The core activity of POS Expert is to provide services related to the implementation, configuration, and optimization of Lightspeed point-of-sale (POS) systems for businesses, particularly in the hospitality and retail sectors. The specific activities include: installation and configuration of Lightspeed POS systems, training and support for employees in using the system, project assignments and analysis for system optimization, troubleshooting and technical support for system issues, and ongoing customer care and support in using the system.