diff --git a/README.md b/README.md
index 2b150c5..86765a1 100644
--- a/README.md
+++ b/README.md
@@ -7,16 +7,59 @@ Helm's [documentation](https://helm.sh/docs) to get started.
 
 Once Helm has been set up correctly, add the repo as follows:
 
+```
     helm repo add flyimg https://charts.flyimg.io
-
+```
 If you had already added this repo earlier, run `helm repo update` to retrieve
 the latest versions of the packages.  You can then run `helm search repo
 flyimg` to see the charts.
 
 To install the flyimg chart:
 
+```
     helm install my-flyimg flyimg/flyimg
+```
+
+### Customizing Installation
+
+You can customize your Flyimg installation by providing a custom values.yaml file. For example:
+
+```
+    helm install <release_name> flyimg/flyimg -f values.yaml
+```
+
+Alternatively, you can pass in parameters directly via the command line:
+
+```
+    helm install <release_name> flyimg/flyimg \
+        --set key1=value1,key2=value2
+```
+
+To override the default configuration for Flyimg, you can do that by adding the needed changes in the `parameters:` section in your values.yaml file as the following example:
+
+```yaml
+parameters:
+    storage_system: local
+    aws_s3:
+        access_id: 'xxxxxxx'
+        secret_key: 'xxxxxx'
+        region: 'eu-central-1'
+        bucket_name: 'xxxxx'
+    ....
+```
+
+## Upgrade Flyimg
+
+To upgrade the Flyimg chart after making changes to your configuration:
+
+```
+    helm upgrade flyimg/flyimg
+```
+
+## Uninstalling Flyimg
 
 To uninstall the chart:
 
+```
     helm delete my-flyimg
+```
diff --git a/charts/flyimg/Chart.yaml b/charts/flyimg/Chart.yaml
index 948c607..3c5cd5a 100644
--- a/charts/flyimg/Chart.yaml
+++ b/charts/flyimg/Chart.yaml
@@ -1,23 +1,20 @@
 apiVersion: v2
 name: flyimg
 description: A Helm chart for Kubernetes for Flyimg app
-
-# A chart can be either an 'application' or a 'library' chart.
-#
-# Application charts are a collection of templates that can be packaged into versioned archives
-# to be deployed.
-#
-# Library charts provide useful utilities or functions for the chart developer. They're included as
-# a dependency of application charts to inject those utilities and functions into the rendering
-# pipeline. Library charts do not define any templates and therefore cannot be deployed.
 type: application
+maintainers:
+  - name: sadok-f
+    email: sadoknet@gmail.com
+    url: https://github.com/sadok-f
+
+keywords:
+  - flyimg
+  - image-resizing
+  - image-optimization
+  - avif
+  - mozjpeg
+  - webp
 
-# This is the chart version. This version number should be incremented each time you make changes
-# to the chart and its templates, including the app version.
-# Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.0
+version: 0.2.1
 
-# This is the version number of the application being deployed. This version number should be
-# incremented each time you make changes to the application. Versions are not expected to
-# follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: 1.4.9
+appVersion: 1.4.12
diff --git a/charts/flyimg/templates/configmap.yaml b/charts/flyimg/templates/configmap.yaml
new file mode 100644
index 0000000..a36ee20
--- /dev/null
+++ b/charts/flyimg/templates/configmap.yaml
@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: flyimg-override-config
+data:
+  override-parameters.yml: |
+    {{- .Values.parameters | toYaml | nindent 4 }}
\ No newline at end of file
diff --git a/charts/flyimg/templates/deployment.yaml b/charts/flyimg/templates/deployment.yaml
index 854ac75..692bb42 100644
--- a/charts/flyimg/templates/deployment.yaml
+++ b/charts/flyimg/templates/deployment.yaml
@@ -27,6 +27,28 @@ spec:
       serviceAccountName: {{ include "flyimg.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      initContainers:
+      - name: copy-original-config
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+        command: ["/bin/sh", "-c"]
+        args:
+        - |
+          cp -R /var/www/html/config/* /config/
+        volumeMounts:
+        - name: shared-config
+          mountPath: /config
+      - name: update-config
+        image: mikefarah/yq:4
+        command: ["/bin/sh", "-c"]
+        args:
+        - |
+          yq eval-all 'select(fileIndex == 0) * select(fileIndex == 1)' /config/parameters.yml /override/override-parameters.yml > /config/merged-parameters.yml
+          mv /config/merged-parameters.yml /config/parameters.yml
+        volumeMounts:
+        - name: shared-config
+          mountPath: /config
+        - name: override-config
+          mountPath: /override
       containers:
         - name: {{ .Chart.Name }}
           securityContext:
@@ -45,8 +67,19 @@ spec:
             httpGet:
               path: /
               port: http
+          volumeMounts:
+          - name: shared-config
+            mountPath: /var/www/html/config
           resources:
-            {{- toYaml .Values.resources | nindent 12 }}
+            {{- toYaml .Values.resources | nindent 12 }}     
+      volumes:
+      - name: shared-config
+        emptyDir: {}
+      - name: override-config
+        configMap:
+          name: flyimg-override-config
+        # optional: true
+
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/charts/flyimg/values.yaml b/charts/flyimg/values.yaml
index 4881764..ba40052 100644
--- a/charts/flyimg/values.yaml
+++ b/charts/flyimg/values.yaml
@@ -77,3 +77,6 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+# To override the default parameters for Flyimg application, check https://github.com/flyimg/flyimg/blob/main/config/parameters.yml
+parameters: