{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

  inputs.pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
  inputs.pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";

  outputs = {
    self,
    pre-commit-hooks,
    nixpkgs,
  }: let
    inherit (self) outputs;
    supportedSystems = ["x86_64-linux" "aarch64-darwin"];
    forEachSupportedSystem = nixpkgs.lib.genAttrs supportedSystems;
  in {
    formatter = forEachSupportedSystem (system: nixpkgs.legacyPackages.${system}.alejandra);

    checks = forEachSupportedSystem (system: {
      pre-commit-check = pre-commit-hooks.lib.${system}.run {
        src = ./.;
        hooks = {
          alejandra.enable = true;
        };
      };
    });

    devShells = forEachSupportedSystem (system: let
      pkgs = import nixpkgs {inherit system;};
    in {
      rust-dev = pkgs.mkShell {
        inherit (outputs.checks.${system}.pre-commit-check) shellHook;
        buildInputs = with pkgs; [
          # nix tools
          nil
          alejandra

          # rust tools
          cargo
          rustc
          rustfmt
          rustPackages.clippy
          rust-analyzer

          # linker
          clang
          mold

          # debugger
          lldb

          # libs
          openssl
          pkg-config
        ];
      };

      default = outputs.devShells.${system}.rust-dev;
    });
  };
}