diff --git a/.gitea/workflows/ci-image.yml b/.gitea/workflows/ci-image.yml
index 5059ffd..cf2f52c 100644
--- a/.gitea/workflows/ci-image.yml
+++ b/.gitea/workflows/ci-image.yml
@@ -2,7 +2,7 @@ name: Rebuild CI Image
 
 on:
     schedule:
-        - cron: '0 6 * * 0'
+        - cron: '0 6 * * 1'
     workflow_dispatch:
 
 jobs:
diff --git a/Plugins/ZShell/CMakeLists.txt b/Plugins/ZShell/CMakeLists.txt
index 32c4675..2457613 100644
--- a/Plugins/ZShell/CMakeLists.txt
+++ b/Plugins/ZShell/CMakeLists.txt
@@ -9,7 +9,7 @@ pkg_check_modules(Cava IMPORTED_TARGET libcava QUIET)
 pkg_check_modules(GLIB REQUIRED glib-2.0 gobject-2.0 gio-2.0)
 
 if(NOT Cava_FOUND)
-    pkg_check_modules(Cava IMPORTED_TARGET cava QUIET)
+    pkg_check_modules(Cava IMPORTED_TARGET cava REQUIRED)
 endif()
 
 if(NOT TARGET Sensors::Sensors)
diff --git a/ci/Dockerfile b/ci/Dockerfile
index 0e49d21..dd94cce 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -25,5 +25,19 @@ RUN pacman -S --noconfirm \
     libqalculate \
     pipewire \
     aubio \
+    cava \
     lm_sensors \
     glib2
+
+# AUR: libcava (provides development headers for cava)
+RUN pacman -S --needed --noconfirm sudo && \
+    useradd -m builder && \
+    echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers && \
+    su builder -c " \
+        git clone https://aur.archlinux.org/libcava.git /tmp/libcava && \
+        cd /tmp/libcava && \
+        makepkg -si --noconfirm \
+    " && \
+    rm -rf /tmp/libcava && \
+    userdel -r builder && \
+    sed -i '/^builder/d' /etc/sudoers