"#ActivityPods is a combination of two #W3C standards: #ActivityPub, and the #Solid specification. The first standard is for data federation and networks, the second is for data storage and access. The ideals of both projects put together create a compelling vision: data control, across user applications, in service to communication across the web."
https://wedistribute.org/2024/04/activitypods-federated-solid-pods/