diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index aad099f..ebe7322 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -44,9 +44,20 @@ jobs:
         e2e/repeat.sh kubectl apply --server-side -f https://github.com/kserve/kserve/releases/download/v0.14.0/kserve-cluster-resources.yaml
         kubectl patch configmap/inferenceservice-config -n kserve --type=strategic -p '{"data": {"deploy": "{\"defaultDeploymentMode\": \"RawDeployment\"}"}}'
         e2e/enable-modelcar.sh
-    - name: Load image in KinD for amd64
-      run: |
+    - name: Run OLOT tutorial of README, and load image in KinD for amd64
+      run: | 
+        IMAGE_DIR=download
+        OCI_REGISTRY_SOURCE=quay.io/mmortari/hello-world-wait:latest
+        OCI_REGISTRY_DESTINATION=localhost:5001/nstestorg/modelcar
+        rm -rf $IMAGE_DIR
+        skopeo copy --multi-arch all docker://${OCI_REGISTRY_SOURCE} oci:${IMAGE_DIR}:latest
+        poetry run olot $IMAGE_DIR --modelcard tests/data/sample-model/README.md tests/data/sample-model/model.joblib
+        # copy modelcar from oci-layout to the local docker registry
+        skopeo copy --tls-verify=false --multi-arch all oci:${IMAGE_DIR}:latest docker://${OCI_REGISTRY_DESTINATION}
+        # make sure the annotation is present
         digest=$(skopeo inspect --tls-verify=false --raw docker://localhost:5001/nstestorg/modelcar | jq -r '.manifests[] | select(.platform.architecture == "amd64") | .digest')
+        skopeo inspect --tls-verify=false docker://${OCI_REGISTRY_DESTINATION}@$digest --raw | jq -e '.layers | last | has("annotations")'
+        # tag amd64 as modelcar:v1 and load image in KinD cluster
         skopeo copy --src-tls-verify=false docker://localhost:5001/nstestorg/modelcar@$digest docker-daemon:localhost:5001/nstestorg/modelcar:v1
         kind load docker-image -n "kind" "localhost:5001/nstestorg/modelcar:v1"
     - name: Apply Isvc using Modelcar # since the enable modelcar restart controller pod, better guard the kubectl apply
diff --git a/README.md b/README.md
index e0afa51..5647294 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,8 @@ skopeo copy --multi-arch all docker://${OCI_REGISTRY_SOURCE} oci:${IMAGE_DIR}:la
 # oras copy --to-oci-layout $OCI_REGISTRY_SOURCE ./${IMAGE_DIR}:latest
 # chmod +w ${IMAGE_DIR}/blobs/sha256/*
 
-# Appends to the image found in `download` the files `model.joblib` and `README.md`
-poetry run olot $IMAGE_DIR tests/data/sample-model/model.joblib tests/data/sample-model/README.md
+# Appends to the image found in `download` the files `model.joblib` and as ModelCarD the `README.md`
+poetry run olot $IMAGE_DIR --modelcard tests/data/sample-model/README.md tests/data/sample-model/model.joblib
 
 # Pushes the (updated) image found in `download` folder to the registry `quay.io/mmortari/demo20241208` with tag `latest`
 skopeo copy --multi-arch all oci:${IMAGE_DIR}:latest docker://${OCI_REGISTRY_DESTINATION}
@@ -64,6 +64,10 @@ Cleanup your local image
 podman image rm quay.io/mmortari/demo20241208:latest
 ```
 
+### Dev notes
+
+If copying the resulting image to local filesystem oci-layout using skopeo, make sure to enable `--dest-oci-accept-uncompressed-layers` option.
+
 ### As a Python Package
 
 Install the package
diff --git a/olot/basics.py b/olot/basics.py
index a6174ee..0894ec4 100644
--- a/olot/basics.py
+++ b/olot/basics.py
@@ -68,7 +68,9 @@ def oci_layers_on_top(ocilayout: typing.Union[str, os.PathLike], model_files: Li
         config_sha = mc_json_hash
         manifest.config.digest = "sha256:" + config_sha
         manifest.config.size = os.stat(ocilayout / "blobs" / "sha256" / config_sha).st_size
-        manifest.annotations["io.opendatahub.temp.author"] = "olot" # type:ignore
+        if manifest.annotations is None:
+            manifest.annotations = {}
+        manifest.annotations["io.opendatahub.temp.author"] = "olot"
         manifest_json = manifest.model_dump_json(exclude_none=True)
         with open(ocilayout / "blobs" / "sha256" / manifest_hash, "w") as cf:
             cf.write(manifest_json)
diff --git a/olot/cli.py b/olot/cli.py
index dfa707c..58e751a 100644
--- a/olot/cli.py
+++ b/olot/cli.py
@@ -1,3 +1,4 @@
+from os import PathLike
 from pathlib import Path
 import click
 
@@ -7,7 +8,8 @@
 
 
 @click.command()
+@click.option("-m", "--modelcard", type=click.Path(exists=True, file_okay=True, dir_okay=False))
 @click.argument('ocilayout', type=click.Path(exists=True, file_okay=False, dir_okay=True))
 @click.argument('model_files', nargs=-1)
-def cli(ocilayout: str, model_files):
-    oci_layers_on_top(Path(ocilayout), model_files)
+def cli(ocilayout: str, modelcard: PathLike, model_files):
+    oci_layers_on_top(Path(ocilayout), model_files, modelcard)