Constants representing the XDG config locations or their standard defaults if not set.

1. Add the dependency to your shard.yml:

   dependencies:
     xdg:
       github: dscottboggs/xdg.cr

2. Run shards install

require "xdg"

XDG.config_file "myapp/config.yml" do |config|
  myapp_config.to_yaml config
end