flake.nix

{
    description               = "programming-challenges";
    inputs.nixpkgs.url        = "github:NixOS/nixpkgs/nixos-unstable";

    outputs = { nixpkgs, ... }:
    let 
        supportedSystems = 
        [ 
            "x86_64-darwin" 
            "aarch64-darwin"
            "x86_64-linux" 
        ];
        forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
    in
    {
        devShells = forAllSystems
        (system:
        let
            pkgs = nixpkgs.legacyPackages.${system};
        in
        {
            default = pkgs.mkShell 
            {
                buildInputs = with pkgs; 
                [
                    rustc
                    cargo
                    clippy
                ];
            };
        });
    };
}