From f8fd8a3d9991c9e16628a8ee89afef20926ce2b8 Mon Sep 17 00:00:00 2001
From: moons <moons@moons14.com>
Date: Thu, 6 Aug 2026 17:13:02 +0900
Subject: [PATCH] wallpaper engine

---
 hosts/default.nix                                   | 1 +
 modules/profiles/README.md                          | 5 +++++
 modules/profiles/interface/linux-desktop/home.nix   | 2 --
 modules/profiles/interface/linux-desktop/meta.nix   | 1 -
 modules/profiles/interface/wallpaperengine/home.nix | 3 +++
 modules/profiles/interface/wallpaperengine/meta.nix | 7 +++++++
 6 files changed, 16 insertions(+), 3 deletions(-)
 create mode 100644 modules/profiles/interface/wallpaperengine/home.nix
 create mode 100644 modules/profiles/interface/wallpaperengine/meta.nix

diff --git a/hosts/default.nix b/hosts/default.nix
index a3dbea9..bf00afa 100644
--- a/hosts/default.nix
+++ b/hosts/default.nix
@@ -104,6 +104,7 @@
       "interface.cli"
       "interface.labwc"
       "interface.niri"
+      "interface.wallpaperengine"
       "platform.intel-nvidia-desktop"
       "security.secrets"
       "security.secure-boot"
diff --git a/modules/profiles/README.md b/modules/profiles/README.md
index 45e8803..93891ae 100644
--- a/modules/profiles/README.md
+++ b/modules/profiles/README.md
@@ -30,6 +30,7 @@ required on every supported host.
 | `interface.linux-desktop`            | NixOS with Home Manager                       |
 | `interface.labwc`                    | NixOS with Home Manager                       |
 | `interface.niri`                     | NixOS with Home Manager                       |
+| `interface.wallpaperengine`          | NixOS with Home Manager                       |
 | `platform.nixos`                     | NixOS                                         |
 | `platform.desktop`                   | Physical NixOS desktop                        |
 | `platform.intel-nvidia-desktop`      | Intel/NVIDIA physical NixOS desktop           |
@@ -58,6 +59,10 @@ selects labwc. A daily-use macOS development machine can combine
 `interface.macos`, `workload.development`, and `workload.personal`. Hardware
 support does not implicitly select an interface or workload.
 
+`interface.wallpaperengine` is an opt-in Linux desktop appearance profile. It
+enables Wallpaper Engine and disables Noctalia's wallpaper surface, so hosts
+without this profile retain Noctalia's configured wallpaper.
+
 `workload.personal` provides Pear Desktop on both NixOS and macOS. Home Manager
 enables performance improvements, synced lyrics, tracker blocking, the album
 color theme, and custom output-device selection while preserving user-owned
diff --git a/modules/profiles/interface/linux-desktop/home.nix b/modules/profiles/interface/linux-desktop/home.nix
index dda1922..5358a67 100644
--- a/modules/profiles/interface/linux-desktop/home.nix
+++ b/modules/profiles/interface/linux-desktop/home.nix
@@ -4,8 +4,6 @@
     pkgs.playerctl
   ];
 
-  programs.noctalia.settings.wallpaper.enabled = false;
-
   xdg.userDirs = {
     enable = true;
     createDirectories = true;
diff --git a/modules/profiles/interface/linux-desktop/meta.nix b/modules/profiles/interface/linux-desktop/meta.nix
index c1fcce7..b2ef1af 100644
--- a/modules/profiles/interface/linux-desktop/meta.nix
+++ b/modules/profiles/interface/linux-desktop/meta.nix
@@ -11,7 +11,6 @@
     "applications.ghostty"
     "applications.gtk"
     "applications.loupe"
-    "applications.linux-wallpaperengine"
     "applications.nautilus"
     "applications.nani"
     "applications.papers"
diff --git a/modules/profiles/interface/wallpaperengine/home.nix b/modules/profiles/interface/wallpaperengine/home.nix
new file mode 100644
index 0000000..53a066e
--- /dev/null
+++ b/modules/profiles/interface/wallpaperengine/home.nix
@@ -0,0 +1,3 @@
+{
+  programs.noctalia.settings.wallpaper.enabled = false;
+}
diff --git a/modules/profiles/interface/wallpaperengine/meta.nix b/modules/profiles/interface/wallpaperengine/meta.nix
new file mode 100644
index 0000000..6947812
--- /dev/null
+++ b/modules/profiles/interface/wallpaperengine/meta.nix
@@ -0,0 +1,7 @@
+{
+  description = "Wallpaper Engine backgrounds for Linux desktop sessions";
+
+  includes = [
+    "applications.linux-wallpaperengine"
+  ];
+}