Add the Xenia portage overlay

The portage overlay is only available on Gentoo-based images.

The Xenia portage overlay includes multiple tools such as foxsnapshot to be used on a Xenia system.

For development reasons (or to {doc}create a Xenia root image </development/create-root>), the repository can be added to a Gentoo or Xenia system.

Xenia specific steps

If Xenia Linux is being used, first sync the Gentoo repositories:

The command `emerge-webrsync` is used here as it will fix issues with using emerge in the next step.

:language: bash
:prompts: xenia ~ \#
emerge-webrsync

Next, mount /usr as read-write:

:language: bash
:prompts: xenia ~ \#
mount -o rw,remount /usr

Install eselect-repository:

:language: bash
:prompts: xenia ~ \#
emerge -va eselect-repository

First, add the overlay:

:language: bash
:prompts: xenia ~ \#
eselect repository add xenia-overlay git https://gitlab.com/xenia-group/xenia-overlay

And sync it:

:language: bash
:prompts: xenia ~ \#
emaint sync --repo xenia-overlay

Done!

In their current state, most fox-utils are only available as live ebuilds.

To allow emerge to use these, add the following to /etc/portage/package.accept_keywords/xenia:

xenia-tools/* **