all: embed CSS and index HTML template using memfs

Previously, with direct embed, every time we change the CSS or index
template, we need to restart the "ciigo serve" command.

Using memfs make us easy to update and see the changes directly, without
restarting the server.

21 files changed, 1097 insertions, 633 deletions

diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 54e9365..3dc678f 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -1,10 +1,28 @@
-// SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info>
+
 =  Changelog for ciigo
-Shulhan <ms@kilabit.info>
-:toc:
 :sectanchors:
-:sectlinks:
+:toc:
+
+Legend,
+
+* 🪵: Breaking changes
+* 🌱: New feature
+* 🌼: Enhancement
+* 💧: Chores
+
+[#v0_16_0]
+==  ciigo v0.16.0 (2026-xx-xx)
+
+**🌱 all: embed CSS and index HTML template using memfs**
+
+Previously, with direct embed, every time we change the CSS or index
+template, we need to restart the "ciigo serve" command.
+
+Using memfs make us easy to update and see the changes directly, without
+restarting the server.
+
 
 [#v0_15_3]
 ==  ciigo v0.15.3 (2025-12-27)
diff --git a/Makefile b/Makefile
index bc043b3..dac9ae9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-## SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 ## SPDX-License-Identifier: GPL-3.0-or-later
+## SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 
 VERSION:=$(shell git describe --tags)
 ENV_GOBIN:=$(shell go env GOBIN)
@@ -16,7 +16,6 @@ lint:
 
 .PHONY: test
 test:
-	find ./testdata -name "*.html" -delete
 	CGO_ENABLED=1 go test -failfast -v -race -p=1 -coverprofile=cover.out ./...
 	go tool cover -html=cover.out -o cover.html
 
@@ -31,6 +30,7 @@ run-example:
 .PHONY: build
 build:
 	mkdir -p $(DIR_BUILD)
+	go run ./internal/cmd/staticfs/
 	CGO_ENABLED=0 go build $(LDFLAGS) -o $(DIR_BUILD) ./cmd/...
 
 .PHONY: serve-doc
diff --git a/README.md b/README.md
index 53ee00f..88289c0 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,9 @@ Features,
 
 - No themes, built your own template and style.
   Except for default
-  [HTML](https://git.sr.ht/~shulhan/ciigo/tree/main/item/template_index_html.go)
+  [HTML](https://git.sr.ht/~shulhan/ciigo/tree/main/item/_static/index.gohtml)
   template and embedded
-  [CSS](https://git.sr.ht/~shulhan/ciigo/tree/main/item/embedded_css.go),
+  [CSS](https://git.sr.ht/~shulhan/ciigo/tree/main/item/_static/ciigo.css),
   there is no other selection of theme that you can "pre-installed".
 
