..
UV hard links
UV creates hard links when installing python packages from cache. This can be verified by checking the inode numbers of the files.
$ uv init
$ uv add requests
$ stat -c '%i' .venv/lib/python3.14/site-packages/requests/__init__.py
15234390
$ stat -c '%i' /home/dom/.cache/uv/archive-v0/i3tVN3Nyn68xaZlAD65cq/requests/__init__.py
15234390