vps requirement

i create hotel management system contains a comprehensive set of features for managing various aspects of hotel operations. It includes room management for tracking and assigning rooms, client management for handling guest information and reservations, and employee management for staff scheduling and records. The system also features a chat function for communication, reporting tools for business insights, and a dashboard for quick overviews. It incorporates task management for coordinating daily operations, inventory management for supplies, sports facility management for recreational areas, cafeteria management for food service areas, and restaurant management for dining facilities. This full-featured system is built using Next.js for the frontend, Node.js for the backend, and PostgreSQL for the database, providing a modern and scalable solution for hotel operations and i want from this system to handdle 100 hotel what is the vps requirement i need