diff --git a/dokku-setup.sh.sample b/dokku-setup.sh.sample
index 87d85b8..13019eb 100644
--- a/dokku-setup.sh.sample
+++ b/dokku-setup.sh.sample
@@ -11,6 +11,7 @@
 set -e
 
 APP="firehose"        # <-- change to your desired Dokku app name / hostname
+DB_NAME="firehose_db" # <-- valid chars: [A-Za-z0-9_] only
 PHX_HOST="$APP"       # <-- change to your full domain, e.g., firehose.example.com
 
 # Auto-generate secrets
@@ -20,8 +21,8 @@ echo "==> Creating Dokku app: $APP"
 dokku apps:create "$APP" || echo "App may already exist"
 
 echo "==> Creating PostgreSQL database"
-dokku postgres:create "${APP}-db" || echo "Database may already exist"
-dokku postgres:link "${APP}-db" "$APP" || echo "Database may already be linked"
+dokku postgres:create "${DB_NAME}" || echo "Database may already exist"
+dokku postgres:link "${DB_NAME}" "$APP" || echo "Database may already be linked"
 
 echo "==> Setting environment variables"
 dokku config:set --no-restart "$APP" \
@@ -29,21 +30,18 @@ dokku config:set --no-restart "$APP" \
   PHX_HOST="$PHX_HOST" \
   PORT="4000"
 
-# Optional: set custom domain (uncomment and edit)
-# dokku domains:set "$APP" "$PHX_HOST"
-
-# Optional: set up SSL with Let's Encrypt (uncomment)
-# dokku letsencrypt:enable "$APP"
-
 echo ""
 echo "==> Setup complete!"
 echo ""
+echo "DATABASE_URL was set automatically by postgres:link."
+echo ""
 echo "Next steps:"
 echo "  1. From your local machine, add the git remote:"
 echo "     git remote add dokku dokku@YOUR_SERVER:$APP"
 echo ""
 echo "  2. Push to deploy:"
 echo "     git push dokku main"
+echo "     (migrations run automatically via app.json postdeploy)"
 echo ""
-echo "  3. Run migrations (first deploy):"
-echo "     dokku run $APP /app/bin/migrate"
+echo "  3. Set up SSL (after first deploy):"
+echo "     dokku letsencrypt:enable $APP"