> Practically speaking, we don’t expect the gatekeepers to ... implement multihead messengers that also speak open protocols<p>But isn't it reasonable to demand that gatekeepers' messengers support a local plugin API which lets people add support for other protocols?<p>I guess that's what the question "Can you run E2EE bridges clientside to make them safer?" is asking, and I hope that this becomes the "industry standard" approach that gatekeepers end up being legally and socially compelled to implement.