diff --git a/src/system/machines/server/system.nix b/src/system/machines/server/system.nix
index 7a465a8..b0e8be6 100644
--- a/src/system/machines/server/system.nix
+++ b/src/system/machines/server/system.nix
@@ -8,6 +8,18 @@
     nginx.enable = true;
     forgejo.enable = true;
     frigate.enable = false;
+
+    backup = {
+      enable = true;
+      recipients = [
+        # TODO: Add your age recipients
+        # "${config.user.keys.age.yubikey}"
+        # "${config.user.keys.ssh.desktop}"
+      ];
+      destination = "gdrive:backups/server"; # TODO: configure rclone remote
+      schedule = "daily";
+      keepLast = 7;
+    };
   };
 
   users.users = {
diff --git a/src/system/modules/backup/default.nix b/src/system/modules/backup/default.nix
new file mode 100644
index 0000000..834e024
--- /dev/null
+++ b/src/system/modules/backup/default.nix
@@ -0,0 +1,95 @@
+{ pkgs, lib, config, ... }:
+
+with lib;
+let
+  cfg = config.modules.system.backup;
+
+  recipientArgs = concatMapStrings (r: "-r '${r}' ") cfg.recipients;
+
+  # Convert absolute paths to relative for tar, preserving structure
+  # e.g., /var/lib/forgejo -> var/lib/forgejo
+  tarPaths = map (p: removePrefix "/" p) cfg.paths;
+
+  backupScript = pkgs.writeShellScript "backup" ''
+    set -euo pipefail
+
+    TIMESTAMP=$(date +%Y%m%d-%H%M%S)
+    BACKUP_NAME="backup-$TIMESTAMP.tar.age"
+    TEMP_DIR=$(mktemp -d)
+    trap "rm -rf $TEMP_DIR" EXIT
+
+    echo "Starting backup: $BACKUP_NAME"
+    echo "Paths: ${concatStringsSep " " cfg.paths}"
+
+    ${pkgs.gnutar}/bin/tar -C / -cf - ${concatStringsSep " " tarPaths} | \
+      ${pkgs.age}/bin/age ${recipientArgs} -o "$TEMP_DIR/$BACKUP_NAME"
+
+    ${pkgs.rclone}/bin/rclone copy "$TEMP_DIR/$BACKUP_NAME" "${cfg.destination}"
+
+    # Prune old backups
+    ${pkgs.rclone}/bin/rclone lsf "${cfg.destination}" | \
+      sort -r | \
+      tail -n +$((${toString cfg.keepLast} + 1)) | \
+      while read -r old; do
+        ${pkgs.rclone}/bin/rclone delete "${cfg.destination}/$old"
+      done
+
+    echo "Backup complete"
+  '';
+
+in
+{
+  options.modules.system.backup = {
+    enable = mkEnableOption "Encrypted backups";
+
+    paths = mkOption {
+      type = types.listOf types.str;
+      default = [];
+      description = "Absolute paths to include in backup (structure preserved)";
+    };
+
+    recipients = mkOption {
+      type = types.listOf types.str;
+      default = [];
+      description = "Age public keys for encryption";
+    };
+
+    destination = mkOption {
+      type = types.str;
+      default = "";
+      description = "Rclone destination";
+    };
+
+    schedule = mkOption {
+      type = types.str;
+      default = "daily";
+      description = "Systemd calendar expression";
+    };
+
+    keepLast = mkOption {
+      type = types.int;
+      default = 3;
+      description = "Number of backups to keep";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ pkgs.rclone ];
+
+    systemd.services.backup = {
+      description = "Encrypted backup";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = backupScript;
+      };
+    };
+
+    systemd.timers.backup = {
+      wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnCalendar = cfg.schedule;
+        Persistent = true;
+      };
+    };
+  };
+}
diff --git a/src/system/modules/forgejo/default.nix b/src/system/modules/forgejo/default.nix
index 9c70bd0..ed6b461 100644
--- a/src/system/modules/forgejo/default.nix
+++ b/src/system/modules/forgejo/default.nix
@@ -73,6 +73,10 @@ in
       };
     };
 
+    modules.system.backup.paths = [
+      "/var/lib/forgejo"
+    ];
+
     services.nginx.virtualHosts."git.${domain}" = mkIf nginx.enable {
       useACMEHost = domain;
       forceSSL = true;
diff --git a/src/user/config/keys/pgp/windows.pub.key b/src/user/config/keys/pgp/windows.pub.key
deleted file mode 100644
index cf9f326..0000000
--- a/src/user/config/keys/pgp/windows.pub.key
+++ /dev/null
@@ -1,109 +0,0 @@
------BEGIN PGP PUBLIC KEY BLOCK-----
-
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-HRncE+dM4PA+Ge8YbBCL6pU=
-=X5C7
------END PGP PUBLIC KEY BLOCK-----
diff --git a/src/user/config/keys/ssh/windows.pub.key b/src/user/config/keys/ssh/windows.pub.key
deleted file mode 100644
index c44f5ba..0000000
--- a/src/user/config/keys/ssh/windows.pub.key
+++ /dev/null
@@ -1 +0,0 @@
-ssh-rsa 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 bryan@ramos.codes
diff --git a/src/user/modules/security/modules/gpg/default.nix b/src/user/modules/security/modules/gpg/default.nix
index 170b570..79b5ec5 100644
--- a/src/user/modules/security/modules/gpg/default.nix
+++ b/src/user/modules/security/modules/gpg/default.nix
@@ -21,11 +21,6 @@ in
           text = "${config.user.keys.pgp.primary}";
           trust = 5;
         }
-      ] ++ optionals (osConfig.networking.hostName == "desktop") [
-        {
-          text = "${config.user.keys.pgp.windows}";
-          trust = 5;
-        }
       ] ++ optionals (osConfig.networking.hostName == "workstation") [
         {
           text = "${config.user.keys.pgp.work}";