To make the highest-resolution Met images available to the world, hosted on IPFS (for storage interoperability and robustness) and marked up with IIIF (for image interoperability and flexibility).
Catalog of high-res PD images over 100Mpx, noting which ones are not currently available online
Post these images to IPFS, pin to a node or two
Set up an IIIF interface to let viewers browse the images.
Post versions of the images to Wikimedia Commons (whole image + tiles)
Integrate w/ Commons development of IIIF browsers.
Met backend efforts: