{

inputs = {

nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";

purescript-overlay.url = "github:thomashoneyman/purescript-overlay";

purescript-overlay.inputs.nixpkgs.follows = "nixpkgs";

};

outputs = { self, nixpkgs, ... }@inputs:

let

supportedSystems = [ "aarch64-linux" "x86_64-linux" "aarch64-darwin" "x86_64-darwin" ];

forAllSystems = nixpkgs.lib.genAttrs supportedSystems;

nixpkgsFor = forAllSystems (system: import nixpkgs {

inherit system;

overlays = builtins.attrValues self.overlays;

});

in

{

overlays = {

purescript = inputs.purescript-overlay.overlays.default;

};

devShells = forAllSystems (system:

let pkgs = nixpkgsFor.${system}; in {

default = pkgs.mkShell {

name = "spago";

buildInputs = with pkgs; [

purs

purs-tidy

purs-backend-es

spago-unstable

purescript-language-server

nodejs

esbuild

];

};

});

};

}