Early morning travel from Positano to Naples

I will be staying in Positano for a friends wedding in early June this year.

I have seen much advice on how to get from Naples to Positano but little about the return trip.

I need to be at Naples airport at around 10am on a Thursday morning.

Is this possible via public transport or am I going to need to get a taxi or hire a car instead?

Any advice would be most welcome

Thanks