Utilizing UARTA as a serial port

Board: le Potato
OS: Rasbian headerless
I wish to use the 40 pin header Pin 8 (UART_A_TX) and 10 (UART_A_RX) for uart to uart coms with an ESP32 microcontroller board.
I have used lc_overlay to activate overlay uarta.
I had an expectation, that either one of the serial ports ttyS[0,1,2,3] would now be usable as a serialport, OR
that a serialport would appear in /dev similar to ttyAML0 but maybe ttyAML1.
Any advice on the proper approach to enabling a serial port over UART A would be appreciated.

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