diff --git a/README.md b/README.md
index 80fa61b..ac5a7f0 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,17 @@ Testing is run via a Docker container.  To run testing run:
 docker run --privileged --rm $(docker build -q --target test .)
 ```
 
+# Usage
+
+## Environment config
+
+* `NSM_LISTEN_ON`               - url to listen on.
+* `NSM_LOG_LEVEL`               - Log level
+* `NSM_OPEN_TELEMETRY_ENDPOINT` - OpenTelemetry Collector Endpoint
+* `NSM_METRICS_EXPORT_INTERVAL` - interval between mertics exports
+* `NSM_PREFIX`                  - CIDR Prefix to allocate CIDR prefixes for clients
+* `NSM_CLIENT_PREFIX_LEN`       - Default len of clients prefix
+
 # Debugging
 
 ## Debugging the tests
@@ -72,4 +83,4 @@ docker run --privileged -e DLV_LISTEN_FORWARDER=:50000 -p 40000:40000 -p 50000:5
 ```
 
 Please note, the tests **start** the cmd, so until you connect to port 40000 with your debugger and walk the tests
-through to the point of running cmd, you will not be able to attach a debugger on port 50000 to the cmd.
\ No newline at end of file
+through to the point of running cmd, you will not be able to attach a debugger on port 50000 to the cmd.
diff --git a/main.go b/main.go
index e4fd6e1..9afc833 100644
--- a/main.go
+++ b/main.go
@@ -1,5 +1,7 @@
 // Copyright (c) 2022-2023 Cisco and/or its affiliates.
 //
+// Copyright (c) 2024 OpenInfra Foundation Europe. All rights reserved.
+//
 // SPDX-License-Identifier: Apache-2.0
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -45,7 +47,7 @@ import (
 type Config struct {
 	ListenOn              []url.URL     `default:"unix:///listen.on.socket" desc:"url to listen on." split_words:"true"`
 	LogLevel              string        `default:"INFO" desc:"Log level" split_words:"true"`
-	OpenTelemetryEndpoint string        `default:"otel-collector.observability.svc.cluster.local:4317" desc:"OpenTelemetry Collector Endpoint"`
+	OpenTelemetryEndpoint string        `default:"otel-collector.observability.svc.cluster.local:4317" desc:"OpenTelemetry Collector Endpoint" split_words:"true"`
 	MetricsExportInterval time.Duration `default:"10s" desc:"interval between mertics exports" split_words:"true"`
 	Prefix                string        `default:"169.254.0.0/16" desc:"CIDR Prefix to allocate CIDR prefixes for clients" split_words:"true"`
 	ClientPrefixLen       uint8         `default:"24" desc:"Default len of clients prefix" split_words:"true"`