Yes. It will have a “personal memex” / community knowledge base orientation, so I think ingesting and publishing data will come first. Interop would be an extension of that.
One of my guiding ideas is that different relationships and communities need different things out of their communication/collaboration channels, but that that’s not a reason to have totally different and siloed tools. So even without interop, my app will need to accommodate this kind of variation, without confusing the user.