From cba7b6b8335797137b387e08fa7ac955cb5692b2 Mon Sep 17 00:00:00 2001
From: andromeda <andromeda@lenovo>
Date: Tue, 30 Dec 2025 01:40:54 +0100
Subject: change machine specification

---
 machines/laptop/hardware-configuration.nix | 41 ++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 machines/laptop/hardware-configuration.nix

(limited to 'machines/laptop/hardware-configuration.nix')

diff --git a/machines/laptop/hardware-configuration.nix b/machines/laptop/hardware-configuration.nix
new file mode 100644
index 0000000..e0a98d9
--- /dev/null
+++ b/machines/laptop/hardware-configuration.nix
@@ -0,0 +1,41 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = ["xhci_pci" "nvme" "sdhci_pci"];
+  boot.initrd.kernelModules = [];
+  boot.kernelModules = ["kvm-intel"];
+  boot.extraModulePackages = [];
+
+  fileSystems."/" = {
+    device = "none";
+    fsType = "tmpfs";
+    options = ["defaults" "size=60%" "mode=755"];
+  };
+
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-uuid/0e586651-36f4-42b0-99b3-3f0704a894d6";
+    fsType = "btrfs";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/F425-55BA";
+    fsType = "vfat";
+    options = ["fmask=0022" "dmask=0022"];
+  };
+
+  swapDevices = [];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
-- 
cgit v1.3


From f53da444568b41d5fb49a6fcf216573ba3dbb8c5 Mon Sep 17 00:00:00 2001
From: andromeda <andromeda@lenovo>
Date: Tue, 30 Dec 2025 02:04:26 +0100
Subject: add btrfs root

---
 machines/laptop/hardware-configuration.nix | 33 +++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'machines/laptop/hardware-configuration.nix')

diff --git a/machines/laptop/hardware-configuration.nix b/machines/laptop/hardware-configuration.nix
index e0a98d9..654a931 100644
--- a/machines/laptop/hardware-configuration.nix
+++ b/machines/laptop/hardware-configuration.nix
@@ -18,11 +18,38 @@
   boot.extraModulePackages = [];
 
   fileSystems."/" = {
-    device = "none";
-    fsType = "tmpfs";
-    options = ["defaults" "size=60%" "mode=755"];
+    #device = "none";
+    #fsType = "tmpfs";
+    #options = ["defaults" "size=60%" "mode=755"];
+    device = "/dev/disk/by-uuid/16c93673-4f0e-4010-a7f4-7ccffb20edb7";
+    fsType = "btrfs";
   };
 
+  boot.initrd.postResumeCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount ${config.fileSystems."/".device} /btrfs_tmp
+    if [[ -e /btrfs_tmp/root ]]; then
+      mkdir -p /btrfs_tmp/old_roots
+      timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:$M:%S")
+      mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+
+    delete_subvolume_recursively() {
+      IFS=$'\n'
+      for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+        delete_subvolume_recursively "/btrfs_tmp/$i"
+      done
+      btrfs subvolume delete "$1"
+    }
+
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+      delete_subvolume_recursively "$i"
+    done
+
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
+
   fileSystems."/nix" = {
     device = "/dev/disk/by-uuid/0e586651-36f4-42b0-99b3-3f0704a894d6";
     fsType = "btrfs";
-- 
cgit v1.3


From 9a089ea5090c72e363446b1576724edfbdb42c81 Mon Sep 17 00:00:00 2001
From: andromeda <andromeda@lenovo>
Date: Tue, 30 Dec 2025 11:32:29 +0100
Subject: fix bugs with wallpaper and btrfs subvolume

---
 machines/laptop/hardware-configuration.nix | 1 +
 users/andromeda/home.nix                   | 2 +-
 users/andromeda/stylix.nix                 | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'machines/laptop/hardware-configuration.nix')

diff --git a/machines/laptop/hardware-configuration.nix b/machines/laptop/hardware-configuration.nix
index 654a931..bde1c83 100644
--- a/machines/laptop/hardware-configuration.nix
+++ b/machines/laptop/hardware-configuration.nix
@@ -23,6 +23,7 @@
     #options = ["defaults" "size=60%" "mode=755"];
     device = "/dev/disk/by-uuid/16c93673-4f0e-4010-a7f4-7ccffb20edb7";
     fsType = "btrfs";
+    options = ["subvol=root"];
   };
 
   boot.initrd.postResumeCommands = lib.mkAfter ''
diff --git a/users/andromeda/home.nix b/users/andromeda/home.nix
index 526d677..3812842 100644
--- a/users/andromeda/home.nix
+++ b/users/andromeda/home.nix
@@ -111,7 +111,7 @@ in {
       pkgs.tree
       pkgs.zoxide
     ];
-    file.${background-path}.source = pkgs.nixos-artwork.wallpapers.gear;
+    file.${background-path}.source = config.stylix.image;
   };
   programs = {
     alacritty.enable = true;
diff --git a/users/andromeda/stylix.nix b/users/andromeda/stylix.nix
index 2e7af13..7f56575 100644
--- a/users/andromeda/stylix.nix
+++ b/users/andromeda/stylix.nix
@@ -10,6 +10,7 @@
     # silk-light is light theme
     base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-material-dark-hard.yaml";
     polarity = "dark";
+    image = "${pkgs.nixos-artwork.wallpapers.gear}/share/backgrounds/nixos/nix-wallpaper-gear.png";
     fonts = {
       monospace = {
         package = pkgs.miracode;
-- 
cgit v1.3