refactor: add NixOS configuration files for server and workstation setups

config/nixos/hardware/mennos-server/zfs.nix

@@ -0,0 +1,147 @@
+{ config, pkgs, ... }:
+
+let
+  # Create a script to set permissions
+  permissionsScript = pkgs.writeShellScriptBin "set-zfs-permissions" ''
+    # Set default permissions for all service directories
+    find /mnt/services -mindepth 1 -maxdepth 1 -type d \
+      -exec chmod 775 {} \; \
+      -exec chown menno:users {} \;
+
+    # Special cases
+    chmod 774 /mnt/services/golink
+    chown 65532:users /mnt/services/golink
+
+    chmod 754 /mnt/services/torrent
+    chown menno:users /mnt/services/torrent
+
+    chmod 755 /mnt/services/proxy
+    chmod 755 /mnt/services/static-websites
+
+    chown menno:users /mnt/backups
+    chown menno:users /mnt/backups/photos
+    chown menno:users /mnt/backups/services
+    chmod 775 /mnt/backups
+    chmod 775 /mnt/backups/photos
+    chmod 775 /mnt/backups/services
+
+    # Set permissions for other mount points
+    for dir in /mnt/{ai,astrophotography,audiobooks,downloads,ISOs,movies,music,old_backups,photos,stash,tvshows,VMs}; do
+      chmod 755 "$dir"
+      chown menno:users "$dir"
+    done
+  '';
+in
+{
+  environment.systemPackages = with pkgs; [
+    zfs
+    zfstools
+    permissionsScript
+    smartmontools
+  ];
+
+  # Add the permissions service
+  systemd.services.zfs-permissions = {
+    description = "Set ZFS mount permissions";
+
+    # Run after ZFS mounts are available
+    after = [ "zfs.target" ];
+    requires = [ "zfs.target" ];
+
+    # Run on boot and every 6 hours
+    startAt = "*-*-* */6:00:00";
+
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${permissionsScript}/bin/set-zfs-permissions";
+      User = "root";
+      Group = "root";
+    };
+  };
+
+  # Enable ZFS support
+  boot.supportedFilesystems = [
+    "ntfs"
+    "zfs"
+  ];
+
+  # ZFS system services
+  services.zfs = {
+    autoScrub = {
+      enable = true;
+      interval = "weekly";
+    };
+  };
+
+  # If you want to keep compression settings
+  boot.kernelParams = [
+    "zfs.zfs_compressed_arc_enabled=1" # Enable compressed ARC
+    "zfs.zfs_arc_max=21474836480" # 20 GiB
+  ];
+
+  fileSystems = {
+    # backup ZFS mount points
+    "/mnt/backups/photos" = {
+      device = "backup/photos-duplicati";
+      fsType = "zfs";
+    };
+    "/mnt/backups/services" = {
+      device = "backup/services-duplicati";
+      fsType = "zfs";
+    };
+
+    # datapool ZFS mount points
+    "/mnt/ai" = {
+      device = "datapool/ai";
+      fsType = "zfs";
+    };
+    "/mnt/astrophotography" = {
+      device = "datapool/astro";
+      fsType = "zfs";
+    };
+    "/mnt/audiobooks" = {
+      device = "datapool/audiobooks";
+      fsType = "zfs";
+    };
+    "/mnt/downloads" = {
+      device = "datapool/downloads";
+      fsType = "zfs";
+    };
+    "/mnt/ISOs" = {
+      device = "datapool/isos";
+      fsType = "zfs";
+    };
+    "/mnt/movies" = {
+      device = "datapool/movies";
+      fsType = "zfs";
+    };
+    "/mnt/music" = {
+      device = "datapool/music";
+      fsType = "zfs";
+    };
+    "/mnt/old_backups" = {
+      device = "datapool/old_backups";
+      fsType = "zfs";
+    };
+    "/mnt/photos" = {
+      device = "datapool/photos";
+      fsType = "zfs";
+    };
+    "/mnt/services" = {
+      device = "datapool/services";
+      fsType = "zfs";
+    };
+    "/mnt/stash" = {
+      device = "datapool/stash";
+      fsType = "zfs";
+    };
+    "/mnt/tvshows" = {
+      device = "datapool/tv_shows";
+      fsType = "zfs";
+    };
+    "/mnt/VMs" = {
+      device = "datapool/vms";
+      fsType = "zfs";
+    };
+  };
+}