> On the fly diffing doesn't work for structured file formats like xlsx, fig, dwg etc. It's too expensive. Both in terms of materializing two files at specific commits, and then diffing these two files.

I don’t think that’s actually true?

How often are binary files being diffed? How long does it take to materialize? How long to run a diff algorithm?

I’ve worked with some tools that can diff images. Works great. Not a problem in need of solving.

In any case I’ll give benefit of the doubt that this project solves some real problem in a useful way. I’m not sure what it is.

My goals in a VCS for binary files seem to be very very very different than yours.