Cannot clone on macOS

[jimjag]

The Github repo cannot successfully be cloned on macOS due to case issues related to the 'atomic' file and the 'Atomic' directory. macOS is (normally) case aware but case insensitive and so there is a file system naming clash when cloning:

git clone https://github.com/projectatomic/atomic.git
Cloning into 'atomic'...
remote: Enumerating objects: 2, done.
remote: Counting objects: 100% (2/2), done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 8599 (delta 0), reused 0 (delta 0), pack-reused 8597
Receiving objects: 100% (8599/8599), 5.39 MiB | 27.45 MiB/s, done.
Resolving deltas: 100% (6277/6277), done.
warning: the following paths have collided (e.g. case-sensitive paths
on a case-insensitive filesystem) and only one from the same
colliding group is in the working tree:

'atomic'