{ description = "compilers and interpreters for jpp"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs"; }; outputs = { nixpkgs, ... }: let systems = [ "x86_64-linux" "aarch64-linux" ]; forEachSystem = nixpkgs.lib.genAttrs systems; pkgsForEach = nixpkgs.legacyPackages; in { devShells = forEachSystem (system: let pkgs = pkgsForEach.${system}; in { default = pkgs.mkShell { name = "jpp"; nativeBuildInputs = with pkgs; [ gcc clang gnat spark2014 alire gprbuild jdk gradle go ghc clisp smlnj swiProlog gnu-smalltalk zip julia_19-bin gforth ]; }; } ); }; }