{
inputs.nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
outputs = inputs: let
inherit (inputs.nixpkgs) lib;
systems = lib.systems.flakeExposed;
eachSystem = lib.genAttrs systems;
pkgsFor = system:
import inputs.nixpkgs {
inherit system;
};
in {
devShells = eachSystem (
system: let
pkgs = pkgsFor system;
in {
default = pkgs.mkShell {packages = with pkgs; [mdbook tree-sitter];};
}
);
formatter = eachSystem (system: (pkgsFor system).nixfmt);
};
}