1 files changed, 36 insertions, 0 deletions
diff --git a/os/core/storage.nix b/os/core/storage.nix
new file mode 100644
index 0000000..693e5e7
--- /dev/null
+++ b/os/core/storage.nix
@@ -0,0 +1,36 @@
+{ config, lib, ... }:
+let
+  cfg = config.sys.core.storage;
+in
+{
+  options.sys.core.storage = {
+    enable = lib.mkEnableOption "enables storage management";
+    
+    keepDays = lib.mkOption {
+      type = lib.types.int;
+      default = 14;
+      description = "Number of days to keep old Nix generations before GC";
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    nix.settings.auto-optimise-store = true;
+
+    programs.nh = {
+      enable = true;
+      clean.enable = true;
+      clean.extraArgs = "--keep-days ${toString cfg.keepDays} --keep 5";
+    };
+    
+    services.fstrim.enable = true;
+
+    services.btrfs.autoScrub = {
+        enable = true;
+        fileSystems = [ "/" ];
+    };
+
+    boot.tmp = {
+      useTmpfs = true;
+      tmpfsSize = "50%";
+    };
+  };
+}