rustup is a programming language toolchain manager that automates the installation, versioning, and configuration of the Rust compiler and its associated build tools. It serves as a toolchain installer and version manager, enabling the deployment of the language ecosystem across different operating systems.
The system manages multiple compiler versions across stable, beta, and nightly release channels, allowing users to switch between these versions to meet different environment requirements. It also functions as a cross-compilation manager by installing pre-compiled standard libraries to build binaries for various target architectures and operating systems.
The project provides capabilities for toolchain installation, release channel management, and environment maintenance. These workflows ensure that the compiler and its components are kept current through regular updates.
