The container actually is based on rust:latest which itself is based on Debian (Bookworm). Maybe I will switch to the Debian image, or better switch to an Alpine based image in the future. Actually I prefer the Debian image because it makes it more flexible to me because sometimes I need the GNU libc to compile programs.
Why the name "rusty"? Because it is based on some earlier Docker stuff I made for compiling Rust code... And rusty just sounds cool.
My plan is to switch from Docker to native Linux Containers at some time but I am faster in building the prototype using Docker... ;)