diff --git a/docker-compose.yml b/docker-compose.yml
index 40f8d86..25326a3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,6 +2,9 @@ services:
     web:
         restart: unless-stopped
         container_name: ${CONTAINER_WEB}
+        networks:
+            - default
+            - shared
         build:
             context: ./
             dockerfile: aether_nginx.Dockerfile
@@ -48,6 +51,9 @@ services:
         restart: always
         container_name: ${CONTAINER_REDIS}
         image: redis
+        networks:
+            - default
+            - shared
         command: redis-server --save "" --loglevel warning
         logging:
             driver: "json-file"
@@ -60,6 +66,8 @@ services:
         image: mariadb:10.11
         container_name: ae_mariadb_dev
         profiles: ["database"]
+        networks:
+            - shared
         command: [
             "mysqld",
             "--max-connections=${MARIADB_MAX_CONNECTIONS}",
@@ -90,6 +98,8 @@ services:
         image: phpmyadmin/phpmyadmin
         container_name: ae_pma_dev
         profiles: ["database"]
+        networks:
+            - shared
         environment:
             PMA_HOST: mariadb
             UPLOAD_LIMIT: 64M
@@ -109,6 +119,9 @@ services:
             context: ${AE_API_SRC}
             dockerfile: Dockerfile
         scale: ${AE_API_REPLICAS}
+        networks:
+            - default
+            - shared
         env_file:
             - ./.env
         extra_hosts:
@@ -144,6 +157,9 @@ services:
             args:
                 BUILD_MODE: ${AE_APP_BUILD_MODE:-staging}
         scale: ${AE_APP_REPLICAS:-1}
+        networks:
+            - default
+            - shared
         env_file:
             - ./.env
         # No host ports — ae_web_dev proxies to ae_app:3000 via Docker DNS,
@@ -228,6 +244,8 @@ services:
         image: alpine:latest
         restart: always
         profiles: ["database"]
+        networks:
+            - shared
         env_file:
             - ./.env
         volumes:
@@ -248,3 +266,6 @@ services:
 networks:
   default:
     name: ${AE_NETWORK_NAME:-ae_dev_net}
+  shared:
+    name: aether_shared_net
+    external: true