try enabling home-manager in tartars

flake.nix

@@ -35,6 +35,7 @@
     vscode-server,
     sops-nix,
     osbm-nvim,
+    home-manager,
     ...
   }: {
     nixosConfigurations = let
@@ -51,6 +52,7 @@
           ./hosts/tartarus/configuration.nix
           vscode-server.nixosModules.default
           sops-nix.nixosModules.sops
+          home-manager.nixosModules.home-manager
         ];
         specialArgs = {
           inherit pkgs-unstable system-label osbm-nvim;

home.nix

@@ -0,0 +1,27 @@
+{ config, pkgs, ... }:
+
+{
+  # Home Manager needs a bit of information about you and the
+  # paths it should manage.
+  home.username = "osbm";
+  home.homeDirectory = "/home/osbm";
+
+  # Packages that should be installed to the user profile.
+  home.packages = [
+    pkgs.htop
+    pkgs.fortune
+  ];
+
+  # This value determines the Home Manager release that your
+  # configuration is compatible with. This helps avoid breakage
+  # when a new Home Manager release introduces backwards
+  # incompatible changes.
+  #
+  # You can update Home Manager without changing this value. See
+  # the Home Manager release notes for a list of state version
+  # changes in each release.
+  home.stateVersion = "24.11";
+
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+

hosts/tartarus/configuration.nix

@@ -30,6 +30,11 @@
 
   services.vscode-server.enable = true;
 
+
+  home-manager.useGlobalPkgs = true;
+  home-manager.useUserPackages = true;
+  home-manager.users.osbm = import ./home.nix;
+
   virtualisation.virtualbox.host.enable = true;
   users.extraGroups.vboxusers.members = ["osbm"];