templates: allow specifying from flake-parts module

flake.nix

@@ -43,10 +43,6 @@
           meta.name = "clan-core";
         };
 
-        flake = {
-          clan.templates = import ./templates { };
-        };
-
         systems = import systems;
         imports =
           # only importing existing paths allows to minimize the flake for test

flakeModules/clan.nix

@@ -27,9 +27,13 @@ in
   };
 
   options.flake = flake-parts-lib.mkSubmoduleOptions {
+    clan = lib.mkOption { type = types.raw; };
     clanInternals = lib.mkOption { type = types.raw; };
   };
   config = {
+    flake.clan = {
+      inherit (config.clan.clanInternals) templates;
+    };
     flake.clanInternals = config.clan.clanInternals;
     flake.nixosConfigurations = config.clan.nixosConfigurations;
   };

lib/build-clan/interface.nix

@@ -69,6 +69,15 @@ in
             ```
       '';
     };
+
+    templates = lib.mkOption {
+      type = types.submodule { imports = [ ./templates/interface.nix ]; };
+      default = { };
+      description = ''
+        Define Clan templates.
+      '';
+    };
+
     inventory = lib.mkOption {
       type = types.submodule { imports = [ ../inventory/build-inventory/interface.nix ]; };
       description = ''
@@ -112,11 +121,11 @@ in
       type = types.lazyAttrsOf types.raw;
       default = { };
     };
+
     # flake.clanInternals
     clanInternals = lib.mkOption {
       # Hide from documentation. Exposes internals to the cli.
       visible = false;
-      # type = types.raw;
       # ClanInternals
       type = types.submodule {
         options = {

lib/build-clan/templates/interface.nix

@@ -0,0 +1,57 @@
+{
+  lib,
+  ...
+}:
+let
+  inherit (lib) types;
+
+  templateType = types.submodule (
+    { name, ... }:
+    {
+      options.description = lib.mkOption {
+        type = types.str;
+        default = name;
+        description = ''
+          The name of the template.
+        '';
+      };
+
+      options.path = lib.mkOption {
+        type = types.path;
+        description = ''
+          Holds the path to the clan template.
+        '';
+      };
+    }
+  );
+in
+{
+  options = {
+    # clan.templates.clan
+    clan = lib.mkOption {
+      type = types.attrsOf templateType;
+      default = { };
+      description = ''
+        Holds the different clan templates.
+      '';
+    };
+
+    # clan.templates.disko
+    disko = lib.mkOption {
+      type = types.attrsOf templateType;
+      default = { };
+      description = ''
+        Holds different disko templates.
+      '';
+    };
+
+    # clan.templates.machine
+    machine = lib.mkOption {
+      type = types.attrsOf templateType;
+      default = { };
+      description = ''
+        Holds the different machine templates.
+      '';
+    };
+  };
+}

templates/default.nix

@@ -1,39 +0,0 @@
-{ ... }:
-{
-  disko = {
-    single-disk = {
-      description = "A simple ext4 disk with a single partition";
-      path = ./disk/single-disk;
-    };
-  };
-
-  machine = {
-    flash-installer = {
-      description = "Initialize a new flash-installer machine";
-      path = ./clan/machineTemplates/machines/flash-installer;
-    };
-    new-machine = {
-      description = "Initialize a new machine";
-      path = ./clan/machineTemplates/machines/new-machine;
-    };
-  };
-
-  clan = {
-    default = {
-      description = "Initialize a new clan flake";
-      path = ./clan/new-clan;
-    };
-    minimal = {
-      description = "for clans managed via (G)UI";
-      path = ./clan/minimal;
-    };
-    flake-parts = {
-      description = "Flake-parts";
-      path = ./clan/flake-parts;
-    };
-    minimal-flake-parts = {
-      description = "Minimal flake-parts clan template";
-      path = ./clan/minimal-flake-parts;
-    };
-  };
-}

templates/flake-module.nix

@@ -1,5 +1,45 @@
 { self, inputs, ... }:
 {
+  clan.templates = {
+    disko = {
+      single-disk = {
+        description = "A simple ext4 disk with a single partition";
+        path = ./disk/single-disk;
+      };
+    };
+
+    machine = {
+      flash-installer = {
+        description = "Initialize a new flash-installer machine";
+        path = ./clan/machineTemplates/machines/flash-installer;
+      };
+
+      new-machine = {
+        description = "Initialize a new machine";
+        path = ./clan/machineTemplates/machines/new-machine;
+      };
+    };
+
+    clan = {
+      default = {
+        description = "Initialize a new clan flake";
+        path = ./clan/new-clan;
+      };
+      minimal = {
+        description = "for clans managed via (G)UI";
+        path = ./clan/minimal;
+      };
+      flake-parts = {
+        description = "Flake-parts";
+        path = ./clan/flake-parts;
+      };
+      minimal-flake-parts = {
+        description = "Minimal flake-parts clan template";
+        path = ./clan/minimal-flake-parts;
+      };
+    };
+  };
+
   flake = {
     checks.x86_64-linux.template-minimal =
       let