nix_for_rustaceans/flake.nix

{
  description = "Description for the project";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-parts.url = "github:hercules-ci/flake-parts";
    devshell.url = "github:numtide/devshell";
    treefmt-nix.url = "github:numtide/treefmt-nix";
  };

  outputs =
    inputs@{ flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [
        inputs.devshell.flakeModule
        inputs.treefmt-nix.flakeModule
      ];
      systems = [
        "x86_64-linux"
        "aarch64-linux"
        "aarch64-darwin"
        "x86_64-darwin"
      ];
      perSystem =
        {
          config,
          self',
          inputs',
          pkgs,
          system,
          ...
        }:
        {
          treefmt = {
            programs.nixfmt.enable = true;
            programs.prettier.enable = true;
            projectRootFile = "flake.nix";
          };
          devshells.default = {
            serviceGroups.marp.services.marp.command = "marp --watch";
            commands = [
              {
                help = "Build presentation and present";
                name = "present";
                command = "marp && xdg-open ./present/slides.html";
              }
            ];
            packages = [
              pkgs.marp-cli
              config.treefmt.build.wrapper
            ];
          };
        };
    };
}