diff --git a/readme-vars.yml b/readme-vars.yml
index 1e3de78..82f433d 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -16,7 +16,7 @@ common_param_env_vars_enabled: true
 param_container_name: "{{ project_name }}"
 param_usage_include_vols: true
 param_volumes:
-  - { vol_path: "/config", vol_host_path: "/path/to/{{ project_name }}/config", desc: "Persistent config files" }
+  - {vol_path: "/config", vol_host_path: "/path/to/{{ project_name }}/config", desc: "Persistent config files"}
   - {vol_path: "/data", vol_host_path: "/path/to/data", desc: "Where Wiki.js data is stored."}
 param_usage_include_ports: true
 param_ports:
@@ -30,6 +30,9 @@ opt_param_env_vars:
   - {env_var: "DB_NAME", env_value: "", desc: "DB name (postgres only)"}
   - {env_var: "DB_USER", env_value: "", desc: "DB username (postgres only)"}
   - {env_var: "DB_PASS", env_value: "", desc: "DB password (postgres only)"}
+
+readonly_supported: true
+
 # application setup block
 app_setup_block_enabled: true
 app_setup_block: |
diff --git a/root/defaults/config.yml b/root/defaults/config.yml
index 47cdb88..0fc7ebf 100644
--- a/root/defaults/config.yml
+++ b/root/defaults/config.yml
@@ -21,14 +21,14 @@ port: 3000
 # - sqlite = SQLite 3.9 or later
 
 db:
-  type: {{DB_TYPE}}
+  type: $(DB_TYPE)
 
   # PostgreSQL / MySQL / MariaDB / MS SQL Server only:
-  host: {{DB_HOST}}
-  port: {{DB_PORT}}
-  user: {{DB_USER}}
-  pass: {{DB_PASS}}
-  db: {{DB_NAME}}
+  host: '$(DB_HOST)'
+  port: $(DB_PORT)
+  user: '$(DB_USER)'
+  pass: '$(DB_PASS)'
+  db: $(DB_NAME)
   ssl: false
 
   # Optional - PostgreSQL / MySQL / MariaDB only:
diff --git a/root/etc/s6-overlay/s6-rc.d/init-wikijs-config/run b/root/etc/s6-overlay/s6-rc.d/init-wikijs-config/run
index 14d2899..d897f67 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-wikijs-config/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-wikijs-config/run
@@ -1,31 +1,19 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
-mkdir -p /data
-
-DB_TYPE=${DB_TYPE:-sqlite}
-DB_HOST=${DB_HOST:-mariadb}
-DB_PORT=${DB_PORT:-3306}
-DB_USER=${DB_USER:-root}
-DB_PASS=${DB_PASS:-root}
-DB_NAME=${DB_NAME:-wikijs}
+if [[ -z ${DB_TYPE} ]]; then
+    printf "sqlite" > /run/s6/container_environment/DB_TYPE
+fi
 
 if [[ ! -f "/config/config.yml" ]]; then
     cp /defaults/config.yml /config/config.yml
-
-    sed -i "s|{{DB_TYPE}}|"${DB_TYPE}"|g" /config/config.yml
-    sed -i "s|{{DB_HOST}}|"${DB_HOST}"|g" /config/config.yml
-    sed -i "s|{{DB_PORT}}|"${DB_PORT}"|g" /config/config.yml
-    sed -i "s|{{DB_USER}}|"${DB_USER}"|g" /config/config.yml
-    sed -i "s|{{DB_PASS}}|"${DB_PASS}"|g" /config/config.yml
-    sed -i "s|{{DB_NAME}}|"${DB_NAME}"|g" /config/config.yml
 fi
 
-ln -sf /config/config.yml /app/wiki/config.yml
-
 # permissions
 lsiown -R abc:abc \
-    /app/wiki/data \
     /config
-lsiown abc:abc \
-    /data
+
+if grep -qe ' /data ' /proc/mounts; then
+    lsiown abc:abc \
+        /data
+fi
diff --git a/root/etc/s6-overlay/s6-rc.d/svc-wikijs/run b/root/etc/s6-overlay/s6-rc.d/svc-wikijs/run
index a968f73..db6831a 100755
--- a/root/etc/s6-overlay/s6-rc.d/svc-wikijs/run
+++ b/root/etc/s6-overlay/s6-rc.d/svc-wikijs/run
@@ -1,6 +1,8 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
+export CONFIG_FILE="/config/config.yml"
+
 exec \
     s6-notifyoncheck -d -n 300 -w 1000 -c "nc -z localhost 3000" \
         cd /app/wiki s6-setuidgid abc /usr/bin/node server