From 57c4ac099e63b2735999fbabc8b641b95de01247 Mon Sep 17 00:00:00 2001
From: moons-14 <moons@moons14.com>
Date: Thu, 28 May 2026 12:34:05 +0900
Subject: [PATCH] feat: add hosts and overlays module structure

---
 .gitignore           |  2 ++
 flake.nix            |  4 +++-
 hosts/default.nix    | 39 +++++++++++++++++++++++++++++++++++++++
 overlays/default.nix |  1 +
 4 files changed, 45 insertions(+), 1 deletion(-)
 create mode 100644 hosts/default.nix
 create mode 100644 overlays/default.nix

diff --git a/.gitignore b/.gitignore
index 55c1d18..a9f0508 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,5 +11,7 @@
 !/flake.lock
 
 !shells/
+!hosts/
+!overlays/
 
 !/flake/
diff --git a/flake.nix b/flake.nix
index ec31423..9d2d8a4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -95,9 +95,11 @@
       systems = import systems;
 
       imports = [
+        ./overlays
+        ./hosts
+        ./shells
         ./flake/formatter.nix
         ./flake/git-hooks.nix
-        ./shells
       ];
     };
 }
diff --git a/hosts/default.nix b/hosts/default.nix
new file mode 100644
index 0000000..f2bcbc0
--- /dev/null
+++ b/hosts/default.nix
@@ -0,0 +1,39 @@
+{
+  inputs,
+  config,
+  lib,
+  ...
+}:
+let
+  inherit (inputs.nixpkgs.lib) nixosSystem;
+
+  mkSystem =
+    {
+      host,
+      system,
+      extraModules ? [ ],
+      ...
+    }:
+    assert lib.assertMsg (lib.elem system config.systems)
+      "mkSystem: system '${system}' not in valid systems: ${lib.generators.toPretty { } config.systems}";
+    nixosSystem {
+      inherit system;
+      modules = [
+        {
+          networking.hostName = lib.mkDefault host;
+        }
+      ]
+      ++ extraModules;
+      specialArgs = { inherit inputs; };
+    };
+in
+{
+  flake.nixosConfigurations = {
+    nix-example = mkSystem {
+      host = "nix-example";
+      system = "x86_64-linux";
+      profile = "laptop";
+      extraModules = [ ];
+    };
+  };
+}
diff --git a/overlays/default.nix b/overlays/default.nix
new file mode 100644
index 0000000..958608a
--- /dev/null
+++ b/overlays/default.nix
@@ -0,0 +1 @@
+_: { }