setup hetzner backups

void.nix

@@ -105,6 +105,45 @@
       Requires = "external.mount";
     };
   };
+  services.borgbackup.jobs."hetzner" = {
+    paths = [
+      "/home"
+      "/var"
+      "/pile"
+    ];
+    exclude = [
+      "/home/*/.local/share/Steam"
+      "**/*cache"
+      "**/*Cache"
+      "**/*trash"
+      "**/*Trash"
+      "/home/*/.mozilla/firefox"
+      "/home/*/GOG Games"
+      "**/target"
+      "**/result"
+      "/var/log"
+    ];
+    repo = "ssh://u480566-sub1@u480566-sub1.your-storagebox.de:23/./repo";
+    encryption = {
+      mode = "repokey-blake2";
+      passCommand = "cat /root/borgbackup/hetzner_passphrase";
+    };
+    environment.BORG_RSH = "ssh -i /root/borgbackup/hetzner_ssh_key";
+    compression = "auto,lzma";
+    startAt = "daily";
+    persistentTimer = true;
+    extraCreateArgs = ["--stats" "--info" "--list" "--filter" "AMEC"];
+    extraPruneArgs = ["--stats" "--info" "--list"];
+    prune.keep = {
+      within = "1d";
+      daily = 7;
+      weekly = 4;
+      monthly = 12;
+    };
+    preHook = ''
+      /bin/sh -c 'while ! /run/current-system/sw/bin/ping -c1 google.com; do sleep 1; done'
+    '';
+  };
 
   # postgresql backup
   services.postgresqlBackup = {