chore(users): grfn -> aspen

Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>

users/aspen/system/home/platforms/darwin.nix

@@ -0,0 +1,26 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+  config = {
+    home.packages = with pkgs; [
+      coreutils
+      gnupg
+      pinentry_mac
+    ];
+
+    home.activation.linkApplications = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+      $DRY_RUN_CMD ln -sf $VERBOSE_ARG \
+        ~/.nix-profile/Applications/* ~/Applications/
+    '';
+
+    programs.zsh.initExtra = ''
+      export NIX_PATH=$HOME/.nix-defexpr/channels:$NIX_PATH
+
+      if [[ "$TERM" == "alacritty" ]]; then
+        export TERM="xterm-256color"
+      fi
+    '';
+  };
+}