Replace backintime with rsnapshot

nix/lib/nixos/configuration.nix

@@ -156,7 +156,6 @@
     ++ pkgs.lib.optionals desktop [
       acpi
       arandr
-      backintime
       bluetuith
       brightnessctl
       cpufrequtils

nix/modules/nixos/default.nix

@@ -2,5 +2,6 @@
   imports = [
     ./docker.nix
     ./kanata.nix
+    ./rsnapshot.nix
   ];
 }

nix/modules/nixos/rsnapshot.nix

@@ -0,0 +1,70 @@
+{ pkgs, ... }:
+
+let
+  backups1 = {
+    path = "/mnt/backup";
+    uuid = "fd47c61a-8aac-44ed-9a18-4ec43ee663fb";
+  };
+in
+{
+  systemd = {
+    mounts = [
+      {
+        where = "${backups1.path}";
+        what = "UUID=${backups1.uuid}";
+        type = "ext4";
+        options = "defaults,noatime,nofail";
+      }
+    ];
+
+    automounts = [
+      {
+        where = "${backups1.path}";
+        automountConfig.TimeoutIdleSec = "60";
+      }
+    ];
+  };
+
+  systemd.tmpfiles.rules = [
+    "d ${backups1.path} 755 root root -"
+  ];
+
+  services = {
+    udev.extraRules = ''
+      ACTION=="add", SUBSYSTEM=="block", ENV{ID_FS_UUID}=="${backups1.uuid}", ENV{SYSTEMD_WANTS}="mnt-backup.mount"
+      ACTION=="remove", SUBSYSTEM=="block", ENV{ID_FS_UUID}=="${backups1.uuid}", RUN+="${pkgs.systemd}/bin/systemctl stop mnt-backup.mount"
+    '';
+
+    rsnapshot = {
+      enable = true;
+      enableManualRsnapshot = true;
+
+      extraConfig = ''
+        lockfile	/home/opdavies/.rsnapshot.pid
+
+        snapshot_root	/mnt/backup/rsnapshot/
+        no_create_root	1
+
+        backup	/home/opdavies	opdavies/
+        backup	/media	media/
+        backup	/var/lib/immich/upload	immich/
+
+        exclude	".cache/"
+        exclude	".devenv/"
+        exclude	".direnv/"
+        exclude	"node_modules/"
+        exclude	"vendor/"
+
+        retain	daily	7
+        retain	weekly	4
+        retain	monthly	12
+      '';
+
+      cronIntervals = {
+        daily = "0 21 * * *";
+        monthly = "0 23 1 * 0";
+        weekly = "0 22 * * 0";
+      };
+    };
+  };
+}