Investigate XDG_CONFIG_HOME

[DavidJFelix]

$XDG_CONFIG_HOME is used by a number of programs including git to place config dotfiles in a common directory.
By default it is ~/.config but could be overridden.

I should investigate using it for OSX which does not set this value and investigate setting it explicitly in linux to ensure they both point at the same location.

I should also move my config files to that new location and remove code that implicitly references it, for example the global git ignore: https://git-scm.com/docs/gitignore

[DavidJFelix]

https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html