That would be great! We anyway want to federate link preview metadata (I see there's https://helge.codeberg.page/fep/fep/8967/ though nobody seems to have implemented it yet) so it'd be great if it was done as an extension of that, so that non-scientific platforms can still show a subset of the preview information at least? And yeah looking at existing schemas to reuse sounds great, maybe we can collaborate on a FEP draft that just points to those and shows some examples?