diff --git a/docker-compose.yml b/docker-compose.yml
index 3b215f2..388c22f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -78,6 +78,7 @@ services:
       - staging-go
 
 volumes:
+  # Named volumes for Caddy TLS certificates (not user data — managed by Caddy internally)
   caddy-data:
   caddy-data-staging:
   caddy-data-staging-go:
diff --git a/manage.sh b/manage.sh
index e845e12..0be2399 100755
--- a/manage.sh
+++ b/manage.sh
@@ -151,6 +151,13 @@ cmd_setup() {
   fi
 
   log "Docker $(docker --version | grep -oP 'version \K[^ ,]+')"
+  
+  # Check docker compose (separate check since it's a plugin/separate binary)
+  if ! docker compose version &>/dev/null; then
+    err "docker compose is required. Install Docker Desktop or docker-compose-plugin."
+    exit 1
+  fi
+  
   mark_done "docker"
 
   # ── Step 2: Config ──