{ description = "Programming language written in TypeScript compiling to Wasm"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs"; }; outputs = { self, nixpkgs }: let allSystems = [ "x86_64-linux" # 64-bit Intel/AMD Linux "aarch64-linux" # 64-bit ARM Linux "x86_64-darwin" # 64-bit Intel macOS "aarch64-darwin" # 64-bit ARM macOS ]; # Helper to provide system-specific attributes forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f { pkgs = import nixpkgs { inherit system; }; }); in { devShells = forAllSystems ({ pkgs }: { default = pkgs.mkShell { packages = with pkgs; [ nodejs-18_x # Node.js 18, plus npm, npx, and corepack wasmtime wasm-tools binaryen ]; }; }); }; }