diff --git a/hosts/hermit/filesystem/default.nix b/hosts/hermit/filesystem/default.nix
new file mode 100644
index 0000000..bad8be3
--- /dev/null
+++ b/hosts/hermit/filesystem/default.nix
@@ -0,0 +1,45 @@
+{
+  config = {
+    boot.initrd.luks.devices."cryptroot".device = "/dev/disk/by-uuid/96e8f3d6-8d2d-4e2d-abd9-3eb7f48fed02";
+    fileSystems = {
+      "/boot" = {
+        device = "/dev/disk/by-uuid/7825-451F";
+        fsType = "vfat";
+      };
+      # root on tmpfs
+      "/" = {
+        device = "none";
+        fsType = "tmpfs";
+        options = ["defaults" "size=25%" "mode=755"];
+      };
+      "/nix" = {
+        device = "/dev/disk/by-uuid/f0569993-722e-4721-b0d9-8ac537a7a548";
+        fsType = "btrfs";
+        options = ["subvol=nix" "compress=zstd" "noatime"];
+      };
+      "/persist" = {
+        device = "/dev/disk/by-uuid/f0569993-722e-4721-b0d9-8ac537a7a548";
+        neededForBoot = true;
+        fsType = "btrfs";
+        options = ["subvol=persist" "compress=zstd" "noatime"];
+      };
+      "/home" = {
+        device = "/dev/disk/by-uuid/f0569993-722e-4721-b0d9-8ac537a7a548";
+        fsType = "btrfs";
+        options = ["subvol=home" "compress=zstd" "noatime"];
+      };
+      "/swap" = {
+        device = "/dev/disk/by-uuid/f0569993-722e-4721-b0d9-8ac537a7a548";
+        fsType = "btrfs";
+
+        options = ["subvol=swap" "compress=lzo" "noatime"];
+      };
+    };
+    swapDevices = [
+      {
+        device = "/swap/swapfile";
+        size = (1024 * 16) + (1024 * 2);
+      }
+    ];
+  };
+}