Ktra is a implementation of the Alternate Registry that is introduced for non-public crates in Rust/Cargo 1.34.
In other words,
Ktra is an all-in-one package for the private cargo registry.
If you write a Rust crate in your job, your codes might be proprietary and/or closed-source.
crates.io cannot host closed-source crates so you have to construct a private registry by yourself.
Ktra could help to reduce that annoying operations.
Ktra is named after shortened name of Kei truck which is a japanese style mini pickup truck.
You can pronounce
Ktra as you like.
For your information, most native japanese speaker do it KEI-TORA or KE-TORA.