Arduino Nicla Sense ME - SPI Slave support

Any plan of adding SPI slave functionality to nrf52 boards, specifically Arduino Nicla Sense ME? I know the SPI Slave library from Mbed, but it seems the SPI slave driver is not there or configured from the base nrf52 SDK in the Arduino Mbed framework.
Thank you.

Start by examining the Arduino Mbed framework's nrf52 SPI configuration and the Mbed SPI Slave library, then verify whether the base nrf52 SDK provides or enables the required slave driver. Done means SPI slave functionality works on the Arduino Nicla Sense ME and is covered by the framework's supported-board behavior.

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