So what about the IPFS CAR format? https://car.ipfs.io/, it would fulfill a lot of what I expect from NAR too. NAR or CAR, I don't care, I believe the content is what matters, not the container format.

If I have a box with an apple in it, I don't care about the box, I care about the apple inside. If it's not an apple, I don't want to eat it.