[ikawe]

It’d be nice if they at least mentioned the existing pure rust implementation.

https://github.com/KillingSpark/zstd-rs

And better yet if they compared it explicitly in their “why” section. As it is, I’m left guessing.

[merlincorey]

The "Why" section exclusively opens with a reference to zstd-rs:

> Why though?

> Using zstd in Rust is already supported via the zstd crate, so why bother with a whole new implementation?

Separately, I'd say their end goal seems to be replacing the C library dependency in Rust's zstd-rs:

> We have our own fork of the zstd that uses libzstd-rs-sys instead of the C library. We'd like to upstream this at some point.

[soulbadguy]

They seems to be referering to https://github.com/gyscos/zstd-rs which looks like a wrapper around the C library. https://github.com/KillingSpark/zstd-rs. is a pure rust implementation