Could be possible to switch to use etcetera and use Xdg paths on macOS as well

[lu-zero]

etcetera provides a mean to get the Xdg paths on macOS as well giving a much easier life to people that share their home .config between linux and mac.

I can get you a patch if you thing it is acceptable.

[liuchengxu]

Sounds good to me, feel free to send a PR.