Use BLE with Seeeduino XIAO nRF52840 Sense (NOT mbed)

Hi everyone, someone of you has an CLEAR example on how to use BLE with XIAO nRF52840 Sense (NOT the Mbed enabled version, but the nRF52 one).

I know that in the documentation there is explained to use the Bluefruit library, but I could not find a decent example and DOCUMENTATION…

I want simply scan devices by name, connect to them and read/write values from their characteristic…