diff --git a/apps/visualizer/.env.example b/apps/visualizer/.env.example
index 9e85877..aae6f87 100644
--- a/apps/visualizer/.env.example
+++ b/apps/visualizer/.env.example
@@ -1,12 +1,15 @@
 # Default: UI reads ticks from the same-origin API proxy at `/api`.
 VITE_API_URL=/api
 
-# Fallback (optional): query Hasura directly (not recommended in browser).
-VITE_HASURA_URL=http://localhost:8080/v1/graphql
-# Optional (only if you intentionally query Hasura directly from the browser):
+# Hasura GraphQL endpoint (supports subscriptions via WS).
+# On VPS, `trade-frontend` proxies Hasura at the same origin under `/graphql`.
+VITE_HASURA_URL=/graphql
+# Optional explicit WS URL; when omitted the app derives it from `VITE_HASURA_URL`.
+# Can be absolute (wss://...) or a same-origin path (e.g. /graphql-ws).
+# VITE_HASURA_WS_URL=/graphql-ws
+# Optional auth (only if Hasura is not configured with `HASURA_GRAPHQL_UNAUTHORIZED_ROLE=public`):
 # VITE_HASURA_AUTH_TOKEN=YOUR_JWT
-# VITE_HASURA_ADMIN_SECRET=devsecret
-VITE_SYMBOL=PUMP-PERP
+VITE_SYMBOL=SOL-PERP
 # Optional: filter by source (leave empty for all)
 # VITE_SOURCE=drift_oracle
 VITE_POLL_MS=1000