diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 36c5c73..ee8b1a7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -202,6 +202,19 @@ shields:
     changes:
       - shields/*
 
+synapse:
+  stage: build
+  tags:
+   - docker
+  script:
+    - cd synapse
+    - make push
+  only:
+    variables:
+      - $CI_COMMIT_REF_PROTECTED == "true"
+    changes:
+      - synapse/*
+
 .docker_init: &docker_init |
   if ! docker info &>/dev/null; then
     if [ -z "${DOCKER_HOST}" -a "${KUBERNETES_PORT}" ]; then
diff --git a/synapse/Makefile b/synapse/Makefile
new file mode 100644
index 0000000..31d0148
--- /dev/null
+++ b/synapse/Makefile
@@ -0,0 +1,18 @@
+NAMESPACE=alemairebe
+VERSION=v1.32.2
+
+IMAGE=synapse
+
+push: get decompress build
+
+get:
+	wget https://github.com/matrix-org/synapse/archive/refs/tags/$(VERSION).zip
+
+decompress:
+    unzip $(VERSION).zip
+
+build:
+	docker buildx build --platform linux/amd64,linux/arm64,linux/arm --push \
+    	  --cache-from=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
+	  --cache-to=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
+	  --tag ${CI_REGISTRY_IMAGE}/${IMAGE}:$(VERSION) ${IMAGE}-$(VERSION)