Embodiments of the present invention address deficiencies of the art in respect to software installation and provide a method, system and computer program product for merger driven software installation. In one embodiment of the invention, an application installation method can be provided. The method can include specifying an installation package for a software product as a source repository and specifying a target repository in a target platform hosted by at least one computing system. Thereafter, a merge operation can be executed with each of the source repository and the target repository so that the target repository is updated according to the source repository.