 - No layout, you are free to structure your sites, using normal directory
diff --git a/_static/ciigo.css b/_static/ciigo.css
new file mode 100644
index 0000000..27cb0fd
--- /dev/null
+++ b/_static/ciigo.css
@@ -0,0 +1,256 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info> */
+
+body {
+  margin: 0;
+  font-family: Go, Arial, sans-serif;
+  background-color: #fff;
+  line-height: 1.3;
+  text-align: center;
+  color: #222;
+}
+pre,
+code {
+  font-family: "Go Mono", Menlo, monospace;
+  font-size: 0.875rem;
+}
+pre {
+  line-height: 1.4;
+  overflow-x: auto;
+  background: #efefef;
+  padding: 0.625rem;
+  border-radius: 0.3125rem;
+}
+a {
+  color: #007d9c;
+}
+
+p,
+li {
+  max-width: 50rem;
+  word-wrap: break-word;
+}
+li p {
+  margin: 2px;
+}
+p,
+pre,
+ul,
+ol {
+  margin: 1.25rem;
+}
+
+h1,
+h2,
+h3,
+h4 {
+  margin: 1.25rem 0 1.25rem;
+  padding: 0;
+  color: #007d9c;
+  font-weight: bold;
+}
+h1 {
+  font-size: 1.75rem;
+  line-height: 1;
+}
+h1 .text-muted {
+  color: #777;
+}
+h2 {
+  clear: right;
+  font-size: 1.25rem;
+  background: #e0ebf5;
+  padding: 0.5rem;
+  line-height: 1.25;
+  font-weight: normal;
+  overflow: auto;
+  overflow-wrap: break-word;
+}
+h2 a {
+  font-weight: bold;
+}
+h3 {
+  font-size: 1.25rem;
+  line-height: 1.25;
+  overflow: auto;
+  overflow-wrap: break-word;
+}
+h3,
+h4 {
+  margin: 1.25rem 0.3125rem;
+}
+h4 {
+  font-size: 1rem;
+}
+
+h2 > span,
+h3 > span {
+  float: right;
+  margin: 0 25px 0 0;
+  font-weight: normal;
+  color: #5279c7;
+}
+
+dl {
+  margin: 1.25rem;
+}
+dt {
+  font-weight: bold;
+}
+dd {
+  margin: 0 0 0 1.25rem;
+}
+
+/*---- Admonition block */
+
+.admonitionblock > table {
+  border-collapse: separate;
+  border: 0;
+  background: none;
+  width: 100%;
+}
+.admonitionblock > table td.icon {
+  text-align: center;
+  width: 120px;
+}
+.admonitionblock > table td.icon img {
+  max-width: none;
+}
+.admonitionblock > table td.icon .title {
+  font-weight: bold;
+  font-family: "Go", "Open Sans", "DejaVu Sans", sans-serif;
+  text-transform: uppercase;
+}
+.admonitionblock > table td.content {
+  padding-left: 1.125em;
+  padding-right: 1.25em;
+  border-left: 1px solid #dddddf;
+  word-wrap: anywhere;
+}
+.admonitionblock > table td.content > :last-child > :last-child {
+  margin-bottom: 0;
+}
+.admonitionblock.note td.icon {
+  background-color: whitesmoke;
+}
+.admonitionblock.tip td.icon {
+  background-color: azure;
+}
+.admonitionblock.important td.icon {
+  background-color: honeydew;
+}
+.admonitionblock.caution td.icon {
+  background-color: lavenderbush;
+}
+.admonitionblock.warning td.icon {
+  background-color: mistyrose;
+}
+
+/* Topbar */
+
+.topbar {
+  background: #e0ebf5;
+  height: 4rem;
+  overflow: hidden;
+}
+
+.topbar .top-heading,
+.topbar .menu {
+  padding: 1.313rem 0;
+  font-size: 1.25rem;
+  font-weight: normal;
+}
+.topbar .top-heading {
+  float: left;
+}
+.topbar .top-heading a {
+  color: #222;
+  text-decoration: none;
+}
+
+.top-heading .header-logo {
+  height: 2rem;
+  width: 5.125rem;
+}
+
+.topbar .menu {
+  float: right;
+}
+.topbar .menu a {
+  margin: 0.625rem 0.125rem;
+  padding: 0.625rem;
+  color: white;
+  background: #007d9c;
+  border: 0.0625rem solid #007d9c;
+  border-radius: 5px;
+}
+.topbar .menu form {
+  display: inline-block;
+}
+
+/* Page */
+
+.page {
+  width: 100%;
+}
+
+.page > .container,
+.topbar > .container,
+.footer > .container {
+  margin-left: auto;
+  margin-right: auto;
+  padding: 0 1.25rem;
+  max-width: 59.38rem;
+}
+
+.page > .container {
+  text-align: left;
+}
+
+.container .meta {
+  font-style: italic;
+  margin: 1.25rem;
+}
+
+.footer {
+  text-align: center;
+  color: #666;
+  font-size: 0.875rem;
+  margin: 2.5rem 0;
+}
+
+.ulist li .paragraph {
+  margin-bottom: 1em;
+}
+
+.ulist li .paragraph {
+  margin-bottom: 1em;
+}
+
+/* TOC  */
+
+#toc a {
+  text-decoration: none;
+}
+#toctitle {
+  display: none;
+}
+#toc li {
+  list-style: none;
+}
+#toc ul .sectlevel1 {
+  padding: 0px;
+}
+#toc ul .sectlevel1,
+#toc ul .sectlevel2,
+#toc ul .sectlevel3,
+#toc ul .sectlevel4,
+#toc ul .sectlevel5 {
+  margin: 4px;
+}
+
+@media screen and (max-width: 992px) {
+  #toc {
+    all: unset;
+  }
+}
diff --git a/_static/index.gohtml b/_static/index.gohtml
new file mode 100644
index 0000000..decb66c
--- /dev/null
+++ b/_static/index.gohtml
@@ -0,0 +1,49 @@
+<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<!-- SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info> -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+{{- range $k, $v := .Metadata}}
+    <meta name="{{$k}}" content="{{$v}}">
+{{- end}}
+    <title>{{.Title}}</title>
+{{- if ne .EmbeddedCSS ""}}
+    <style>
+    {{.EmbeddedCSS}}
+    </style>
+{{- end}}
+{{- range .Styles}}
+    <link rel="stylesheet" href="{{.}}">
+{{- end}}
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">{{.Title}}</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
+{{.Body}}
+      </div>
+    </div>
+    <div class="footer">
+      Powered by <a
+        href="https://git.sr.ht/~shulhan/ciigo"
+      >
+        ciigo
+      </a>
+    </div>
+  </body>
+</html>
+<!-- vim: set filetype=angular: -->
diff --git a/ciigo.go b/ciigo.go
index 0977673..dfecf12 100644
--- a/ciigo.go
+++ b/ciigo.go
@@ -1,5 +1,5 @@
-// SPDX-FileCopyrightText: 2019 M. Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2019 M. Shulhan <ms@kilabit.info>
 
