feat(nixos-anywhere): add deploy script and docs in README.md

configs/shell/scripts/deploy.sh

@@ -0,0 +1,43 @@
+# Set default values
+flake=".#default" # Default flake attribute if none is provided
+target_host="nixos@<hostname>" # Default target host
+
+# Process command-line arguments
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --flake)
+      flake="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    --target-host)
+      target_host="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    *)
+      echo "Unknown option: $1" >&2
+      exit 1
+      ;;
+  esac
+done
+
+# Prepare temporary directory and copy necessary files
+root=$(mktemp -d)
+sudo mkdir -p ${root}/home/rafiq/.config/sops/age
+sudo cp ~/.config/sops/age/keys.txt "${root}/home/rafiq/.config/sops/age/keys.txt"
+sudo mkdir -p ${root}/home/rafiq/.ssh
+sudo cp ~/.ssh/id_ed25519 "${root}/home/rafiq/.ssh/id_ed25519"
+sudo cp ~/.ssh/id_ed25519.pub "${root}/home/rafiq/.ssh/id_ed25519.pub"
+
+# Run nixos-anywhere
+sudo nix run github:nix-community/nixos-anywhere -- \
+  --flake "${flake}" \
+  --target-host "${target_host}" \
+  --copy-host-keys \
+  --extra-files "${root}" \
+  --chown /home/rafiq/.config 1000:100 \
+  --chown /home/rafiq/.ssh 1000:100
+
+# Clean up the temporary directory
+sudo rm -rf "$root"