Technology

Yeah, just get one with reversing valve so you can switch between heating and cooling cycle. Well more like switch around where the heating an cooling cycles happen.

Minisplit doesn't matter since actually almost all of the process happens on the outside unit. What goes inside is the fluid lines(refrigerant feed and return), condensation water line out from the inside and a control data cable from the inside blower unit to the outside operative unit. Outside unit switching around what stage of the fluid cycle gets fed to the inside going line, changes purpose between cooling and heating. Oh yeah and the inside unit also has an electric fan and nozzles to make the airflow happen.

edit: What often mislead is people designating one and other of the coils as evaporator and condenser depending on choosing which mode is "default". Even manufacturers materials. However with 4-way diverting valve unit there is no dedicated evaporator and condenser. There is just two heat exchanger coils. Inside located coil and outside located coil. It is completely upto the valve position and flow diversion, as which is which. Each is always one or the another, but which is which is depending on the valve position. The system is equally as happy air-conditioning the outside or the inside. Thus in match heating the inside or the outside.

Heat pump and AC are the same thing. AC is just specific name for use case of heatpump, where the cold coil (evaporator) is inside and the hot coil (condenser) is outside.