feat(nixos): add multi-arch support and refactor system configs

- add aarch64-linux to supported systems (flake + pkgs)
- refactor host definitions into tty/desktop/laptop configurations
- introduce sharedModules to reduce duplication
- split system modules into base, gui, and laptop groups
- add headless (tty) configuration

feat(fish): add Ctrl+Delete and Alt+Delete bindings
- Ctrl+Delete → kill-word
- Alt+Delete → kill-token

chore(hosts): remove explicit hostname from aesthetic

chore(services): remove forced disable of speechd

flake.nix

@@ -3,7 +3,7 @@
 
   outputs = inputs:
     inputs.flake-parts.lib.mkFlake {inherit inputs;} {
-      systems = ["x86_64-linux"];
+      systems = ["x86_64-linux" "aarch64-linux"];
 
       imports = [./hosts ./pkgs];
 

home/terminal/shell/fish.nix

@@ -37,7 +37,9 @@
           # Custom bindings
           for mode in insert default
             bind -M $mode ctrl-backspace backward-kill-word
+            bind -M $mode ctrl-delete kill-word
             bind -M $mode alt-backspace backward-kill-token
+            bind -M $mode alt-delete kill-token
             bind -M $mode ctrl-z undo
           end
           bind -M insert \cx\ce edit_command_buffer
@@ -173,8 +175,6 @@ end
         alias cleanram="sudo sh -c 'sync; echo 3 > /proc/sys/vm/drop_caches'"
         alias trimall="sudo fstrim -va"
         alias c="clear"
-        alias test-build="sudo nixos-rebuild test --flake /etc/nixos#aesthetic"
-        alias switch-build="sudo nixos-rebuild switch --flake /etc/nixos#aesthetic"
         alias add="git add ."
         alias commit="git commit"
         alias push="git push"

hosts/aesthetic/default.nix

@@ -132,8 +132,6 @@
     '';
   };
 
-  networking.hostName = "aesthetic";
-
   security.tpm2.enable = true;
 
   # Additional security hardening for HSI compliance

hosts/default.nix

@@ -2,32 +2,44 @@
   self,
   inputs,
   ...
-}: {
-  flake.nixosConfigurations = let
+}: let
   # shorten paths
   inherit (inputs.nixpkgs.lib) nixosSystem;
   mod = "${self}/system";
   home = "${self}/home";
 
   # get the basic config to build on top of
-    inherit (import "${self}/system") desktop laptop;
+  inherit (import "${self}/system") tty desktop laptop;
 
   # get these into the module system
   specialArgs = {inherit inputs self;};
-  in {
-    aesthetic = nixosSystem {
-      inherit specialArgs;
-      modules =
-        desktop
-        ++ laptop
-        ++ [
+
+  # shared modules for all configurations
+  sharedModules = [
     ./aesthetic
     "${mod}/services/gnome-services.nix"
     "${mod}/core/limine.nix"
     "${home}"
-
     inputs.agenix.nixosModules.default
   ];
+in {
+  flake.nixosConfigurations = {
+    # TTY: desktop headless (no GUI)
+    tty = nixosSystem {
+      inherit specialArgs;
+      modules = tty ++ sharedModules;
+    };
+
+    # Desktop: desktop with GUI
+    desktop = nixosSystem {
+      inherit specialArgs;
+      modules = desktop ++ sharedModules;
+    };
+
+    # Laptop: laptop with GUI + battery + bluetooth
+    laptop = nixosSystem {
+      inherit specialArgs;
+      modules = laptop ++ sharedModules;
     };
   };
 }

pkgs/default.nix

@@ -1,5 +1,5 @@
 {
-  systems = ["x86_64-linux"];
+  systems = ["x86_64-linux" "aarch64-linux"];
 
   perSystem = {pkgs, ...}: {
     packages = {

secrets/secrets.nix

@@ -1,5 +1,5 @@
 let
-  host = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICL0B9moxOPY4XYim8826M+Tf0sWErwWljz1gkDZPwuF root@aesthetic";
+  host = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICL0B9moxOPY4XYim8826M+Tf0sWErwWljz1gkDZPwuF";
 in {
   "gitea_laptop.age".publicKeys = [
     host

system/default.nix

@@ -1,28 +1,37 @@
 let
-  desktop = [
-    ./core/boot.nix
+  # Base system - common for all configurations
+  base = [
     ./core/default.nix
 
-    ./hardware/graphics.nix
     ./hardware/fwupd.nix
-
     ./network/default.nix
 
     ./programs
 
-    ./services
     ./services/docker.nix
-    ./services/greetd.nix
-    ./services/pipewire.nix
     ./services/xdg-portal-fix.nix
   ];
 
-  laptop =
-    desktop
-    ++ [
+  # GUI-specific modules (display manager, GPU, pipewire)
+  gui = [
+    ./core/boot.nix          # plymouth boot splash
+    ./hardware/graphics.nix   # GPU drivers
+    ./services/greetd.nix      # display manager
+    ./services/pipewire.nix   # audio
+  ];
+
+  # Laptop-specific modules (battery, bluetooth)
+  laptop = [
     ./hardware/bluetooth.nix
     ./services/power.nix
   ];
 in {
-  inherit desktop laptop;
+  # TTY: desktop headless (no GUI)
+  tty = base;
+
+  # Desktop: desktop with GUI
+  desktop = base ++ gui;
+
+  # Laptop: laptop with GUI + battery + bluetooth
+  laptop = base ++ gui ++ laptop;
 }

system/services/default.nix

@@ -11,7 +11,6 @@
 
     irqbalance.enable = true;
     thermald.enable = true;
-    speechd.enable = lib.mkForce false;
   };
 
   # Use in place of hypridle's before_sleep_cmd, since systemd does not wait for