make slimmed down handler user for HandlerOne migration

home/handler/common/core/default.nix

@@ -0,0 +1,47 @@
+{
+  inputs,
+  config,
+  lib,
+  pkgs,
+  hostSpec,
+  ...
+}:
+let
+  platform = if hostSpec.isDarwin then "darwin" else "nixos";
+in
+{
+  imports = lib.flatten [
+    (map lib.custom.relativeToRoot [
+      "modules/common/host-spec.nix"
+      "modules/home"
+    ])
+    #./${platform.nix}
+    ./direnv.nix
+    ./git.nix
+    ./tmux.nix
+    ./starship.nix
+  ];
+
+  home.packages = builtins.attrValues {
+    inherit (pkgs)
+      screen
+      ouch
+      ;
+  };
+
+  inherit hostSpec;
+
+  home = {
+    username = lib.mkDefault config.hostSpec.username;
+    homeDirectory = lib.mkDefault config.hostSpec.home;
+    stateVersion = lib.mkDefault "24.05";
+
+    sessionVariables = {
+      SHELL = "zsh";
+      TERM = "foot";
+      TERMINAL = "foot";
+      VISUAL = "nvim";
+      EDITOR = "nvim";
+    };
+  };
+}