From 7b591ba470b22bba6553c78bfb4dad2654dca8eb Mon Sep 17 00:00:00 2001
From: Mohammad Rafiq <rafiq@rrv.sh>
Date: Sun, 18 May 2025 15:46:39 +0800
Subject: [PATCH] feat(flake.nix): add impermanence module to flake

---
 flake.lock                               | 16 ++++++++++++++++
 flake.nix                                |  4 +++-
 modules/nixos/hardware/default.nix       |  1 +
 modules/nixos/hardware/networking.nix    | 10 ++++++++++
 modules/nixos/system/default.nix         |  1 +
 systems/x86_64-linux/nemesis/default.nix | 10 +---------
 6 files changed, 32 insertions(+), 10 deletions(-)
 create mode 100644 modules/nixos/hardware/networking.nix

diff --git a/flake.lock b/flake.lock
index 23476ee..97d79b9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -73,6 +73,21 @@
         "type": "github"
       }
     },
+    "impermanence": {
+      "locked": {
+        "lastModified": 1737831083,
+        "narHash": "sha256-LJggUHbpyeDvNagTUrdhe/pRVp4pnS6wVKALS782gRI=",
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "rev": "4b3e914cdf97a5b536a889e939fb2fd2b043a170",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1747327360,
@@ -92,6 +107,7 @@
     "root": {
       "inputs": {
         "disko": "disko",
+        "impermanence": "impermanence",
         "nixpkgs": "nixpkgs",
         "snowfall-lib": "snowfall-lib"
       }
diff --git a/flake.nix b/flake.nix
index d8f2c11..2eb85aa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,6 +5,7 @@
     disko.inputs.nixpkgs.follows = "nixpkgs";
     snowfall-lib.url = "github:snowfallorg/lib";
     snowfall-lib.inputs.nixpkgs.follows = "nixpkgs";
+    impermanence.url = "github:nix-community/impermanence";
   };
 
   outputs = inputs: 
@@ -13,7 +14,8 @@
 		src = ./.;
 		snowfall.namespace = "pantheon";
 		systems.modules.nixos = with inputs; [
-			inputs.disko.nixosModules.disko
+			disko.nixosModules.disko
+			impermanence.nixosModules.impermanence
 		];
 	 };
 }
diff --git a/modules/nixos/hardware/default.nix b/modules/nixos/hardware/default.nix
index 961a605..5743df3 100644
--- a/modules/nixos/hardware/default.nix
+++ b/modules/nixos/hardware/default.nix
@@ -5,6 +5,7 @@
     ./nvidia.nix
     ./audio.nix
     ./cpu.nix
+    ./networking.nix
   ];
 
   options.hardware = {
diff --git a/modules/nixos/hardware/networking.nix b/modules/nixos/hardware/networking.nix
new file mode 100644
index 0000000..8ef7679
--- /dev/null
+++ b/modules/nixos/hardware/networking.nix
@@ -0,0 +1,10 @@
+{ config, lib, ... }:
+{
+  config = lib.mkMerge [
+    {
+  networking.useDHCP = lib.mkDefault true;
+  networking.hostName = config.system.hostname;
+  networking.networkmanager.enable = true;
+    }
+  ];
+}
diff --git a/modules/nixos/system/default.nix b/modules/nixos/system/default.nix
index a762a7b..be676e6 100644
--- a/modules/nixos/system/default.nix
+++ b/modules/nixos/system/default.nix
@@ -8,6 +8,7 @@
   ];
 
   options.system = {
+   hostname = lib.pantheon.mkStrOption;
    mainUser = lib.pantheon.mkStrOption;
    bootloader = lib.pantheon.mkStrOption;
   };
diff --git a/systems/x86_64-linux/nemesis/default.nix b/systems/x86_64-linux/nemesis/default.nix
index 2e97738..e08223d 100644
--- a/systems/x86_64-linux/nemesis/default.nix
+++ b/systems/x86_64-linux/nemesis/default.nix
@@ -1,5 +1,6 @@
 { config, lib, pkgs, ... }:
 {
+  system.hostname = "nemesis";
   system.mainUser = "rafiq";
   system.bootloader = "systemd-boot";
   hardware.drives.btrfs = {
@@ -10,15 +11,6 @@
   hardware.platform = "amd";
   hardware.gpu = "nvidia";
 
-
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-
-
-
-  networking.useDHCP = lib.mkDefault true;
-  networking.hostName = "nemesis"; # Define your hostname.
-  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
-
-
 }