diff --git a/examples/json_to_audio.py b/examples/json_to_audio.py
index a4be6ec..e1ea38e 100644
--- a/examples/json_to_audio.py
+++ b/examples/json_to_audio.py
@@ -1,3 +1,6 @@
+import copy
+import os.path
+
 from Crypto.Cipher import PKCS1_OAEP
 from Crypto.PublicKey import RSA
 from Crypto.Cipher import AES
@@ -50,7 +53,15 @@ def main():
                         help="Path of the output ogg file",
                         default="audio.ogg", type=str)
     args = parser.parse_args()
-    get_sf(args)
+    if os.path.isdir(args.document_gz):
+        documents = [filepath for filepath in os.listdir(args.document_gz) if filepath.endswith(".json.gz")]
+        for document in documents:
+            args_cp = copy.copy(args)
+            args_cp.document_gz = os.path.join(args.document_gz, document)
+            args_cp.ogg_file = os.path.join(args.document_gz, document[:document.rfind(".json.gz")]+".ogg")
+            get_sf(args_cp)
+    else:
+        get_sf(args)
 
 
 if __name__ == "__main__":
diff --git a/services/ansible_openvpn/docker/dashboard/Dockerfile b/services/ansible_openvpn/docker/dashboard/Dockerfile
index 9a39b71..7174d10 100644
--- a/services/ansible_openvpn/docker/dashboard/Dockerfile
+++ b/services/ansible_openvpn/docker/dashboard/Dockerfile
@@ -9,8 +9,8 @@ COPY . /dashboard
 
 COPY flask_service.sh /etc/entrypoint.d/
 
-RUN chmod +x /etc/entrypoint.d/flask_service.sh \
-    --mount=type=cache,target=/root/.cache/pip \
-    pip3 install -r requirements.txt
+RUN chmod +x /etc/entrypoint.d/flask_service.sh
 
+RUN --mount=type=cache,target=/root/.cache/pip \
+    pip3 install -r requirements.txt
 
diff --git a/services/ansible_openvpn/docker/docker-compose.yml b/services/ansible_openvpn/docker/docker-compose.yml
index 944e69c..e2bcce8 100644
--- a/services/ansible_openvpn/docker/docker-compose.yml
+++ b/services/ansible_openvpn/docker/docker-compose.yml
@@ -47,6 +47,7 @@ services:
     network_mode: "service:openvpn"
     volumes:
       - semaphore-data:/home/semaphore/data/:z
+      - dashboard_pubkeys:/home/semaphore/authorized_keys:z
     depends_on:
       - mysql # for postgres, change to: postgres
       - openvpn
@@ -178,10 +179,19 @@ services:
     build:
      context: dashboard
      target: builder
+    environment:
+      - SSH_USERS=dashboard:1001:1001
     ports:
       - '8000:8000'
+    volumes:
+      - dashboard_keys:/etc/ssh/keys
+      - dashboard_pubkeys:/etc/authorized_keys/dashboard
 volumes:
   semaphore-mysql:
+  dashboard_keys:
+    driver: local
+  dashboard_pubkeys:
+    driver: local
   semaphore-data: # storage of raw sensor data
   certs:
     driver: local
diff --git a/services/ansible_openvpn/playbooks/fetch_and_process.yml b/services/ansible_openvpn/playbooks/fetch_and_process.yml
index a743e2d..217b633 100644
--- a/services/ansible_openvpn/playbooks/fetch_and_process.yml
+++ b/services/ansible_openvpn/playbooks/fetch_and_process.yml
@@ -5,6 +5,9 @@
     - ansible.builtin.debug:
         msg: Fetch and process
 
+- name: Sync RPI inventory
+  ansible.builtin.import_playbook: fetch_openvpn_hosts.yml
+
 - name: Fetch RPI data using rsync
   ansible.builtin.import_playbook: fetch_rpi_data.yml