diff --git a/sh/main.sh b/sh/main.sh
index 89c915a..e40ea7a 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -3,6 +3,15 @@
 # │ main │
 # ╰──────╯
 # main module
+# * builtins
+#   * echo
+#   * printf
+#   * read
+# * binaries
+#   * awk
+#   * cat
+#   * find
+#   * sed
 
 # ╭──────┬───────────╮
 # │ main │ constants │