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---
title: Root Overlay
layout: default
parent: Overlays
nav_order: 1
---
# Root Overlay
Files in `iso-profiles/antergos/root-overlay/` are merged into the root squashfs and become part of the installed system.
## Contents
```
root-overlay/
├── etc/
│ ├── os-release # Antergos NeXT branding
│ ├── pacman.conf # Includes [antergos-pkgs] repo
│ ├── sddm.conf.d/
│ │ └── kde_settings.conf # SDDM theme + Wayland session
│ └── skel/
│ └── .config/
│ └── autostart/
│ └── antergos-wallpaper.desktop # One-shot wallpaper setter
└── usr/
└── local/
└── bin/
└── set-antergos-wallpaper.sh # Wallpaper script
```
## Key files
### `etc/os-release`
Identifies the system as "Antergos NeXT" to tools, installers, and the login manager.
### `etc/pacman.conf`
Adds the `[antergos-pkgs]` custom repo so installed systems can receive updates.
### `etc/sddm.conf.d/kde_settings.conf`
Sets the SDDM session to `plasma.desktop` (Wayland) by default.
### `etc/skel/.config/autostart/antergos-wallpaper.desktop`
Runs the wallpaper setter on first login. Uses `X-KDE-autostart-phase=2` to run after Plasma has initialized.
### `usr/local/bin/set-antergos-wallpaper.sh`
Applies the wallpaper via `plasma-apply-wallpaperimage` and creates `~/.config/antergos-wallpaper-set` marker to prevent re-running.