diff --git a/docker-compose.yml b/docker-compose.yml
index 77e184c2c..c8eb9458f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -74,6 +74,8 @@ services:
       - ${DOCKER_WEB_PROFILE:-}
     build:
       target: ${DOCKER_APP_RUNTIME}-runtime
+      cache_from:
+        - "type=registry,ref=${DOCKER_APP_IMAGE}-cache:${DOCKER_APP_TAG}"
       args:
         APT_PACKAGES_EXTRA: "${DOCKER_APP_APT_PACKAGES_EXTRA:-}"
         PHP_BASE_TYPE: "${DOCKER_APP_BASE_TYPE}"
@@ -117,6 +119,8 @@ services:
     stop_signal: SIGTERM
     build:
       target: ${DOCKER_APP_RUNTIME}-runtime
+      cache_from:
+        - "type=registry,ref=${DOCKER_APP_IMAGE}-cache:${DOCKER_APP_TAG}"
       args:
         APT_PACKAGES_EXTRA: "${DOCKER_APP_APT_PACKAGES_EXTRA:-}"
         PHP_BASE_TYPE: "${DOCKER_APP_BASE_TYPE}"
diff --git a/docker/shared/root/docker/templates/docker/shared/proxy/conf.d/docker-pixelfed.conf b/docker/shared/root/docker/templates/docker/shared/proxy/conf.d/docker-pixelfed.conf
new file mode 100644
index 000000000..1b5a9a80f
--- /dev/null
+++ b/docker/shared/root/docker/templates/docker/shared/proxy/conf.d/docker-pixelfed.conf
@@ -0,0 +1,7 @@
+###########################################################
+# DO NOT CHANGE
+###########################################################
+# This file is generated by the Pixelfed Docker setup, and
+# will be rewritten on every container start
+
+client_max_body_size {{ getenv "POST_MAX_SIZE" "61M" }};