 // Package ciigo is a program to write static web server with embedded files
 // using the asciidoc markup languages.
@@ -28,7 +28,7 @@ const (
 )
 
 // Version define the latest tagged release of this module.
-var Version = `0.15.4`
+var Version = `0.16.0`
 
 // defExcludes define default files to be excludes on GoEmbed.
 var defExcludes = []string{
@@ -37,6 +37,11 @@ var defExcludes = []string{
 	`^\..*`,
 }
 
+// staticfs contains memory file system for "_static/" directory.
+// The value is initialized by running "go run ./internal/cmd/staticfs", that
+// generate "staticfs.go" file.
+var staticfs *memfs.MemFS
+
 // Ciigo provides customizable and reusable instance of ciigo for embedding,
 // converting, and/or serving HTTP server.
 // This type is introduced so one can add HTTP handler or endpoint along
diff --git a/ciigo_test.go b/ciigo_test.go
index 3b3f5de..94d64cb 100644
--- a/ciigo_test.go
+++ b/ciigo_test.go
@@ -1,12 +1,11 @@
-// SPDX-FileCopyrightText: 2022 M. Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2022 M. Shulhan <ms@kilabit.info>
 
 package ciigo
 
 import (
-	"html/template"
+	"log"
 	"os"
-	"path/filepath"
 	"regexp"
 	"sort"
 	"testing"
@@ -16,10 +15,13 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	var templateCSS = template.CSS(`body{}`)
-
-	_embeddedCSS = &templateCSS
-
+	if staticfs != nil {
+		css, err := staticfs.Get(`/ciigo.css`)
+		if err != nil {
+			log.Fatal(err)
+		}
+		css.Content = []byte(`body{}`)
+	}
 	os.Exit(m.Run())
 }
 
