diff --git a/gogocarto/metadata.yml b/gogocarto/metadata.yml
index 05b609b..bb163b3 100644
--- a/gogocarto/metadata.yml
+++ b/gogocarto/metadata.yml
@@ -6,6 +6,9 @@ requires:
     scope: container
 
 
+provides:
+  map-server:
+
 uses:
   publish-dir:
     #constraint: required | recommended | optional
diff --git a/monujo/hooks/init b/monujo/hooks/init
index 6c830f4..8433634 100755
--- a/monujo/hooks/init
+++ b/monujo/hooks/init
@@ -10,18 +10,11 @@
 ## - SERVICE_DATASTORE           Location on host of the DATASTORE of this service
 ## - SERVICE_CONFIGSTORE         Location on host of the CONFIGSTORE of this service
 
+. lib/common
+
 set -e
 
-APP_NAME=monujo
-SOURCE_URL="https://docker.0k.io/downloads/$APP_NAME-0.0.1.tar.bz2"
-LOCATION="$SERVICE_DATASTORE/opt/apps/$APP_NAME"
+monujo:code_init
 
-mkdir -p "$LOCATION"
-if dir_is_empty "$LOCATION"; then
-    cd "$LOCATION"
-    wget -q "$SOURCE_URL" -O file.tar.bz2
-    tar xjf file.tar.bz2
-    rm file.tar.bz2
-    chown root:root "$LOCATION" -R
-fi
+monujo:code_config_base
 
diff --git a/monujo/hooks/pre_deploy b/monujo/hooks/pre_deploy
new file mode 100755
index 0000000..6290966
--- /dev/null
+++ b/monujo/hooks/pre_deploy
@@ -0,0 +1,27 @@
+#!/bin/bash
+## Should be executable N time in a row with same result.
+
+. lib/common
+
+set -e
+
+if ! url=$(relation:get "${SERVICE_NAME}":odoo-server:web-proxy url); then
+    err "Monujo doesn't support odoo-server not having a web-proxy yet."
+    exit 1
+fi
+if ! dbname=$(relation:get "${SERVICE_NAME}":odoo-server:postgres-database dbname); then
+    err "Can't find db name of our odoo-server relation."
+    exit 1
+fi
+
+monujo:config_merge "{
+  \"lokapiHost\": \"$url\",
+  \"lokapiDb\": \"$dbname\"
+}"
+
+
+if map_url=$(relation:get "${SERVICE_NAME}":map-server:publish-dir url); then
+    monujo:config_merge "{
+      \"mapUrl\": \"$map_url\"
+    }"
+fi
diff --git a/monujo/lib/common b/monujo/lib/common
new file mode 100644
index 0000000..e0bd4a6
--- /dev/null
+++ b/monujo/lib/common
@@ -0,0 +1,76 @@
+
+
+APP_NAME=monujo
+VERSION=0.0.2
+SOURCE_URL="https://docker.0k.io/downloads/$APP_NAME-$VERSION.tar.bz2"
+LOCATION="$SERVICE_DATASTORE/opt/apps/$APP_NAME"
+CONFIGFILE="$LOCATION/config.json"
+
+
+monujo:code_init() {
+    mkdir -p "$LOCATION"
+    if dir_is_empty "$LOCATION"; then
+        cd "$LOCATION"
+        wget -q "$SOURCE_URL" -O file.tar.bz2
+        tar xjf file.tar.bz2
+        rm file.tar.bz2
+        chown root:root "$LOCATION" -R
+    fi
+}
+
+
+monujo:code_config_base() {
+
+    MONUJO_OPTIONS=(
+        lokapi-host:string
+        lokapi-db:string
+        map-url:string
+        local-password-retention-time:string
+    )
+
+    MONUJO_OPTIONS_CONCAT=" ${MONUJO_OPTIONS[*]} "
+
+    service_def=$(get_compose_service_def "$SERVICE_NAME") || return 1
+    echo "{}" > "$CONFIGFILE"
+    ## XXXvlab: Should probably offer some lib to do this
+    while read-0 key val; do
+        key_option=${key//-/_}
+        case "$MONUJO_OPTIONS_CONCAT" in
+            *" ${key_option}:bool "*)
+                case "${val,,}" in
+                    true|ok|yes|y)
+                        val=yes
+                        ;;
+                    false|ko|nok|no|n)
+                        val=no
+                        ;;
+                    *)
+                        die "Invalid value for ${WHITE}$key$NORMAL, please use a boolean value."
+                        ;;
+                esac
+                ;;
+            *" ${key_option}:numeric "*)
+                if ! is_int "$val"; then
+                    die "Invalid value for ${WHITE}$key$NORMAL, please use numeric value."
+                fi
+                ;;
+            *" ${key_option}:string "*)
+                :
+                ;;
+            *)
+                key_option=$(echo "$key_option" | sed 's/_\([a-z0-9]\)/\U\1/g')
+                printf "%s %s\0" "$key_option" "$val"
+                ;;
+        esac
+    done < <(printf "%s" "$service_def" | shyaml key-values-0 options) |
+        jq -R 'split("\u0000")  | map(split(" ") | {key: .[0], value: .[1]}) | from_entries' > \
+           "$CONFIGFILE"
+
+}
+
+
+monujo:config_merge() {
+    local old_config new_config="$1"
+    old_config=$(cat "$CONFIGFILE")
+    e "$old_config" "$new_config" | jq -s 'reduce .[] as $x ({}; . * $x)' > "$CONFIGFILE"
+}
\ No newline at end of file
diff --git a/monujo/metadata.yml b/monujo/metadata.yml
index d7b8028..67fcc19 100644
--- a/monujo/metadata.yml
+++ b/monujo/metadata.yml
@@ -15,3 +15,17 @@ uses:
       location: !var-expand "$DATASTORE/$BASE_SERVICE_NAME/opt/apps/monujo"
       # data-dirs: ## write permission for web-app
       #   - .
+  odoo-server:
+    #constraint: required | recommended | optional
+    #auto: pair | summon | none ## default: pair
+    constraint: required
+    auto: pair
+    solves:
+      container: "LCC API provider"
+  map-server:
+    #constraint: required | recommended | optional
+    #auto: pair | summon | none ## default: pair
+    constraint: optional
+    auto: pair
+    solves:
+      container: "Map server"
diff --git a/odoo-tecnativa/metadata.yml b/odoo-tecnativa/metadata.yml
index 9c471d3..ee13bf5 100644
--- a/odoo-tecnativa/metadata.yml
+++ b/odoo-tecnativa/metadata.yml
@@ -28,6 +28,9 @@ default-options:
   #   othersection:
   #     myvalue: yyy
 
+provides:
+  odoo-server:
+
 uses:
   postgres-database:
     #constraint: required | recommended | optional