diff --git a/sh/doc.awk b/sh/doc.awk
deleted file mode 100644
index f36b7b6..0000000
--- a/sh/doc.awk
+++ /dev/null
@@ -1,83 +0,0 @@
-function append(line) {
-    if (doc) {
-        doc = doc "\n"
-    }
-    doc = doc line
-}
-
-function output(name) {
-    print name
-    print doc
-    exit
-}
-
-function reset() {
-    doc = ""
-}
-
-BEGIN {
-    RE_ANY = "(.*)"
-    RE_NAME = "([_A-Za-z][_0-9A-Za-z]*)"
-    RE_SPACE = "[[:space:]]"
-    RE_SPACES = RE_SPACE "*"
-
-    RE_BEGIN = "^"
-    RE_END = RE_SPACES "$"
-    RE_FUNC = RE_SPACES "\\(" RE_SPACES "\\)" RE_SPACES "{"
-
-    RE_ALIAS = RE_BEGIN "#\\(" RE_SPACES RE_NAME RE_END
-    RE_DOC = RE_BEGIN "#" RE_SPACE RE_ANY RE_END
-    RE_FUNCTION = RE_BEGIN RE_NAME RE_FUNC RE_END
-    RE_MODULE = RE_BEGIN "#." RE_SPACES RE_NAME RE_END
-    RE_SET = RE_BEGIN RE_NAME "=.*" RE_END
-    RE_SHEBANG = RE_BEGIN "#!" RE_SPACES RE_ANY RE_END
-
-    alias = 0
-    reset()
-    module = 0
-}
-
-{
-    # doc
-    if (match($0, RE_SHEBANG, m)) {
-        append("shebang: " m[1])
-    } else if (match($0, RE_DOC, m)) {
-        append(m[1])
-    } else if (match($0, RE_ALIAS, m)) {
-        append("alias: " m[1])
-        if (m[1] == target) {
-            alias = 1
-        }
-    # not doc
-    } else if (match($0, RE_MODULE, m)) {
-        reset()
-        if (m[1] == target) {
-            module = 1
-        }
-    } else if (match($0, RE_SET, m)) {
-        if (m[1] == target) {
-            printf "set: "
-            output(m[1])
-        } else {
-            reset()
-        }
-    } else if (match($0, RE_FUNCTION, m)) {
-        if (alias) {
-            print "alias: " target
-            printf "function: "
-            output(m[1])
-        } else if (m[1] == target) {
-            printf "function: "
-            output(target)
-        } else {
-            reset()
-        }
-    } else {
-        if (module) {
-            printf "module: "
-            output(target)
-        } else {
-            reset()
-        }
-    }
-}
diff --git a/sh/main.sh b/sh/main.sh
index fb323d8..343cbe3 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -1,8 +1,9 @@
 #! /usr/bin/env sh
+# main module
+
 # ╭──────╮
 # │ main │
 # ╰──────╯
-# main module
 
 # ╭──────┬───────────╮
 # │ main │ constants │
@@ -10,10 +11,8 @@
 
 # name of the entrypoint file
 RWX_MAIN_NAME="main.sh"
-# name of the project itself
 RWX_SELF_NAME="rwx"
 
-# prefix for command functions
 RWX_SELF_COMMAND="_${RWX_SELF_NAME}_cmd_"
 
 # ╭──────┬───────────╮
@@ -65,7 +64,6 @@ rwx_main() {
 # ╰──────┴───────╯
 
 # cache source code of a module
-# inside a global code variable
 rwx_cache() {
 	local root="${1}"
 	local module="${2}"
@@ -195,31 +193,6 @@ rwx_parse_functions() {
 		sed --silent "s|${RWX_REGEX_TARGET_FUNCTION}|\\1|p"
 }
 
-# ╭──────┬──────╮
-# │ main │ test │
-# ╰──────┴──────╯
-
-rwx_test() {
-    local item
-    # TODO CODE
-    # TODO CONSTANTS
-    # TODO functions
-    # TODO variables
-    set \
-        "main" \
-        "self" \
-        \
-        "RWX_MAIN_NAME" \
-        \
-        "rwx_cache" \
-        \
-        "gsc"
-    for item in "${@}"; do
-        echo
-        rwx_doc "${item}"
-    done
-}
-
 # ╭──────┬─────╮
 # │ main │ run │
 # ╰──────┴─────╯
diff --git a/sh/self.sh b/sh/self.sh
index 169921a..c181112 100644
--- a/sh/self.sh
+++ b/sh/self.sh
@@ -1,17 +1,7 @@
-# self
-# module
+# self module
 
 # meta doc
 rwx_doc() {
-	local name="${1}"
-	[ -n "${name}" ] || return
-	printf "%s" "${RWX_CODE}" |
-		awk \
-			-f "${RWX_ROOT_SYSTEM}/doc.awk" \
-			-v target="${name}"
-}
-
-rwx_doc_old() {
 	local name="${1}"
 	[ -n "${name}" ] || return
 	local constant doc func line module