ubermuda/atoum — comment on commit 468444c69720ad7075163a1d88c8cda3282b195d
File:  line 0
By mageekguy:

Moreover, with your solution, if a config file is found in /, it will overwrite the config file found in the user's home directory and the config file found in the atom directory.
Perhaps that the best solution is that the config file in the atoum directory overwrite the config file in the user's home directory which overwrite the / config file, like in case of ~/.gitconfig and project/git/config.