What is a feasibility to implement IPFS for lemmys image hosting?

We have a bunch of instances hosting basically the same images multiple times. Using IPFS we could increase the availability of images for users with almost no cost to instances. I have heard rumors that pict-rs can't be easily scaled up due file system based storage and would need a rewrite.

I think Fediverse is major thing where using IPFS on the decentralized network makes sense.