1. A non-transitory computer-readable medium embodying a program executable in at least one computing device, comprising: a packaged executable application comprising: an original static content; code that copies the original static content from the packaged executable application to storage implemented in the at least one computing device; code that renders a user interface as a function of an original static content; code that obtains, from a content distribution service, a manifest comprising a first signature and a plurality of first hash codes, each of the first hash codes corresponding to one of a plurality of interface elements; code that obtains, from the content distribution service, an updated static content comprising the interface elements; code that generates a second signature as a function of a public key and the manifest; code that validates the manifest responsive to the first signature matching the second signature; code that generates a plurality of second hash codes as a function of the interface elements, each of the second hash codes corresponding to one of the interface elements; code that validates responsive to each of the first hash codes matching a corresponding one of the second hash codes; and code that, responsive to a validation of the updated static content and the manifest, performs a reconfiguration such that the user interface is rendered as a function of the updated static content.