diff --git a/.dockerignore b/.dockerignore
index f204349160..9dc22b6ca7 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,8 +1,10 @@
 .autogen
 .github
+.forgejo
 .travis
 .vscode
 .config
+
 Dockerfile
 build/
 built/
@@ -28,3 +30,5 @@ fluent-emojis/
 .idea/
 packages/*/.vscode/
 packages/backend/test/compose.yml
+
+/yume-mods
diff --git a/compose_example.yml b/compose_example.yml
index 07e273762c..16347d3785 100644
--- a/compose_example.yml
+++ b/compose_example.yml
@@ -64,6 +64,7 @@ services:
     restart: always
     image: l1drm/postgres-pgroonga:alpine-15-znver4
     user: "${MISSKEY_UID}:${MISSKEY_GID}"
+    shm_size: 2gb
     networks:
       - internal_network
     env_file: