Abstract: Techniques for dynamically determining a configuration file are described. In an example, a system receives, from a device, a request for first content to be presented by the device. The system determines metadata of the first content and a cue point indicating a start of a segment in which second content can be presented by the device. Based on the metadata and subsequent to the request, the system determines a configuration of the segment. The configuration includes: a duration of the segment, a sequence of slots in the segment, and/or a content duration usable in a slot of the segment. The system generates a configuration file that includes the metadata and the configuration, determines the second content based at least in part on the configuration file, and sends data about the first content and the second content to the device.

Abstract: A method, computer system, and computer program product are provided for providing annotations in virtual presentation sessions. Content is presented to a plurality of user devices participating in a communication session. Annotations to the content are received from a plurality of users of the plurality of user devices during the communication session. A subset of one or more users is selected. The annotations associated with the subset of one or more users are provided to the plurality of user devices to cause the plurality of user devices to display the annotations of the subset of one or more users.