I'm just curious since Rust has some level of interoperability with C++ and I kinda like Rust's syntax and how memory works. i don't know... I was just exploring Rust, over the weekend, for my personal project and thought it would be interesting if Archicad could use it. Besides linux is slowly converting it's old code to Rust.
performance wise... I'm not sure if there will be any speed gain but Rust does have a large community of devs though.
