Are there private crate indexes for Rust like DevPi for Python?

Are there private crate indexes for Rust like DevPi for Python?
At my company, we have some proprietary Python packages, so we obviously don't want to publish them on PyPi, which is the public Python index. We use something called DevPi
My question is are there similar to that indexes for Rust creates so that a private company that has proprietary code can internally have its own index of crates? (Im new to Rust so please help)

Registries? Registries - The Cargo Book

The protocol cargo uses to find dependencies is well defined (see @sollyucko's link), but it doesn't include any authentication mechanisms which would let you make it truly private (as opposed to just hidden).

There is a pre-RFC in the works, though.

I asked similar questions the other day so the responses in this thread may be useful for you:

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