@@ -85,18 +87,6 @@ func TestGoEmbed(t *testing.T) {
 		opts EmbedOptions
 	}
 
-	var (
-		outDir = `testdata/goembed/out`
-
-		tdata *test.Data
-		err   error
-	)
-
-	tdata, err = test.LoadData(`testdata/goembed/GoEmbed_test.txt`)
-	if err != nil {
-		t.Fatal(err)
-	}
-
 	var listCase = []testCase{{
 		opts: EmbedOptions{
 			ConvertOptions: ConvertOptions{
@@ -106,33 +96,26 @@ func TestGoEmbed(t *testing.T) {
 				PackageName:    `mypackage`,
 				VarName:        `memfsIn`,
 				WithoutModTime: true,
+				GoFileName:     `testdata/goembed/default.go`,
+				CommentHeader: `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+`,
 			},
 		},
-		tag: `default`,
 	}}
-
-	var (
-		tcase testCase
-		fname string
-		fpath string
-		got   []byte
-	)
-	for _, tcase = range listCase {
-		// Set the output file name based on tag.
-		fname = tcase.tag + `.go`
-		fpath = filepath.Join(outDir, fname)
-		tcase.opts.EmbedOptions.GoFileName = filepath.Join(outDir, fname)
-
-		err = GoEmbed(tcase.opts)
+	for _, tcase := range listCase {
+		err := GoEmbed(tcase.opts)
 		if err != nil {
 			t.Fatal(err)
 		}
-
-		got, err = os.ReadFile(fpath)
+		got, err := os.ReadFile(tcase.opts.EmbedOptions.GoFileName)
 		if err != nil {
 			t.Fatal(err)
 		}
-
-		test.Assert(t, tcase.tag, string(tdata.Output[fname]), string(got))
+		exp, err := os.ReadFile(tcase.opts.EmbedOptions.GoFileName + `.exp`)
+		if err != nil {
+			t.Fatal(err)
+		}
+		test.Assert(t, tcase.tag, string(exp), string(got))
 	}
 }
diff --git a/converter.go b/converter.go
index 57695e7..ea63510 100644
--- a/converter.go
+++ b/converter.go
@@ -1,5 +1,5 @@
-// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 
 package ciigo
 
@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"git.sr.ht/~shulhan/asciidoctor-go"
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
 	"github.com/yuin/goldmark"
 	meta "github.com/yuin/goldmark-meta"
 	"github.com/yuin/goldmark/parser"
@@ -31,18 +32,20 @@ type Converter struct {
 // NewConverter create and initialize Converter with HTML template.
 // If htmlTemplate is empty, it will use the internal, predefined template.
 func NewConverter(htmlTemplate string) (converter *Converter, err error) {
-	var (
-		logp = `NewConverter`
-
-		tmplContent string
-	)
+	var logp = `NewConverter`
 
 	converter = &Converter{}
 
 	converter.tmpl = template.New(``)
 
+	var bhtml []byte
 	if len(htmlTemplate) == 0 {
-		tmplContent = templateIndexHTML
+		var node *memfs.Node
+		node, err = staticfs.Get(`/index.gohtml`)
+		if err != nil {
+			return nil, fmt.Errorf(`%s: %w`, logp, err)
+		}
+		bhtml = node.Content
 	} else {
 		converter.htmlTemplate = filepath.Clean(htmlTemplate)
 
@@ -55,15 +58,12 @@ func NewConverter(htmlTemplate string) (converter *Converter, err error) {
 
 		converter.htmlTemplateModtime = fi.ModTime()
 
-		var bhtml []byte
-
 		bhtml, err = os.ReadFile(converter.htmlTemplate)
 		if err != nil {
 			return nil, fmt.Errorf(`%s: %w`, logp, err)
 		}
-
-		tmplContent = string(bhtml)
 	}
+	var tmplContent = string(bhtml)
 
 	converter.tmpl, err = converter.tmpl.Parse(tmplContent)
 	if err != nil {
@@ -90,7 +90,7 @@ func (converter *Converter) convertFileMarkups(fileMarkups map[string]*FileMarku
 
 	for _, fmarkup = range fileMarkups {
 		if !isForce {
-			if !converter.shouldConvert(fmarkup) {
+			if !converter.shouldConvert(fmarkup, isForce) {
 				continue
 			}
 		}
@@ -105,7 +105,12 @@ func (converter *Converter) convertFileMarkups(fileMarkups map[string]*FileMarku
 }
 
 func (converter *Converter) htmlTemplateUseInternal() (err error) {
-	converter.tmpl, err = converter.tmpl.Parse(templateIndexHTML)
+	var node *memfs.Node
+	node, err = staticfs.Get(`/index.gohtml`)
+	if err != nil {
+		return err
+	}
+	converter.tmpl, err = converter.tmpl.Parse(string(node.Content))
 	if err != nil {
 		return err
 	}
@@ -217,9 +222,14 @@ func (converter *Converter) markdownToHTML(fmarkup *FileMarkup) (fhtml *fileHTML
 
