install -e ." after download the code, but the commad windows is still in "installing build dependencies", and it has downloaded more than 10G data. I have installed pytorch==2.9.0+cuda12.6, what data it is downloading? Is there any problems in my operation?

Start by reproducing the reported `pip install -e .` command and capturing the installation output, including the dependency currently downloading more than 10 GB. Compare that behavior with the installed PyTorch 2.9.0+CUDA 12.6 environment and identify whether the project’s installation metadata or the local operation is responsible. Done means the dependency source is identified and the installation guidance or project behavior has a clear resolution.

Written by the indexing model from the issue text.