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/install

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+if [[ -f /etc/nixos/.system-installed ]]; then
+    echo "=== System config already installed, skipping"
+else
+    echo "==> Installing system config"
+
+    [[ -d /etc/nixos ]] && sudo mv /etc/nixos{,.bak}
+    sudo mkdir -p /etc/nixos
+    sudo cp /etc/nixos.bak/hardware-configuration.nix /etc/nixos
+
+    sudo cp ./system/configuration.nix /etc/nixos/
+    sudo ln -s $(pwd)/system/{machines,modules,pkgs} /etc/nixos
+    sudo touch /etc/nixos/.system-installed
+
+    echo "==> System config installed, your old configuration is at /etc/nixos.bak"
+fi
+echo
+
+if [[ -f ~/.config/nixpkgs/system-installed ]]; then
+    echo "=== home-manager config already installed, skipping"
+else
+    echo "==> Installing home-manager config"
+    nix-channel --add https://github.com/rycee/home-manager/archive/master.tar.gz home-manager
+    nix-channel --update
+    # nix-shell '<home-manager>' -A install
+
+    [[ -d ~/.config/nixpkgs ]] && mv ~/.config/{nixpkgs,nixpkgs.bak}
+    mkdir -p ~/.config/nixpkgs
+    ln -s $(pwd)/home/* ~/.config/nixpkgs
+
+    echo "==> home-manager config installed"
+fi