diff --git a/.github/workflows/reusable-build.yml b/.github/workflows/reusable-build.yml
index 965bb132..9bc25450 100644
--- a/.github/workflows/reusable-build.yml
+++ b/.github/workflows/reusable-build.yml
@@ -191,6 +191,8 @@ jobs:
 
       - name: Populate Manifest
         env:
+          IMAGE_REGISTRY: ${{ inputs.image-registry }}
+          IMAGE_NAME: ${{ inputs.image-name }}
           MANIFEST: ${{ steps.create-manifest.outputs.MANIFEST }}
           PLATFORMS: ${{ inputs.platforms }}
           DIGESTS_JSON: ${{ steps.load-outputs.outputs.DIGESTS_JSON }}
@@ -203,7 +205,7 @@ jobs:
 
             podman manifest add $MANIFEST \
               --arch $platform \
-              $IMAGE_REGISTRY@$DIGEST
+              $IMAGE_REGISTRY/$IMAGE_NAME@$DIGEST
           done
 
       - name: Login to GHCR
diff --git a/install.sh b/install.sh
index 63423b29..891ccf33 100755
--- a/install.sh
+++ b/install.sh
@@ -82,9 +82,6 @@ fi
 # run common packages script
 /ctx/packages.sh
 
-## install packages direct from github
-/ctx/github-release-install.sh sigstore/cosign x86_64
-
 # use CoreOS' generator for emergency/rescue boot
 # see detail: https://github.com/ublue-os/main/issues/653
 CSFG=/usr/lib/systemd/system-generators/coreos-sulogin-force-generator