How Nodo works
Connectors
POS first. Other tools, one at a time in the Orb.
A connector is a tool the Orb can use. The first is the business (POS).
The rule is simple: one active connector. A charge does not mix with another account, and a purchase order does not mix with the menu.
When more exist — mail, calendar, or others — you connect them in settings and pick them the same way. Disconnecting does not delete the business; it only removes that tool from the Orb.
Nodo does not require anything beyond POS to run the floor.