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Q&A How to manage user-specific application data on Linux?

Indeed, the $HOME/.application-name is the old way. Doing that nowadays is frowned upon (this is an example of what happens if you try), mostly because, as you said, it clutters the home directory....

posted 2y ago by Quasímodo‭

Answer
#1: Initial revision by user avatar Quasímodo‭ · 2022-08-11T19:58:33Z (over 2 years ago)
Indeed, the `$HOME/.application-name` is the old way. Doing that nowadays is frowned upon ([this is an example of what happens if you try](https://bugs.launchpad.net/archlinux/+source/snapd/+bug/1575053?comments=all)), mostly because, as you said, it clutters the home directory.

Instead, stick to the [XDG Base Directory Specification](https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html). The most important points are:

> - There is a single base directory relative to which user-specific data files should be written. This directory is defined by the environment variable `$XDG_DATA_HOME`.
>
> - There is a single base directory relative to which user-specific configuration files should be written. This directory is defined by the environment variable `$XDG_CONFIG_HOME`. 

They _usually_ boil down to `$HOME/.local/share` and `$HOME/.config`, and, as the document says, those paths should be assumed if the corresponding environment variables are unset or empty.