A list of the 6 libraries in the architecture mbed_opta.

ArduinoIoTCloud This library allows connecting to the Arduino IoT Cloud service.
ArduinoModbus Use Modbus equipment with your Arduino.
ArduinoRS485 Enables sending and receiving data using the RS-485 standard with RS-485 shields, like the MKR 485 Shield.
Arduino_ConnectionHandler Arduino Library for network connection management (WiFi, GSM, NB, [Ethernet])
Arduino_Portenta_OTA Firmware update for the Portenta H7.
OneWireNg Arduino 1-wire service library. OneWire alternative.