backup

system/btrbk.nix

@@ -1,13 +1,19 @@
 { config, pkgs, ... }:
 
 {
-  services.btrbk.instances.btrbk = {
-    onCalendar = "hourly";
-    settings = { 
-      snapshot_preserve = "40d";
-      snapshot_preserve_min = "7d";
-      snapshot_dir = "/btrbk_snapshots";
-      subvolume = "/home";
+  services.btrbk = {
+    extraPackages = [ pkgs.mbuffer ];
+    instances.btrbk = {
+      onCalendar = "hourly";
+      settings = {
+        subvolume = "/home";
+        snapshot_preserve = "40d";
+        snapshot_preserve_min = "4d";
+        snapshot_dir = "/btrbk_snapshots";
+        target = "/run/media/till/backup";
+        target_preserve_min = "no";
+        target_preserve = "40d 52w *m";
+      };
     };
   };
 }

system/default.nix

@@ -28,7 +28,6 @@
       "wheel"
       "networkmanager"
     ];
-    packages = with pkgs; [];
     shell = pkgs.fish;
   };