{ description = "A Nix-flake-based Dhall development environment"; inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz"; outputs = { self, nixpkgs }: let supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ]; forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f { pkgs = import nixpkgs { inherit system; }; }); in { devShells = forEachSupportedSystem ({ pkgs }: { default = let # Helper function for building dhall-* tools mkDhallTools = ls: builtins.map (tool: pkgs.haskellPackages."dhall-${tool}") ls; dhallTools = mkDhallTools [ "bash" "docs" "json" "lsp-server" "nix" "nixpkgs" "openapi" "toml" "yaml" ]; in pkgs.mkShell { packages = (with pkgs; [ dhall ]) ++ dhallTools; }; }); }; }