refactor: added flake parts

flake.nix

@@ -5,6 +5,10 @@
     # base packages
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
+    # flake structure
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    import-tree.url = "github:vic/import-tree";
+
     lix-module = {
       url = "git+https://git.lix.systems/lix-project/nixos-module.git";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -87,95 +91,25 @@
     };
   };
 
-  outputs = {
-    self,
-    nixpkgs,
-    sops-nix,
-    nix-syncthing,
-    home-manager,
-    impermanence,
-    ...
-  } @ inputs: let
-    util = import ./util {inherit inputs;};
-    forEachPkgs = util.forEachPkgs;
-
-    mkNixosSystem = util.mkNixosSystem;
-    mkDarwinSystem = util.mkDarwinSystem;
-    mkHome = util.mkHome;
-
-    nixosSystems = {
-      horizon = mkNixosSystem "horizon";
-      twilight = mkNixosSystem "twilight";
-      defiant = mkNixosSystem "defiant";
-      emergent = mkNixosSystem "emergent";
-    };
-
-    darwinSystems = {
-      hesperium = mkDarwinSystem "hesperium";
-    };
-
-    homeSystems = {
-      # stand alone home manager configurations here:
-      # name = mkHome "name"
-    };
-
-    systemsHomes = nixpkgs.lib.attrsets.mergeAttrsList (
-      nixpkgs.lib.attrsets.mapAttrsToList (hostname: system: (
-        nixpkgs.lib.attrsets.mapAttrs' (user: _: {
-          name = "${user}@${hostname}";
-          value = mkHome {
-            user = user;
-            host = hostname;
-            system = system.pkgs.hostPlatform.system;
-            osConfig = system.config;
+  outputs = inputs:
+    inputs.flake-parts.lib.mkFlake {inherit inputs;} {
+      imports = [
+        inputs.home-manager.flakeModules.home-manager
+        inputs.nix-darwin.flakeModules.default
+        ({lib, ...}: {
+          options.flake.darwinModules = lib.mkOption {
+            type = lib.types.attrsOf lib.types.unspecified;
+            default = {};
           };
         })
-        system.config.home-manager.users
-      ))
-      (nixosSystems // darwinSystems)
-    );
-
-    homeConfigurations =
-      systemsHomes
-      // homeSystems;
-  in {
-    formatter = forEachPkgs (system: pkgs: pkgs.alejandra);
-
-    # templates = import ./templates;
-
-    devShells = forEachPkgs (system: pkgs: {
-      default = pkgs.mkShell {
-        packages = with pkgs; [
-          # for version controlling this repo
-          git
-          # for formatting code in this repo
-          alejandra
-          # for editing secrets in the secrets repo
-          sops
-          # for viewing configuration options defined in this repo
-          nix-inspect
-          # for installing flakes from this repo onto other systems
-          nixos-anywhere
-          # for updating disko configurations
-          disko
-          # for viewing dconf entries
-          dconf-editor
-          # for MCP NixOS server support in development
-          inputs.mcp-nixos.packages.${system}.default
-        ];
-
-        SOPS_AGE_KEY_DIRECTORY = import ./const/sops_age_key_directory.nix;
-
-        shellHook = ''
-          git config core.hooksPath .hooks
-        '';
-      };
-    });
-
-    nixosConfigurations = nixosSystems;
-
-    darwinConfigurations = darwinSystems;
-
-    homeConfigurations = homeConfigurations;
-  };
+        ({...}: {
+          flake.syncthingConfiguration = inputs.nix-syncthing.lib.syncthingConfiguration {
+            modules = [
+              (import ./configurations/syncthing)
+            ];
+          };
+        })
+        (inputs.import-tree ./modules)
+      ];
+    };
 }