diff --git a/README.md b/README.md
index 93186ff..b3b1f4d 100644
--- a/README.md
+++ b/README.md
@@ -67,8 +67,21 @@ Then `chezmoi apply`.
 - 6 Lua `hl.monitor(...)` rules (3 home + 3 office) — desc-keyed so the right machine picks the right monitors automatically.
 - Cursor: Catppuccin Mocha Teal (Hyprcursor) with Catppuccin Mocha Green as XCursor fallback.
 - Electron / fcitx5 / GTK theming env vars set centrally.
-- Noctalia v5 owns the desktop shell layer (bar, launcher, notifications, wallpaper, lock screen, idle, screenshots, clipboard).
-- Wallpapers are deployed by chezmoi to `~/.config/wallpapers`; Noctalia reads that path directly.
+- Noctalia v5 owns the desktop shell layer (bar, launcher, notifications, wallpaper by default, lock screen, idle, screenshots, clipboard).
+- Wallpapers are deployed by chezmoi to `~/.config/wallpapers`; Noctalia reads that path directly unless Wallpaper Engine is enabled.
+- Wallpaper Engine is opt-in through `data.wallpaperEngine.arguments`; when configured, Hyprland starts `linux-wallpaperengine-start` and Noctalia's static wallpaper layer is disabled.
+
+### Wallpaper Engine (Hyprland)
+
+Arch/CachyOS installs `linux-wallpaperengine-git` via `paru`; other Linux machines need a `linux-wallpaperengine` binary on `PATH`. Install and own the official Steam Wallpaper Engine assets first. Upstream auto-detects the usual Steam library paths, then `arguments` are passed directly to `linux-wallpaperengine` at Hyprland startup:
+
+```toml
+[data.wallpaperEngine]
+enabled = true
+arguments = ["--silent", "--fps", "30", "--scaling", "fill", "1845706469"]
+```
+
+Use the same argument list shape for multi-monitor commands, for example `--screen-root ... --bg ...` from upstream's README.
 
 ## Keymappings
 
@@ -164,6 +177,7 @@ Then `chezmoi apply`.
 
 - [`hyprland`](https://hyprland.org) — Wayland compositor.
 - [`noctalia`](https://github.com/noctalia-dev/noctalia) — desktop shell: bar, launcher, notifications, wallpaper, lock screen, idle behavior, screenshots, clipboard, and control center.
+- [`linux-wallpaperengine`](https://github.com/Almamu/linux-wallpaperengine) — opt-in live wallpapers from Steam Wallpaper Engine assets on Hyprland.
 - [`sddm`](https://github.com/sddm/sddm) — bootstrap and fallback display manager for fresh Arch installs.
 - [`greetd`](https://git.sr.ht/~kennylevinsen/greetd) + [`Noctalia Greeter`](https://github.com/noctalia-dev/noctalia-greeter) — final Wayland login greeter after AUR packages are installed.
 - [`fcitx5`](https://github.com/fcitx/fcitx5) + chewing — Chinese input.
@@ -224,10 +238,11 @@ Then `chezmoi apply`.
 ## Layout
 
 ```
-home/                            # chezmoi source root (.chezmoiroot=home)
-├── .chezmoidata/packages.yaml   # canonical package list (pacman + apt)
-├── .chezmoiexternal.toml.tmpl   # auto-pulled theme files
-├── .chezmoiscripts/             # run_once / run_onchange bootstrap
-├── .chezmoitemplates/           # macOS install template (Brewfile pass-thru)
-└── dot_config/                  # → ~/.config/...
+home/                              # chezmoi source root (.chezmoiroot=home)
+├── .chezmoidata/                  # package list + feature defaults
+├── .chezmoiexternal.toml.tmpl     # auto-pulled theme files
+├── .chezmoiscripts/               # run_once / run_onchange bootstrap
+├── .chezmoitemplates/             # macOS install template (Brewfile pass-thru)
+├── dot_config/                    # → ~/.config/...
+└── dot_local/                     # → ~/.local/...
 ```
diff --git a/home/.chezmoidata/packages.yaml b/home/.chezmoidata/packages.yaml
index 3c093b4..fc7255f 100644
--- a/home/.chezmoidata/packages.yaml
+++ b/home/.chezmoidata/packages.yaml
@@ -37,6 +37,7 @@ packages:
       - libnewt
       - libreoffice-fresh
       - linux-headers
+      - linux-wallpaperengine-git
       - localsend-bin
       - mission-center
       - mattermost-desktop
diff --git a/home/.chezmoidata/wallpaper-engine.yaml b/home/.chezmoidata/wallpaper-engine.yaml
new file mode 100644
index 0000000..9420cf0
--- /dev/null
+++ b/home/.chezmoidata/wallpaper-engine.yaml
@@ -0,0 +1,3 @@
+wallpaperEngine:
+  enabled: false
+  arguments: []
diff --git a/home/.chezmoiignore b/home/.chezmoiignore
index 3de645d..00a987d 100644
--- a/home/.chezmoiignore
+++ b/home/.chezmoiignore
@@ -29,6 +29,7 @@ Library/**
 .config/paru/**
 .local/share/applications
 .local/share/applications/**
+.local/bin/linux-wallpaperengine-start
 {{- else if not (or (eq .chezmoi.osRelease.id "arch") (eq .chezmoi.osRelease.id "cachyos")) }}
 .config/paru
 .config/paru/**
diff --git a/home/.chezmoiscripts/run_onchange_after_0-install-packages.sh.tmpl b/home/.chezmoiscripts/run_onchange_after_0-install-packages.sh.tmpl
index 1cfb615..0eed8ff 100644
--- a/home/.chezmoiscripts/run_onchange_after_0-install-packages.sh.tmpl
+++ b/home/.chezmoiscripts/run_onchange_after_0-install-packages.sh.tmpl
@@ -34,7 +34,25 @@ retry() {
     {{ if .packages.sharedArch.pacman }}
     # Use -Syu to ensure system is up-to-date and libalpm version matches paru
     sudo pacman -Syu --noconfirm
-    retry paru -S --needed --noconfirm {{ range .packages.sharedArch.pacman }}{{ . }} {{ end }}
+    arch_packages=(
+      {{- range .packages.sharedArch.pacman }}
+      {{ . | quote }}
+      {{- end }}
+    )
+    if [[ "${GITHUB_ACTIONS:-}" == "true" ]]; then
+      filtered_packages=()
+      for package in "${arch_packages[@]}"; do
+        case "$package" in
+          linux-wallpaperengine-git)
+            echo -e "${GREEN}Skipping linux-wallpaperengine-git in CI (large AUR source build)${NC}"
+            continue
+            ;;
+        esac
+        filtered_packages+=("$package")
+      done
+      arch_packages=("${filtered_packages[@]}")
+    fi
+    retry paru -S --needed --noconfirm "${arch_packages[@]}"
     {{ end }}
     
