diff --git a/README.adoc b/README.adoc
index 965379c..dffad05 100644
--- a/README.adoc
+++ b/README.adoc
@@ -10,8 +10,27 @@ image:https://github.com/{repository-owner}/{repository-name}/actions/workflows/
 Port of https://bearssl.org[BearSSL] to Arduino.
 
 This library depends on ArduinoECCX08. This dependency could be
-disabled by defining ARDUINO_DISABLE_ECCX08 in ArduinoBearSSLConfig.h
-(see examples).
+disabled by defining ARDUINO_DISABLE_ECCX08 in ArduinoBearSSLConfig.h.
+
+To do this create a configuration library called ArduinoBearSSLConfig with the
+following file structure:
+
+```
+└── ArduinoBearSSLConfig/
+    ├── src/
+    │   └── ArduinoBearSSLConfig.h
+    └── library.properties
+```
+
+ArduinoBearSSLConfig.h
+```
+#pragma once
+#define ARDUINO_DISABLE_ECCX08
+```
+library.properties
+```
+name=ArduinoBearSSLConfig
+```
 
 == License ==
 
diff --git a/examples/AES128/ArduinoBearSSLConfig.h b/examples/AES128/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/AES128/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/DES/ArduinoBearSSLConfig.h b/examples/DES/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/DES/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/MD5/ArduinoBearSSLConfig.h b/examples/MD5/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/MD5/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/MKRGSMSSLClient/ArduinoBearSSLConfig.h b/examples/MKRGSMSSLClient/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/MKRGSMSSLClient/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/SHA1/ArduinoBearSSLConfig.h b/examples/SHA1/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/SHA1/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/SHA256/ArduinoBearSSLConfig.h b/examples/SHA256/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/SHA256/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/WiFiSSLClient/ArduinoBearSSLConfig.h b/examples/WiFiSSLClient/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/WiFiSSLClient/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */
diff --git a/examples/extras/WiFiSSLClientNoSNI/ArduinoBearSSLConfig.h b/examples/extras/WiFiSSLClientNoSNI/ArduinoBearSSLConfig.h
deleted file mode 100644
index 160fc22..0000000
--- a/examples/extras/WiFiSSLClientNoSNI/ArduinoBearSSLConfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ARDUINO_BEARSSL_CONFIG_H_
-#define ARDUINO_BEARSSL_CONFIG_H_
-
-/* Enabling this define allows the usage of ArduinoBearSSL without crypto chip. */
-//#define ARDUINO_DISABLE_ECCX08
-
-#endif /* ARDUINO_BEARSSL_CONFIG_H_ */