diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index c30eba1..72b56a6 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -40,11 +40,11 @@ jobs:
             git reset --hard origin/${{ github.ref_name }}
             git submodule update --init --recursive
             # Clean ALL sibling dirs (including stale self-copies from previous runs)
-            for sibling in blog market cart events; do
+            for sibling in blog market cart events federation; do
               rm -rf \$sibling
             done
             # Copy non-self sibling models for cross-domain imports
-            for sibling in blog market cart events; do
+            for sibling in blog market cart events federation; do
               [ \"\$sibling\" = \"${{ env.IMAGE }}\" ] && continue
               repo=/root/rose-ash/\$sibling
               if [ -d \$repo/.git ]; then
diff --git a/config/app-config.yaml b/config/app-config.yaml
index 227cc2e..278134e 100644
--- a/config/app-config.yaml
+++ b/config/app-config.yaml
@@ -13,6 +13,7 @@ app_urls:
   market: "http://localhost:8001"
   cart: "http://localhost:8002"
   events: "http://localhost:8003"
+  federation: "http://localhost:8004"
 cache:
   fs_root: _snapshot  # <- absolute path to your snapshot dir
 categories:
diff --git a/services/__init__.py b/services/__init__.py
index 94c9535..96afd32 100644
--- a/services/__init__.py
+++ b/services/__init__.py
@@ -23,3 +23,6 @@ def register_domain_services() -> None:
         services.calendar = SqlCalendarService()
     if not services.has("market"):
         services.market = SqlMarketService()
+    if not services.has("federation"):
+        from shared.services.stubs import StubFederationService
+        services.federation = StubFederationService()
diff --git a/shared b/shared
index e83df2f..8850a01 160000
--- a/shared
+++ b/shared
@@ -1 +1 @@
-Subproject commit e83df2f742c8b64e7b4a6bc218fd1bd0a9637d21
+Subproject commit 8850a0106a51acb55d5c7b84dd45b0b012b6333e