{ description = "Advent Of Code 2024"; inputs = { nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; }; outputs = { self, nixpkgs }: let supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-linux" "aarch64-darwin" ]; forAllSystems = nixpkgs.lib.genAttrs supportedSystems; in { devShells = forAllSystems (system: let pkgs = nixpkgs.legacyPackages.${system}; in { default = pkgs.mkShell { packages = with pkgs; [ ghc cabal-install haskellPackages.haskell-language-server ]; }; }); }; }