initial server config

services/backup.nix

@@ -0,0 +1,39 @@
+{ config, pkgs, ... }:
+
+{
+ 
+  services.postgresql.backup = {
+    enable = true;
+    location = "/var/lib/data/backups/postgres";
+    databases = [ "immich" "paperless" "nextcloud" "vaultwarden" ];
+  };
+ 
+  services.borgbackup.jobs."daily-backup" = {
+   
+    paths = [
+      "/var/lib/data"          
+      "/var/lib/vaultwarden"   
+      "/etc/nixos"             
+    ];
+    
+    exclude = [
+      "**/cache"
+      "**/.cache"
+      "/var/lib/data/immich/thumbs"
+    ];
+   
+    repo = "/var/lib/backup/borg-repo";
+   
+    encryption.mode = "none"; 
+
+    compression = "zstd,1";
+    startAt = "daily";
+
+    prune.keep = {
+      within = "1d";
+      daily = 7;
+      weekly = 4;
+      monthly = 6;
+    };
+  };
+}