1. A computer-implemented method for deploying a data only solution package, the computer-implement method comprising computer implemented operations for: identifying, at a client computer, a dependency to the data only solution package; sending, from the client computer, a request for the data only solution package; receiving, at the client computer, the data only solution package; installing, at the client computer, a data specification through the data only solution package, the data specification including location information specifying a location of an external system storing external data; installing, at the client computer, a data subscription through the data only solution package, the data subscription including queries for retrieving the external data from the external system and frequency information specifying a frequency at which to retrieve the external data; retrieving, at the client computer, the external data from the external system utilizing the location information, the queries, and the frequency information; and populating, at the client computer, a data cache with the external data.