feat: add platform-specific rebuild aliases and zoxide cd alias

- Add nixswitch/darwin-rebuild aliases for macOS using scutil hostname detection
- Add hmswitch/hm-user aliases for Linux using home-manager
- Add cd -> z alias to use zoxide for smarter directory navigation
- Maintain platform compatibility by keeping rebuild commands separate

Author: svnlto

common/zsh/shared.nix

@@ -18,6 +18,7 @@ rec {
     vim = "nvim";
     cat = "bat";
     tree = "tree -C";
+    cd = "z"; # Use zoxide for smarter directory navigation
 
     # Nix utilities (platform-agnostic)
     nix-shell-pure = "nix-shell --pure";

systems/aarch64-darwin/home.nix

@@ -6,4 +6,12 @@
 
   # macOS-specific home directory
   home.homeDirectory = "/Users/${username}";
+
+  # macOS-specific shell aliases
+  programs.zsh.shellAliases = {
+    nixswitch =
+      "sudo darwin-rebuild switch --flake ~/.config/nix#$(scutil --get LocalHostName)";
+    darwin-rebuild =
+      "sudo darwin-rebuild switch --flake ~/.config/nix#$(scutil --get LocalHostName)";
+  };
 }

systems/aarch64-linux/home-linux.nix

@@ -18,6 +18,12 @@
   # Linux-specific session variables
   home.sessionVariables = { EDITOR = "nvim"; };
 
+  # Linux-specific shell aliases
+  programs.zsh.shellAliases = {
+    hmswitch = "home-manager switch --flake ~/.config/nix#linux";
+    hm-user = "home-manager switch --flake ~/.config/nix#$(whoami)";
+  };
+
   # Linux-specific ZSH initialization
   programs.zsh.initContent = ''
     # Load worktree manager