Begin rewrite

hosts/puter/default.nix

@@ -0,0 +1,97 @@
+{ config, pkgs, lib, ... }:
+
+{
+  imports = [
+    ./persist.nix
+    ./disko.nix
+    ./packages.nix
+  ];
+
+  time.timeZone = "Europe/Berlin";
+
+  networking = {
+    hostName = "puter";
+    useDHCP = true;
+  };
+
+  hardware.cpu.amd.updateMicrocode = true;
+
+  services = {
+    fstrim.enable = true;
+    btrfs.autoScrub.enable = true;
+    fwupd.enable = true;
+  };
+
+  boot = {
+    loader = {
+      canTouchEfiVariables = true;
+      grub = {
+        enable = true;
+        efiSupport = true;
+        gfxmodeEfi = "1920x1080";
+      };
+    };
+
+    tmp.useTmpfs = true;
+    kernelPackages = pkgs.linuxPackages_xanmod_latest;
+    supportedFilesystems = [ "btfs" "vfat" "xfs" ];
+    kernelModules = [ "kvm-amd" ];
+    extraModprobeConfig = "options kvm_amd nested=1";
+    initrd = {
+      availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+      postDeviceCommands = 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 = {
+    # These are system specific. If you have any additional drives that are not
+    # your root device you can add and mount them here. Added nofail so that you can
+    # install this configuration on a device without it exploding when you don't have
+    # these specific partitions.
+
+    "/mnt/vault" = {
+      device = "/dev/disk/by-uuid/048d175b-0e3e-4ec7-955b-3d9a45f9f237";
+      options = [ "nofail" ];
+      fsType = "xfs";
+    };
+
+    "/mnt/attic" = {
+      device = "/dev/disk/by-uuid/ec32ce36-9f53-4f44-ac8f-2c9163f0b3d7";
+      options = [ "nofail" ];
+      fsType = "xfs";
+    };
+  };
+
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+    };
+    hostPlatform = lib.mkDefault "x86_64-linux";
+  };
+
+  system.stateVersion = "24.11"; # [managed by install.sh] { state version }
+}
+

hosts/puter/disko.nix

@@ -0,0 +1,62 @@
+{ ... }:
+
+{
+  disko.devices = {
+    master = {
+      type = "disk";
+      device = ""; # [managed by install.sh] { device }
+      content = {
+        type = "gpt";
+        partitions = {
+          ESP = {
+            priority = 1;
+            name = "efi";
+            start = "1M";
+            end = "1024M";
+            type = "EF00";
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+              mountOptions = [
+                "umask=0077"
+                "noatime"
+              ];
+            };
+          };
+          root = {
+            size = "100%";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" "-L nixos" ];
+              postCreateHook = ''
+                TMP_MNT=$(mktemp -d)
+                MNT_PART="" # [managed by install.sh] { root partition }
+                mount "$MNT_PART" "$TMP_MNT" -o subvol=/
+                trap 'umount "$TMP_MNT"; rm -rf "$TMP_MNT"' EXIT
+                btrfs subvolume snapshot "$TMP_MNT/root" "$TMP_MNT/blank"
+              '';
+              subvolumes = {
+                "/root" = {
+                  mountpoint = "/";
+                  mountOptions = [
+                    "noatime"
+                    "compress=zstd"
+                  ];
+                };
+
+                "/nix" = {
+                  mountpoint = "/nix";
+                  mountOptions = [
+                    "noatime"
+                    "compress=zstd"
+                  ];
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/puter/packages.nix

@@ -0,0 +1,11 @@
+{ ... }:
+
+{
+  imports = let
+    modules = ../../modules/nixos;
+  in [
+    "${modules}/hardware/nvidia"
+    "${modules}/hardware/audio"
+  ];
+}
+