See the MNIST README.md.
mnist-tool has no dependencies outside of the package dependencies
represented in xcode.
When you run the tool it will download the test/train datasets and store them in a specified directory (see run arguments -- default is /tmp).
Simply build the project in xcode.
To run this in Xcode simply press cmd-opt-r to set the scheme arguments. For example:
--data /tmp
Then cmd-r to run.
mnist-tool can also be run from the command line if built from Xcode, but
the DYLD_FRAMEWORK_PATH must be set so that the frameworks and bundles can be found:
DYLD_FRAMEWORK_PATH=~/Library/Developer/Xcode/DerivedData/mlx-examples-swift-ceuohnhzsownvsbbleukxoksddja/Build/Products/Debug ~/Library/Developer/Xcode/DerivedData/mlx-examples-swift-ceuohnhzsownvsbbleukxoksddja/Build/Products/Debug/mnist-tool --data /tmp