diff --git a/.github/workflows/test-container.yml b/.github/workflows/test-container.yml
index 602a83d..a60c327 100644
--- a/.github/workflows/test-container.yml
+++ b/.github/workflows/test-container.yml
@@ -19,11 +19,6 @@ jobs:
       - name: Show Docker version
         run: docker version
 
-      - name: Build test image with no cache (${{ matrix.distro }})
-        run: |
-          set -euo pipefail
-          distro="${{ matrix.distro }}" make build-no-cache
-
       - name: Run container tests (${{ matrix.distro }})
         run: |
           set -euo pipefail
diff --git a/.github/workflows/test-e2e.yml b/.github/workflows/test-e2e.yml
index 6842e37..384b6fe 100644
--- a/.github/workflows/test-e2e.yml
+++ b/.github/workflows/test-e2e.yml
@@ -19,11 +19,6 @@ jobs:
       - name: Show Docker version
         run: docker version
 
-      - name: Build test image with no cache (${{ matrix.distro }})
-        run: |
-          set -euo pipefail
-          distro="${{ matrix.distro }}" make build-no-cache
-
       - name: Run E2E tests via make (${{ matrix.distro }})
         run: |
           set -euo pipefail
diff --git a/scripts/installation/run-package.sh b/scripts/installation/run-package.sh
index 4b4d593..d782232 100755
--- a/scripts/installation/run-package.sh
+++ b/scripts/installation/run-package.sh
@@ -8,6 +8,12 @@ source "${SCRIPT_DIR}/lib.sh"
 
 OS_ID="$(detect_os_id)"
 
+# Map Manjaro to Arch
+if [[ "${OS_ID}" == "manjaro" ]]; then
+  echo "[run-package] Mapping OS 'manjaro' → 'arch'"
+  OS_ID="arch"
+fi
+
 echo "[run-package] Detected OS: ${OS_ID}"
 
 case "${OS_ID}" in