diff --git a/odoo-tecnativa/README.org b/odoo-tecnativa/README.org
new file mode 100644
index 0000000..fd06fc7
--- /dev/null
+++ b/odoo-tecnativa/README.org
@@ -0,0 +1,40 @@
+
+
+Odoo-tecnativa is a odoo image containing all source and add-ons because
+we want to certify the whole image.
+
+So this means there are no builds being managed by compose, and no injection
+of code.
+
+
+* Usage
+
+** dbfilter
+
+With image ~16.0~, an advanced version of ~dbfilter~ is installed. Here
+a few examples:
+
+#+begin_src yaml
+odoo:
+  # ..
+  options:
+    dbfilter:
+      ## DOMAIN_REGEX: DBFILTER
+      '^www.domain.org$': '^bar$'          ## domain `www.domain.org` can only see `bar`.
+      '^foo\.': 'foo_.*'                   ## domain starting with `foo.` can see db `foo_`
+      '^(?P<name>[^.]+)\.': '%{name}s_.*'  ## domain starting with `<PREFIX>.` can see db `PREFIX_`
+      '': 'other_.*'                       ## all domains can see db 'other_*'
+
+      ## Don't forget to configure the domains in the web-proxy part !
+  relations:
+    web-proxy:
+      apache:
+        domain: www.domain.org
+        aliases:
+        - foo.otherdomain.com
+        - bar.wiz.eu
+        - test.domain.org
+#+end_src
+
+If there's only one database seen because of the ~dbfilter~, odoo will
+use it by default.
diff --git a/odoo-tecnativa/README.rst b/odoo-tecnativa/README.rst
deleted file mode 100644
index 949ff9a..0000000
--- a/odoo-tecnativa/README.rst
+++ /dev/null
@@ -1,8 +0,0 @@
-
-
-Odoo-tecnativa is a odoo image containing all source and add-ons because
-we want to certify the whole image.
-
-So this means there are no builds being managed by compose, and no injection
-of code.
-
diff --git a/odoo-tecnativa/hooks/init b/odoo-tecnativa/hooks/init
index 4b75993..504af6b 100755
--- a/odoo-tecnativa/hooks/init
+++ b/odoo-tecnativa/hooks/init
@@ -36,6 +36,39 @@ else
     modules="base,${modules}"
 fi
 
+cmd_args=()
+
+## dbfilter management
+service_def=$(get_compose_service_def "$SERVICE_NAME") || return 1
+
+dbfilter=$(e "$service_def" | yq e -r=false '.options.dbfilter') || true
+if [ -n "$dbfilter" ]; then
+    type=$(e "$dbfilter" | yq e "type")
+    case "${type:2}" in
+        str)
+            dbfilter=$(e "$dbfilter" | yq e -o=json '.')
+            cmd_args+=("--db-filter=${dbfilter}")
+            ;;
+        map)
+            python_expr="["
+            while read-0 key val; do
+                [[ "$key" == "null" ]] && key="None"
+                python_expr+="(${key//\$/\$\$}, ${val//\$/\$\$}),"
+            done < <(e "$dbfilter" | yq -o=json -0 'to_entries | .[] | [.key, .value] | .[]')
+            python_expr+="]"
+            cmd_args+=("--db-filter=${python_expr}")
+            ;;
+        null)
+            :
+            ;;
+        *)
+            err "Invalid value for ${WHITE}dbfilter${NORMAL}: ${dbfilter}" >&2
+            echo "  It should be a string or a key/value mapping" >&2
+            exit 1
+            ;;
+    esac
+fi
+
 
 ## config file
 conf=$(options-get conf 2>/dev/null) || true
@@ -65,4 +98,10 @@ $SERVICE_NAME:
   command:
     - \"--workers=${workers}\"
     - \"-i ${modules}\"
+$(
+for arg in "${cmd_args[@]}"; do
+    echo "    - |"
+    e "$arg" | prefix "      "
+done
+)
 "