dotfiles/flake.nix at main · suddenlyGiovanni/dotfiles · GitHub

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{
  description = "suddenlyGiovanni's dotfiles - nix-darwin system configuration and development environment";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    nix-darwin.url = "github:LnL7/nix-darwin";
    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    nix-homebrew.url = "github:zhaofengli/nix-homebrew";
    mac-app-util.url = "github:hraban/mac-app-util";
    onepassword-shell-plugins.url = "github:1Password/shell-plugins";

    # Dendritic infrastructure (ADR-007)
    flake-parts.url = "github:hercules-ci/flake-parts";
    flake-parts.inputs.nixpkgs-lib.follows = "nixpkgs";
    import-tree.url = "github:vic/import-tree";
  };

  outputs = inputs:
    inputs.flake-parts.lib.mkFlake {inherit inputs;} {
      systems = ["aarch64-darwin"];

      imports =
        [
          inputs.flake-parts.flakeModules.modules
          ./modules/options.nix
          ./modules/hosts.nix
          ./modules/host-assembly.nix
        ]
        ++ (inputs.import-tree ./modules/features).imports;

      # Per-system outputs (formatter, devShells, checks)
      perSystem = {pkgs, ...}: {
        # Formatter for `nix fmt`
        formatter = pkgs.alejandra;

        # CI-ready checks — `nix flake check` runs all of these
        checks = {
          formatting = pkgs.runCommand "check-formatting" {} ''
            cd ${./.}
            ${pkgs.alejandra}/bin/alejandra --check . 2>&1
            touch $out
          '';
          lint = pkgs.runCommand "check-lint" {} ''
            cd ${./.}
            ${pkgs.statix}/bin/statix check .
            touch $out
          '';
          deadcode = pkgs.runCommand "check-deadcode" {} ''
            cd ${./.}
            ${pkgs.deadnix}/bin/deadnix --fail .
            touch $out
          '';
        };

        # Development shell for working on these dotfiles
        # Activated automatically via direnv (use flake)
        devShells.default = pkgs.mkShell {
          name = "dotfiles-dev";
          packages = with pkgs; [
            # Nix tools
            nixd # Nix language server
            nil # Alternative Nix LSP
            alejandra # Nix formatter
            statix # Nix linter
            deadnix # Find dead code in Nix

            # Utilities
            just # Task runner
            nvd # Nix package version diff tool
          ];

          shellHook = ''
            echo "dotfiles development shell"
            echo ""
            just --list
          '';
        };
      };
    };
}