diff --git a/docker-compose.yml b/docker-compose.yml
index 799cdfb8f..770b243a0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,7 +5,7 @@ services:
       context: .
       dockerfile: ./utilities/testrunners/php72/Dockerfile
     volumes:
-      - .:/app
+      - smarty-code:/app
     working_dir: /app
   php72:
     extends:
@@ -37,3 +37,35 @@ services:
       service: base
     build:
       dockerfile: ./utilities/testrunners/php82/Dockerfile
+
+volumes:
+  smarty-code:
+
+x-mutagen:
+  sync:
+    defaults:
+      symlink:
+        mode: "posix-raw"
+      ignore:
+        vcs: true
+        paths:
+          - ".docker"
+          - ".env.docker"
+          - ".bundles"
+          - "docker-compose.yml"
+          - ".idea"
+          - ".DS_Store"
+      mode: "two-way-resolved"
+      configurationBeta:
+        permissions:
+          defaultOwner: "id:${APP_USER_ID}"
+          defaultGroup: "id:${APP_GROUP_ID}"
+          defaultFileMode: 0666
+          defaultDirectoryMode: 0755
+      permissions:
+        defaultOwner: "id:${APP_USER_ID}"
+        defaultGroup: "id:${APP_GROUP_ID}"
+    smarty-code:
+      alpha: "."
+      beta: "volume://smarty-code"
+
diff --git a/run-tests-for-all-php-versions.sh b/run-tests-for-all-php-versions.sh
index 1f1b94c28..b2a4133a0 100755
--- a/run-tests-for-all-php-versions.sh
+++ b/run-tests-for-all-php-versions.sh
@@ -5,9 +5,11 @@
 # - ./run-tests-for-all-php-versions.sh --group 20221124
 # - ./run-tests-for-all-php-versions.sh --exclude-group slow
 
-docker-compose run php72 ./run-tests.sh $@ && \
-docker-compose run php73 ./run-tests.sh $@ && \
-docker-compose run php74 ./run-tests.sh $@ && \
-docker-compose run php80 ./run-tests.sh $@ && \
-docker-compose run php81 ./run-tests.sh $@ && \
-docker-compose run php82 ./run-tests.sh $@
+COMPOSE_CMD="mutagen-compose"
+
+$COMPOSE_CMD run --rm php72 ./run-tests.sh $@ && \
+$COMPOSE_CMD run --rm php74 ./run-tests.sh $@ && \
+$COMPOSE_CMD run --rm php74 ./run-tests.sh $@ && \
+$COMPOSE_CMD run --rm php80 ./run-tests.sh $@ && \
+$COMPOSE_CMD run --rm php81 ./run-tests.sh $@ && \
+$COMPOSE_CMD run --rm php82 ./run-tests.sh $@