add install script

cli/install.sh

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+
+set -e
+
+echo "=== Nix Home Manager Setup ==="
+echo
+
+# Check if Nix is installed
+if ! command -v nix &>/dev/null; then
+  echo "Nix is not installed. Installing Nix..."
+  curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install --determinate
+
+  # Source nix profile
+  if [ -f /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]; then
+    . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
+  fi
+
+  echo "Nix installed successfully!"
+  echo
+else
+  echo "Nix is already installed."
+  echo
+fi
+
+# Detect architecture
+ARCH=$(uname -m)
+case "$ARCH" in
+x86_64)
+  ARCH_NAME="x86"
+  ;;
+aarch64 | arm64)
+  ARCH_NAME="arm"
+  ;;
+*)
+  echo "Unsupported architecture: $ARCH"
+  exit 1
+  ;;
+esac
+
+# Detect OS
+OS=$(uname -s)
+case "$OS" in
+Linux)
+  OS_NAME="linux"
+  ;;
+Darwin)
+  OS_NAME="darwin"
+  ;;
+*)
+  echo "Unsupported OS: $OS"
+  exit 1
+  ;;
+esac
+
+echo "Detected: $ARCH_NAME / $OS_NAME"
+echo
+
+# Prompt for user
+echo "Select user:"
+echo "1) root"
+read -p "Enter choice [1]: " USER_CHOICE
+USER_CHOICE=${USER_CHOICE:-1}
+
+case "$USER_CHOICE" in
+1)
+  USER_NAME="root"
+  ;;
+*)
+  echo "Invalid choice. Defaulting to root."
+  USER_NAME="root"
+  ;;
+esac
+
+# Build flake configuration name
+FLAKE_CONFIG="${USER_NAME}_${ARCH_NAME}_${OS_NAME}"
+
+echo
+echo "Configuration: $FLAKE_CONFIG"
+echo "Running Home Manager..."
+echo
+
+# Run home-manager
+nix run home-manager/master -- switch --flake "github:cupcakearmy/nix?dir=cli#${FLAKE_CONFIG}" -b backup
+
+echo
+echo "=== Setup complete! ==="