Dynamic integration of customized supplemental media content

A system comprising:

• a memory;
• and
• a set of one or more processing devices coupled to the memory, wherein the set of one or more processing devices is to perform operations comprising:
• receiving a request of a first user for a first media item of a second user, wherein the first media item is associated with a set of rules on how to select one or more additional media items corresponding to the first media item, the set of rules provided by the second user and comprising one or more conditions pertaining to users requesting access to the first media item;
• determining whether one or more conditions defined by the set of rules and pertaining to the first user are satisfied with respect to a second media item of the one or more additional media items;
• and
• responsive to determining that the one or more conditions are satisfied, providing the second media item for presentation via a first user device associated with the first user.

A method comprising:

• transmitting, by a client device associated with a first user of a platform, a request for a first media item of a second user of the platform;
• receiving, by the client device, the first media item and one or more second media items of the second user of the platform, the one or more second media items corresponding to the first media item;
• determining, by the client device and based on a set of rules defined by the second user of the platform, a location of a timeline of the first media item where at least one of the one or more second media items is to be integrated;
• initiating a playback of the first media item via a user interface UI of the client device;
• and
• upon detecting that a time period of the playback of the first media item corresponds to the determined location of the timeline of the first media item, providing the at least one of the one or more second media item for presentation via the UI.