System snapshots and window manager configs

hosts/desktop/snapshot.nix

@@ -0,0 +1,18 @@
+{ config, pkgs, inputs, ... }:
+{
+	services.btrbk = {
+		instances."local_snapshots" = {
+			onCalendar = "hourly";
+			settings = {
+				snapshot_preserve = "14d 8w 120m";
+				snapshot_preserve_min = "7d";
+				volume = {
+					"/media/2tb" = {
+						snapshot_dir = "/media/2tb/@snapshots";
+						subvolume = "@home";
+					};
+				};
+			};
+		};
+	};
+}