lfs-cache is a caching proxy for Git LFS servers.

$ docker run --name lfscache --rm -d -v /my/cache/dir/lfs:/lfs saracen/lfscache:latest --url github.com/org/repo.git/info/lfs --http-addr :80  --directory /lfs

Download the correct binary for your system.

$ ./lfscache --url github.com/org/repo.git/info/lfs --directory /my/cache/dir/lfs --http-addr=:9876

--directory specifies the cache directory. The layout is the same used by the Git LFS client, so it might be a good idea to copy over your .git/lfs/objects directory to preload the cache (cp -r .git/lfs/objects /my/cache/dir/lfs). The tmp and incomplete directories do not need to be copied over.

Now you need to have your Git LFS client point to the proxy. There are several ways to do this. The easiest method is changing the lfs url that will be used in your local git config:

# note that repo.git/info/lfs is not required
git config lfs.url https://localhost:9876/
# you can confirm the Endpoint that will be used by running
git lfs env | grep Endpoint