Methods and systems for providing one or more software applications. The methods and systems involve receiving an application request from a user device identifying, at least, a software application to be provided by a host computer server; providing a resource library for the host computer server that defines the resources required for providing each software application; identifying, from the resource library, a set of resources required for providing the requested software application, the set of resources includes at least one resource required for an application operating system to support the requested software application; and providing the requested software application with the set of resources. The application operating system can be different from a host operating system at the host computer server. The set of resources can be launched as a containerized resource instance, which is operationally isolated from other containerized resource instances provided by the host computer server.