Move modules into platforms/ directory

No meaningful change. This aligns closer with patterns I've been
developing in my dotfiles.

Author: PsychoLlama

README.md

@@ -20,9 +20,9 @@ The file storage module manages ZFS pools and datasets. A host profile attaches
 
 ## Project Structure
 
-- `nixos/modules/lab`: Unopinionated "library" modules for building a home lab.
-- `nixos/tests`: Virtual machine tests for services in `modules/lab`.
-- `nixos/modules/lab/profiles`: Opinionated configurations.
+- `platforms/nixos/modules/lab`: Unopinionated "library" modules for building a home lab.
+- `platforms/nixos/tests`: Virtual machine tests for services in `modules/lab`.
+- `platforms/nixos/modules/lab/profiles`: Opinionated configurations.
 - `hosts`: Per-host configurations. They are thin wrappers around profiles.
 
 Tests can be executed by entering a dev shell and running `project test <drv_path>`:

flake.nix

@@ -327,7 +327,7 @@
           # of `flake.packages` while remaining easily scriptable.
           testScripts = eachSystem (
             system: pkgs: {
-              docs = pkgs.callPackage ./nixos/doc {
+              docs = pkgs.callPackage ./platforms/nixos/doc {
                 inherit (flake-inputs) colmena home-manager clapfile;
                 revision = self.rev or "latest";
               };
@@ -348,7 +348,9 @@
                 # ```
                 # nix build .#tests.<module>.<test-name>
                 # ```
-                passthru = pkgs.callPackage ./nixos/tests { inherit (flake-inputs) colmena clapfile home-manager; };
+                passthru = pkgs.callPackage ./platforms/nixos/tests {
+                  inherit (flake-inputs) colmena clapfile home-manager;
+                };
               };
             }
           );

lib/define-host.nix

@@ -30,7 +30,7 @@ in
   imports = [
     inputs.home-manager.nixosModules.home-manager
     inputs.clapfile.nixosModules.nixos
-    ../nixos/modules
+    ../platforms/nixos/modules
     host.profile
     host.module
     macvlan-proxy
@@ -75,7 +75,7 @@ in
     useGlobalPkgs = lib.mkDefault true;
     useUserPackages = lib.mkDefault true;
     sharedModules = [
-      ../home-manager/modules
+      ../platforms/home-manager/modules
 
       {
         # Manage the system shell by default.

home-manager/modules/default.nix renamed to platforms/home-manager/modules/default.nix

@@ -18,7 +18,7 @@ let
       ];
 
       home-manager = {
-        sharedModules = [ ../../home-manager/modules ];
+        sharedModules = [ ../../platforms/home-manager/modules ];
         useGlobalPkgs = true;
         useUserPackages = true;
       };