feat: dir, install changes

script/install.d/04-nerdfont.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+# -----------------------------------------------------------------------------
+# Description:
+#   (macOS only) Install nerdfonts.
+#
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    fonts_list=(
+        font-fira-mono-nerd-font
+        font-fira-code-nerd-font
+    )
+
+    if ! brew list "${fonts_list[@]}" &> /dev/null; then
+        brew tap homebrew/cask-fonts
+        for font in "${fonts_list[@]}"; do
+            brew install --cask "$font"
+        done
+    fi
+
+    unset fonts_list
+fi