diff --git a/.drone.yml b/.drone.yml
index b62ce90..c5871a1 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -15,6 +15,9 @@ steps:
   - name: build
     image: oven/bun:1-alpine
     environment:
+      # Serialise Angular workers — lower peak RAM, longer build (Pi-friendly)
+      NG_BUILD_MAX_WORKERS: "1"
+      NODE_OPTIONS: "--max-old-space-size=1536"
       STRAVA_CLIENT_ID:
         from_secret: strava_client_id
       STRAVA_REDIRECT_URI: