diff --git a/sh/core/code.sh b/sh/core/code.sh
index a4a5eb0..3d65f5c 100644
--- a/sh/core/code.sh
+++ b/sh/core/code.sh
@@ -12,6 +12,8 @@ RWX_MAIN_PATH="${RWX_ROOT_SYSTEM}/${RWX_MAIN_NAME}.${RWX_MAIN_EXTENSION}"
 # user root directory of the project
 RWX_SELF_USER="${HOME}/${RWX_SELF_NAME}"
 
+# cache of all sourced code modules
+_rwx_code=""
 # cache for the parsing awk script
 _rwx_code_awk="$(cat "${RWX_ROOT_SYSTEM}/core/code.awk")"
 # cache for code aliases
@@ -223,8 +225,34 @@ rwx_code_parse() {
 # ╰──────┴──────╯
 
 rwx_code_main() {
-	# source user root
-	rwx_main_source "${RWX_SELF_USER}"
+	local modules_main="${1}"
+	local module modules_user
+	# find & source modules
+	modules_user="$(rwx_main_find "${RWX_SELF_USER}")"
+	while IFS= read -r module; do
+		# shellcheck disable=SC1090
+		. "${RWX_SELF_USER}/${module}.${RWX_MAIN_EXTENSION}"
+	done <<EOF
+${modules_user}
+EOF
+	# cache main modules
+	while IFS= read -r module; do
+		# cache main module
+		_rwx_code="${_rwx_code}#. ${module}
+$(cat "${RWX_ROOT_SYSTEM}/${module}.${RWX_MAIN_EXTENSION}")
+"
+	done <<EOF
+${modules_main}
+EOF
+	# cache modules
+	while IFS= read -r module; do
+		# cache module
+		_rwx_code="${_rwx_code}#. ${module}
+$(cat "${RWX_SELF_USER}/${module}.${RWX_MAIN_EXTENSION}")
+"
+	done <<EOF
+${modules_user}
+EOF
 	# load code cache
 	rwx_code_load
 	# set command
diff --git a/sh/main.sh b/sh/main.sh
index bb5b3bb..6a3a3d3 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -20,9 +20,6 @@ RWX_SELF_NAME="rwx"
 # │ main │ variables │
 # ╰──────┴───────────╯
 
-# cache of all sourced code modules
-_rwx_code=""
-
 # TODO variablize
 # system root directory of the project
 RWX_ROOT_SYSTEM="/usr/local/lib/${RWX_SELF_NAME}"
@@ -72,52 +69,6 @@ _rwx_main_log() {
 	fi
 }
 
-# ╭──────┬────────╮
-# │ main │ source │
-# ╰──────┴────────╯
-
-# source code from root path
-rwx_main_source() {
-	local root="${1}"
-	local main="${2}"
-	[ -d "${root}" ] ||
-		return 1
-	local module modules
-	# cache main
-	[ -n "${main}" ] && rwx_main_cache "${root}" "${main}"
-	modules="$(rwx_main_find "${root}")"
-	while IFS= read -r module; do
-		if [ "${module}" != "${main}" ]; then
-			# shellcheck disable=SC1090
-			. "${root}/${module}.${RWX_MAIN_EXTENSION}"
-			# cache code
-			rwx_main_cache "${root}" "${module}"
-		fi
-	done <<EOF
-${modules}
-EOF
-}
-
-# ╭──────┬───────╮
-# │ main │ cache │
-# ╰──────┴───────╯
-
-# cache source code of a module
-# inside a global code variable
-#| cat
-rwx_main_cache() {
-	local root="${1}"
-	local module="${2}"
-	local path="${root}/${module}.${RWX_MAIN_EXTENSION}"
-	local text
-	text="$(cat "${path}")"
-	# all source code
-	_rwx_code="${_rwx_code}\
-#. ${module}
-${text}
-"
-}
-
 # ╭──────┬──────╮
 # │ main │ main │
 # ╰──────┴──────╯
@@ -125,13 +76,19 @@ ${text}
 # run initial steps
 #< core/code
 rwx_main_main() {
-	# source system root
-	if ! rwx_main_source "${RWX_ROOT_SYSTEM}" "${RWX_MAIN_NAME}"; then
-		_rwx_main_log "Not a directory: ${RWX_ROOT_SYSTEM}"
-		return 1
-	fi
+	local module modules
+	# find & source modules
+	modules="$(rwx_main_find "${RWX_ROOT_SYSTEM}")"
+	while IFS= read -r module; do
+		if [ "${module}" != "${RWX_MAIN_NAME}" ]; then
+			# shellcheck disable=SC1090
+			. "${RWX_ROOT_SYSTEM}/${module}.${RWX_MAIN_EXTENSION}"
+		fi
+	done <<EOF
+${modules}
+EOF
 	# run code main function
-	rwx_code_main "${@}"
+	rwx_code_main "${modules}" "${@}"
 }
 
 # run main function