flake.nix

{
  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs =
    inputs@{ flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      systems = [
        "x86_64-linux"
        "aarch64-linux"
        "aarch64-darwin"
        "x86_64-darwin"
      ];
      perSystem =
        { pkgs, system, ... }:
        {
          _module.args.pkgs = import inputs.nixpkgs {
            inherit system;
            overlays = [ inputs.rust-overlay.overlays.default ];
          };
          devShells.default = pkgs.mkShell {
            packages = [
              (pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml)
            ];
          };
          formatter = pkgs.nixfmt-rfc-style;
        };
    };
}