The tl;dr is that "xet" is like GitLFS (it stores pointers in Git, with the data in a remote server and uses smudge filters to make this transparent) with some additional features:

- Automatically includes all files >256KB in size

- By default data is de-duplicated 16KB chunks instead of whole files (with the ability to customize this per file type).

- Has a "mount" command to allow read-only browse without downloading

When launching on HN it would be better if the team was a bit more transparent with the internals. I get that "we made a better GitLFS" doesn't market as well. But you can couple that with a credible vision and story about how you are a better and where you are headed next. Instead this is mostly closer to market speak of "trust our magic solution to solve your problem".