backups with restic integrated

hosts/desktop/default.nix

@@ -103,6 +103,7 @@
     whipper
 	flac
 	tor-browser
+	restic
   ];
 
   programs.steam.enable = true;
@@ -130,4 +131,13 @@
   nixpkgs.config.allowUnfree = true;
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
   system.stateVersion = "26.05";
+
+  services.restic.backups.backup = {
+    repository = "rest:http://10.0.0.4:8000/backup";
+	initialize = true;
+	passwordFile = "/home/lilac/test-password";
+	paths = [ "/var/lib/immich" "/var/lib/music" "/var/lib/gitea" ];
+	timerConfig.OnCalendar = "03:30";
+	pruneOpts = [ "--keep-daily 7" "--keep-weekly 4" "--keep-monthly 12" ];
+  };
 }