Copy config from prod branch to main

.env.example

@@ -89,3 +89,19 @@ PREVIEW_TEXT_COLOR=#363636
 PREVIEW_IMG_WIDTH=1200
 PREVIEW_IMG_HEIGHT=630
 PREVIEW_DEFAULT_COVER_COLOR=#002549
+
+# Below are example keys if you want to enable automatically
+# sending telemetry to an OTLP-compatible service. Many of
+# the main monitoring apps have OLTP collectors, including
+# NewRelic, DataDog, and Honeycomb.io - consult their
+# documentation for setup instructions, and what exactly to
+# put below!
+#
+# Service name is an arbitrary tag that is attached to any
+# data sent, used to distinguish different sources. Useful
+# for sending prod and dev metrics to the same place and
+# keeping them separate, for instance!
+
+OTEL_EXPORTER_OTLP_ENDPOINT=    # API endpoint for your provider
+OTEL_EXPORTER_OTLP_HEADERS=     # Any headers required, usually authentication info
+OTEL_SERVICE_NAME=              # Service name to identify your app