     {{ if eq $osid "cachyos" }}
@@ -82,4 +100,3 @@ retry() {
 {{ end }}
 
 echo -e "${GREEN}Package installation complete!${NC}"
-
diff --git a/home/dot_config/hypr/hyprland.lua.tmpl b/home/dot_config/hypr/hyprland.lua.tmpl
index b1d1df8..a5f232f 100644
--- a/home/dot_config/hypr/hyprland.lua.tmpl
+++ b/home/dot_config/hypr/hyprland.lua.tmpl
@@ -89,6 +89,7 @@ hl.on("hyprland.start", function()
     )
     hl.exec_cmd("blueman-applet")
     hl.exec_cmd("fcitx5 -d")
+    hl.exec_cmd({{ printf "%s/.local/bin/linux-wallpaperengine-start" .chezmoi.homeDir | quote }})
     hl.exec_cmd("noctalia")
 end)
 
diff --git a/home/dot_config/noctalia/config.toml b/home/dot_config/noctalia/config.toml.tmpl
similarity index 93%
rename from home/dot_config/noctalia/config.toml
rename to home/dot_config/noctalia/config.toml.tmpl
index aad980d..72d703a 100644
--- a/home/dot_config/noctalia/config.toml
+++ b/home/dot_config/noctalia/config.toml.tmpl
@@ -20,7 +20,8 @@ freeze_screen = false
 pipe_to_command = false
 
 [wallpaper]
-enabled = true
+# linux-wallpaperengine draws its own background layer when configured.
+enabled = {{ if and .wallpaperEngine.enabled (gt (len .wallpaperEngine.arguments) 0) }}false{{ else }}true{{ end }}
 fill_mode = "crop"
 directory = "~/.config/wallpapers"
 transition_on_startup = false
diff --git a/home/dot_local/bin/executable_linux-wallpaperengine-start.tmpl b/home/dot_local/bin/executable_linux-wallpaperengine-start.tmpl
new file mode 100644
index 0000000..d196b32
--- /dev/null
+++ b/home/dot_local/bin/executable_linux-wallpaperengine-start.tmpl
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+enabled="{{ .wallpaperEngine.enabled }}"
+args=(
+{{- range .wallpaperEngine.arguments }}
+  {{ . | quote }}
+{{- end }}
+)
+
+if [[ "$enabled" != "true" || ${#args[@]} -eq 0 ]]; then
+  exit 0
+fi
+
+if ! command -v linux-wallpaperengine >/dev/null 2>&1; then
+  echo "linux-wallpaperengine is not installed; run chezmoi apply after package installation." >&2
+  exit 0
+fi
+
+exec linux-wallpaperengine "${args[@]}"