selene is written in Rust, and the recommended installation method is through the Cargo package manager.
To use Cargo, you must first install Rust. rustup.rs is a tool that makes this very easy.
Once you have Rust installed, use either command:
If you want the most stable version of selene
cargo install selene
If you want the most up to date version of selene
cargo install --branch main --git https://github.com/Kampfkarren/selene selene
selene is built with Roblox specific lints by default. If you don't want these, type
--no-default-features after whichever command you choose.