i can be wrong, I usually am and so I would like to know more but my rationale behind 9fs being better than NFS was that 9fs is a much simpler protocol in general and its philosophy also maps very neatly to what you are trying to achieve. The simplicity and overlapping ideas felt to me as something which could create an prototype much easier than on NFS which has its complexity issues.

> NFS is really a great protocol with a lot of tricks to reduce round trips

Oh, I didn't know that actually but makes sense given how NFS is used but are there any issues/limitations that you face when building things on top of NFS. I would love to know more :-D