diff --git a/docker-compose.yml b/docker-compose.yml
index 0249e81..5a51e1c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -34,9 +34,10 @@ services:
       DATABASE_PATH: /app/data/database.sqlite
       FARMACIAS_WEBHOOK_URL: ${FARMACIAS_WEBHOOK_URL:-}
       PG_URL: postgresql://farmafinder:${PG_PASSWORD:-change-me-in-production}@postgres:5432/farmafinder
-      # OpenTelemetry — exported via OTLP gRPC to the shared Alloy collector
+      # OpenTelemetry — exported via OTLP gRPC to the shared Alloy collector.
+      # When the stack runs on 192.168.1.84, send traces to that host.
       OTEL_SERVICE_NAME: farmafinder-backend
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://host.docker.internal:4317
+      OTEL_EXPORTER_OTLP_ENDPOINT: ${OTEL_EXPORTER_OTLP_ENDPOINT:-http://192.168.1.84:4317}
       OTEL_TRACES_EXPORTER: otlp
       OTEL_LOGS_EXPORTER: otlp
       OTEL_RESOURCE_ATTRIBUTES: service.namespace=farmafinder
@@ -51,7 +52,7 @@ services:
     build:
       context: ./frontend
       args:
-        VITE_FARO_ENDPOINT: ${VITE_FARO_ENDPOINT:-http://localhost:4318}
+        VITE_FARO_ENDPOINT: ${VITE_FARO_ENDPOINT:-http://192.168.1.84:4318}
         VITE_FARO_APP_NAME: ${VITE_FARO_APP_NAME:-farmafinder-frontend}
         VITE_FARO_ENV: ${VITE_FARO_ENV:-production}
         VITE_FARO_APP_VERSION: ${VITE_FARO_APP_VERSION:-1.0.0}
diff --git a/frontend/.env.example b/frontend/.env.example
index d6309f0..2b18959 100644
--- a/frontend/.env.example
+++ b/frontend/.env.example
@@ -3,10 +3,10 @@
 # Copy to .env and adjust as needed for local dev.
 
 # OTLP HTTP endpoint of the Grafana Alloy collector.
-# In Docker on the same host as Alloy, use http://localhost:4318 (the
-# container's perspective of the host). For external deploys, use the
-# Alloy's public URL, e.g. https://alloy.example.com.
-VITE_FARO_ENDPOINT=http://localhost:4318
+# In Docker on the same host as Alloy, use the collector hostname or IP,
+# for example http://192.168.1.84:4318.
+# For external deploys, use the Alloy's public URL, e.g. https://alloy.example.com.
+VITE_FARO_ENDPOINT=http://192.168.1.84:4318
 
 # App name shown in Grafana Explore / Faro data source.
 VITE_FARO_APP_NAME=farmaclic-frontend