 // shouldConvert will return true if the file markup fmarkup needs to be
 // converted to HTML.
-// It return true if the HTML file not exist or the template or markup file is
-// newer than the HTML file.
-func (converter *Converter) shouldConvert(fmarkup *FileMarkup) bool {
+// It return true if,
+//   - the HTML file not exist, or
+//   - the markup file is newer than the HTML file,
+//
+// In development mode, it will return true if,
+//   - the template file is newer than the HTML file, or
+//   - the CSS file is newer than the HTML file.
+func (converter *Converter) shouldConvert(fmarkup *FileMarkup, isDevelopment bool) bool {
 	var fi os.FileInfo
 	fi, _ = os.Stat(fmarkup.pathHTML)
 	if fi == nil {
@@ -252,5 +262,30 @@ func (converter *Converter) shouldConvert(fmarkup *FileMarkup) bool {
 		fmarkup.info = fi
 		return true
 	}
+
+	if !isDevelopment {
+		return false
+	}
+
+	// Check with staticfs for CSS and index HTML files.
+	if staticfs == nil {
+		return false
+	}
+	var node *memfs.Node
+	node, _ = staticfs.Get(`/index.gohtml`)
+	if node != nil && node.ModTime().After(htmlModtime) {
+		var newtmpl = template.New(``)
+		newtmpl, err = newtmpl.Parse(string(node.Content))
+		if err != nil {
+			return false
+		}
+		converter.tmpl = newtmpl
+		return true
+	}
+	node, _ = staticfs.Get(`/ciigo.css`)
+	if node != nil && node.ModTime().After(htmlModtime) {
+		return true
+	}
+
 	return false
 }
diff --git a/embedded_css.go b/embedded_css.go
deleted file mode 100644
index 4e10014..0000000
--- a/embedded_css.go
+++ /dev/null
@@ -1,270 +0,0 @@
-// SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info>
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-package ciigo
-
-import "html/template"
-
-var _embeddedCSS *template.CSS
-
-func embeddedCSS() *template.CSS {
-	if _embeddedCSS != nil {
-		return _embeddedCSS
-	}
-
-	var css = template.CSS(`
-body {
-	margin: 0;
-	font-family: 'Go', Arial, sans-serif;
-	background-color: #fff;
-	line-height: 1.3;
-	text-align: center;
-	color: #222;
-}
-pre,
-code {
-	font-family: 'Go Mono', Menlo, monospace;
-	font-size: 0.875rem;
-}
-pre {
-	line-height: 1.4;
-	overflow-x: auto;
-	background: #efefef;
-	padding: 0.625rem;
-	border-radius: 0.3125rem;
-}
-a {
-	color: #007d9c;
-	text-decoration: none;
-}
-a:hover {
-	text-decoration: underline;
-}
-
-p,
-li {
-	max-width: 50rem;
-	word-wrap: break-word;
-}
-li p {
-	margin: 2px;
-}
-p,
-pre,
-ul,
-ol {
-	margin: 1.25rem;
-}
-
-h1,
-h2,
-h3,
-h4 {
-	margin: 1.25rem 0 1.25rem;
-	padding: 0;
-	color: #007d9c;
-	font-weight: bold;
-}
-h1 {
-	font-size: 1.75rem;
-	line-height: 1;
-}
-h1 .text-muted {
-	color: #777;
-}
-h2 {
-	clear: right;
-	font-size: 1.25rem;
-	background: #e0ebf5;
-	padding: 0.5rem;
-	line-height: 1.25;
-	font-weight: normal;
-	overflow: auto;
-	overflow-wrap: break-word;
-}
-h2 a {
-	font-weight: bold;
-}
-h3 {
-	font-size: 1.25rem;
-	line-height: 1.25;
-	overflow: auto;
-	overflow-wrap: break-word;
-}
-h3,
-h4 {
