init

hosts/vessel/backup.nix

@@ -0,0 +1,31 @@
+{
+  pkgs,
+  lib,
+  ...
+}: {
+  systemd.timers.local-backup = {
+    description = "Local rsync Backup";
+    wantedBy = ["timers.target"];
+    timerConfig = {
+      OnCalendar = "*-*-* 00:00:00";
+      Persistent = true;
+      Unit = "local-backup.service";
+    };
+  };
+
+  systemd.services.local-backup = {
+    description = "Local rsync Backup";
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = ''${lib.getExe pkgs.rsync} --verbose --verbose --archive --update --delete /srv/storage/ /srv/backup/'';
+      User = "root";
+      Group = "root";
+    };
+  };
+
+  fileSystems."/srv/backup" = {
+    device = "/dev/disk/by-label/backup";
+    fsType = "btrfs";
+    options = ["subvol=main" "compress=zstd" "noatime"];
+  };
+}

hosts/vessel/default.nix

@@ -0,0 +1,32 @@
+{
+  inputs,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+
+    inputs.hardware.nixosModules.common-cpu-intel
+    inputs.hardware.nixosModules.common-gpu-intel
+    inputs.hardware.nixosModules.common-pc-ssd
+
+    ./backup.nix
+  ];
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  boot = {
+    initrd.availableKernelModules = ["ahci" "xhci_pci" "usbhid" "usb_storage" "sd_mod"];
+    kernelModules = ["kvm-intel"];
+  };
+
+  system.stateVersion = "24.05";
+
+  powerManagement.cpuFreqGovernor = "performance";
+
+  fileSystems."/srv/storage" = {
+    device = "/dev/disk/by-label/storage";
+    fsType = "btrfs";
+    options = ["subvol=main" "compress=zstd" "noatime"];
+  };
+}