Technologies are described herein for deploying a data only solution package separate from custom code. In this way, lifecycles of the data only solution package and the custom code can be separately controlled. In an illustrative implementation, the data only solution package is received at a computer. A data specification is installed at the computer through the data only solution package. The data specification may specify a location of an external system storing external data. A data subscription may also be installed at the computer through the data only solution package. The data subscription may include queries for retrieving the external data from the external system and frequency information specifying a frequency at which to retrieve the external data. The external data is retrieved from the external system utilizing the location information, the queries, and the frequency information. A data cache at the computer is populated with the external data.