-	margin: 1.25rem 0.3125rem;
-}
-h4 {
-	font-size: 1rem;
-}
-
-h2 > span,
-h3 > span {
-	float: right;
-	margin: 0 25px 0 0;
-	font-weight: normal;
-	color: #5279c7;
-}
-
-dl {
-	margin: 1.25rem;
-}
-dt {
-	font-weight: bold
-}
-dd {
-	margin: 0 0 0 1.25rem;
-}
-
-/**
- * Custom classes for pages
- */
-
-.admonitionblock > table {
-	border-collapse: separate;
-	border: 0;
-	background: none;
-	width: 100%;
-}
-.admonitionblock > table td.icon {
-	text-align: center;
-	width: 120px;
-}
-.admonitionblock > table td.icon img {
-	max-width: none;
-}
-.admonitionblock > table td.icon .title {
-	font-weight: bold;
-	font-family: "Go","Open Sans","DejaVu Sans",sans-serif;
-	text-transform: uppercase;
-}
-.admonitionblock > table td.content {
-	padding-left: 1.125em;
-	padding-right: 1.25em;
-	border-left: 1px solid #dddddf;
-	word-wrap: anywhere;
-}
-.admonitionblock > table td.content>:last-child>:last-child {
-	margin-bottom: 0;
-}
-.admonitionblock.note td.icon {
-	background-color: whitesmoke;
-}
-.admonitionblock.tip td.icon {
-	background-color: azure;
-}
-.admonitionblock.important td.icon {
-	background-color: honeydew;
-}
-.admonitionblock.caution td.icon {
-	background-color: lavenderbush;
-}
-.admonitionblock.warning td.icon {
-	background-color: mistyrose;
-}
-
-.topbar {
-	background: #e0ebf5;
-	height: 4rem;
-	overflow: hidden;
-}
-
-.topbar .top-heading,
-.topbar .menu {
-	padding: 1.313rem 0;
-	font-size: 1.25rem;
-	font-weight: normal;
-}
-.topbar .top-heading {
-	float: left;
-}
-.topbar .top-heading a {
-	color: #222;
-	text-decoration: none;
-}
-
-.top-heading .header-logo {
-	height: 2rem;
-	width: 5.125rem;
-}
-
-.topbar .menu {
-	float: right;
-}
-.topbar .menu a {
-	margin: 0.625rem 0.125rem;
-	padding: 0.625rem;
-	color: white;
-	background: #007d9c;
-	border: 0.0625rem solid #007d9c;
-	border-radius: 5px;
-}
-.topbar .menu form {
-	display: inline-block;
-}
-
-.page {
-	width: 100%;
-}
-
-.page > .container,
-.topbar > .container,
-.footer > .container {
-	margin-left: auto;
-	margin-right: auto;
-	padding: 0 1.25rem;
-	max-width: 59.38rem;
-}
-
-.page > .container {
-	text-align: left;
-}
-
-.container .meta {
-	font-style: italic;
-	margin: 1.25rem;
-}
-
-.footer {
-	text-align: center;
-	color: #666;
-	font-size: 0.875rem;
-	margin: 2.5rem 0;
-}
-
-.ulist li .paragraph {
-	margin-bottom: 1em;
-}
-
-.ulist li .paragraph {
-	margin-bottom: 1em;
-}
-
-/** Custom classes */
-#toctitle {
-	display: none;
-}
-#toc li {
-	list-style: none;
-}
-#toc ul .sectlevel1 {
-	padding: 0px;
-}
-#toc ul .sectlevel1,
-#toc ul .sectlevel2,
-#toc ul .sectlevel3,
-#toc ul .sectlevel4,
-#toc ul .sectlevel5 {
-	margin: 4px;
-}
-
-@media screen and (max-width: 992px) {
-	#toc {
-		all: unset;
-	}
-}
-`)
-	_embeddedCSS = &css
-	return _embeddedCSS
-}
diff --git a/filehtml.go b/filehtml.go
index f770ad8..6e5a080 100644
--- a/filehtml.go
+++ b/filehtml.go
@@ -1,11 +1,12 @@
-// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 
 package ciigo
 
