Add home-manager and fix worf

hosts/worf/configuration.nix

@@ -1,12 +1,21 @@
 { pkgs, ... }:
 {
-  # List packages installed in system profile. To search by name, run:
-  # $ nix-env -qaP | grep wget
+  # Many settings should be handled by home manager. System-wide settings are however managed here.
+
+  # System packages for all users
   environment.systemPackages = [
-    pkgs.neovim
-    pkgs.iterm2
+    pkgs.ripgrep
+    pkgs.wget
   ];
 
+  users.users.felixalb = {
+    home = "/Users/felixalb";
+    shell = pkgs.zsh;
+  };
+
+  programs.zsh.enable = true;
+  system.activationScripts.postActivation.text = ''sudo chsh -s ${pkgs.zsh}/bin/zsh''; # Since it's not possible to declare default shell, run this command after build
+
   # Auto upgrade nix package and the daemon service.
   services.nix-daemon.enable = true;
   nix.package = pkgs.nix;