diff --git a/flake.lock b/flake.lock
index 192da82..774bc8d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1695541019,
-        "narHash": "sha256-rs++zfk41K9ArWkDAlmBDlGlKO8qeRIRzdjo+9SmNFI=",
+        "lastModified": 1695887975,
+        "narHash": "sha256-u3+5FR12dI305jCMb0fJNQx2qwoQ54lv1tPoEWp0hmg=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "61283b30d11f27d5b76439d43f20d0c0c8ff5296",
+        "rev": "adcfd6aa860d1d129055039696bc457af7d50d0e",
         "type": "github"
       },
       "original": {
@@ -16,11 +16,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1695559356,
-        "narHash": "sha256-kXZ1pUoImD9OEbPCwpTz4tHsNTr4CIyIfXb3ocuR8sI=",
+        "lastModified": 1695825837,
+        "narHash": "sha256-4Ne11kNRnQsmSJCRSSNkFRSnHC4Y5gPDBIQGjjPfJiU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "261abe8a44a7e8392598d038d2e01f7b33cf26d0",
+        "rev": "5cfafa12d57374f48bcc36fda3274ada276cf69e",
         "type": "github"
       },
       "original": {
@@ -31,11 +31,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1695644571,
-        "narHash": "sha256-asS9dCCdlt1lPq0DLwkVBbVoEKuEuz+Zi3DG7pR/RxA=",
+        "lastModified": 1695830400,
+        "narHash": "sha256-gToZXQVr0G/1WriO83olnqrLSHF2Jb8BPcmCt497ro0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6500b4580c2a1f3d0f980d32d285739d8e156d92",
+        "rev": "8a86b98f0ba1c405358f1b71ff8b5e1d317f5db2",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 61a2c2d..aa36d24 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,10 +9,17 @@
 
   outputs = { nixpkgs, nixos-hardware, nixpkgs-unstable, ... }:
     let
-      system = "x86_64-linux";
+      system-x86 = "x86_64-linux";
       overlay-unstable = final: prev: {
         unstable = import nixpkgs-unstable {
-          inherit system;
+          inherit system-x86;
+          config.allowUnfree = true;
+        };
+      };
+      system-arm64 = "aarch64-linux";
+      overlay-unstable-arm = final: prev: {
+        unstable = import nixpkgs-unstable {
+          inherit system-arm64;
           config.allowUnfree = true;
         };
       };
@@ -44,7 +51,7 @@
           ./extras/gaming.nix
         ];
         NObangers = nixosSystem [
-          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
+          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable-arm ]; })
           nixos-hw.raspberry-pi-4
           ./systems/BASED.nix
           ./systems/NObangers.nix
diff --git a/systems/BASED.nix b/systems/BASED.nix
index 6ee71f4..bb4b2c0 100644
--- a/systems/BASED.nix
+++ b/systems/BASED.nix
@@ -16,7 +16,7 @@
     nfs-utils
     nil
     nixpkgs-fmt
-    onlyoffice-bin
+    # onlyoffice-bin
     ouch
     ripgrep-all
     skim
diff --git a/systems/NObangers.nix b/systems/NObangers.nix
index e69fd7a..2659629 100644
--- a/systems/NObangers.nix
+++ b/systems/NObangers.nix
@@ -11,7 +11,7 @@
   services.btrfs.autoScrub.enable = false;
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "usbhid" ];
-  boot.loader.grub.enable = true;
+  boot.loader.grub.enable = false;
   boot.loader.generic-extlinux-compatible.enable = true;
   console.enable = false;
   powerManagement.cpuFreqGovernor = "ondemand";
@@ -19,8 +19,8 @@
   hardware = {
     raspberry-pi."4" = {
       apply-overlays-dtmerge.enable = true;
-      # audio.enable = true;
-      # fkms-3d.enable = true;
+      audio.enable = true;
+      fkms-3d.enable = true;
     };
     deviceTree = {
       enable = true;
diff --git a/users/tao.nix b/users/tao.nix
index 7564a74..13cfe49 100644
--- a/users/tao.nix
+++ b/users/tao.nix
@@ -13,7 +13,7 @@
     # enchant
     # nuspell
     # hunspellDicts.en-us-large
-    rustdesk
+    # rustdesk
     bottles
     cider
     darktable