1 files changed, 39 insertions, 0 deletions
diff --git a/sys/btrfs/mounts.nix b/sys/btrfs/mounts.nix
new file mode 100644
index 0000000..133f08f
--- /dev/null
+++ b/sys/btrfs/mounts.nix
@@ -0,0 +1,39 @@
+{ lib, config, pkgs, ... }:
+with lib; let
+  cfg = config.local.btrfs;
+in
+{
+  options.local.btrfs = {
+    mounts = mkOption {
+      default = { };
+
+      type = with lib.types; attrsOf (submodule {
+        options = {
+          ssd = mkOption {
+            type = bool;
+          };
+
+          device = mkOption {
+            type = str;
+          };
+
+          subvol = mkOption {
+            type = str;
+          };
+        };
+      });
+    };
+  };
+
+  config = mkIf (cfg.mounts != { }) {
+    fileSystems =
+      let
+        btrfsMount = { device, subvol, ssd }: {
+          inherit device;
+          fsType = "btrfs";
+          options = [ "noatime" "compress=zstd" "subvol=${subvol}" ] ++ optional ssd "ssd";
+        };
+      in
+      mapAttrs (_: btrfsMount) cfg.mounts;
+  };
+}