How Solid and ActivityPub complement each other best

An exciting new piece of this stack have recently emerged, namely Rauthy, a self-hostable OIDC provider. In the last day it added support for DPoP:

This in turn paves the way for Solid-OIDC, which I think is how we finally bridge the gap between Solid and ActivityPub.

The opening post of this topic already calls out identity as a key commonality. The same point has been made by former Solid developers:

…and these ideas have been swirling around in this community for a long time.

Quite recently @djsf has been exploring a Solid and Mastodon integration, eventually arriving at the need to properly grok OIDC in order to progress further.

I’m also excited about the existence of ActivityPods, but I’ve yet to understand how it works with identity. The extent to which it wants to interoperate with OIDC is an open question.

In summary:

  • I want my root digital identity stored in a Solid pod.
  • I wanna log into all fediverse platforms via my Solid OAuth login.
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