[repiret]

It looks like they did, but having an implementation in a memory-safe language was one of their requirements. Learning that was for me the most fascinating part of the article.

[telendram]

A pure-rust implementation of zstd decoder already exists in production : https://github.com/KillingSpark/zstd-rs

[JosephRedfern]

Surely Dropbox would have the engineering power to re-implement zstd in a memory safe language if it was sufficiently beneficial.

[nawgz]

I'm sure they could implement it technically speaking, but if a compression protocol is not widespread enough to have others doing such a thing, they can probably consider that a sign of how supported it is.