 import (
 	"fmt"
 	"html/template"
+	"log"
 	"strings"
 
 	"git.sr.ht/~shulhan/asciidoctor-go"
@@ -18,7 +19,7 @@ const (
 // fileHTML represent an HTML metadata for header and its body.
 type fileHTML struct {
 	Title       string
-	EmbeddedCSS *template.CSS
+	EmbeddedCSS template.CSS
 	Styles      []string
 	Body        template.HTML
 	Metadata    map[string]string
@@ -38,6 +39,7 @@ func (fhtml *fileHTML) unpackAdocMetadata(doc *asciidoctor.Document) {
 		k string
 		v string
 	)
+	var withStylesheet bool
 
 	fhtml.Title = doc.Title.String()
 	fhtml.Styles = fhtml.Styles[:0]
@@ -47,6 +49,8 @@ func (fhtml *fileHTML) unpackAdocMetadata(doc *asciidoctor.Document) {
 		case asciidoctor.DocAttrStylesheet:
 			if len(v) != 0 {
 				fhtml.Styles = append(fhtml.Styles, v)
+			} else {
+				withStylesheet = true
 			}
 		case asciidoctor.DocAttrAuthorNames:
 			fhtml.Metadata[asciidoctor.DocAttrAuthor] = v
@@ -56,10 +60,7 @@ func (fhtml *fileHTML) unpackAdocMetadata(doc *asciidoctor.Document) {
 			fhtml.Metadata[k] = v
 		}
 	}
-
-	if len(fhtml.Styles) == 0 {
-		fhtml.EmbeddedCSS = embeddedCSS()
-	}
+	fhtml.initCSS(withStylesheet)
 }
 
 func (fhtml *fileHTML) unpackMarkdownMetadata(metadata map[string]any) {
@@ -69,6 +70,10 @@ func (fhtml *fileHTML) unpackMarkdownMetadata(metadata map[string]any) {
 		vstr string
 		ok   bool
 	)
+	// On markdown, the default stylesheet is true.
+	// User need to explicitly set `stylesheet: false`
+	// on metadata to turn it off.
+	var withStylesheet = true
 
 	fhtml.Styles = fhtml.Styles[:0]
 
@@ -81,7 +86,11 @@ func (fhtml *fileHTML) unpackMarkdownMetadata(metadata map[string]any) {
 		key = strings.ToLower(key)
 		switch key {
 		case asciidoctor.DocAttrStylesheet:
-			fhtml.Styles = append(fhtml.Styles, vstr)
+			if vstr == `false` {
+				withStylesheet = false
+			} else {
+				fhtml.Styles = append(fhtml.Styles, vstr)
+			}
 		case metadataTitle:
 			fhtml.Title = vstr
 		default:
@@ -90,8 +99,24 @@ func (fhtml *fileHTML) unpackMarkdownMetadata(metadata map[string]any) {
 			fhtml.Metadata[key] = vstr
 		}
 	}
+	fhtml.initCSS(withStylesheet)
+}
+
+func (fhtml *fileHTML) initCSS(withStylesheet bool) {
+	var logp = `initCSS`
 
-	if len(fhtml.Styles) == 0 {
-		fhtml.EmbeddedCSS = embeddedCSS()
+	if len(fhtml.Styles) != 0 {
+		// User defined their custom CSS throught ":stylesheet:"
+		return
+	}
+	if !withStylesheet {
+		// User unset the stylesheet throught ":stylesheet!".
+		return
+	}
+	css, err := staticfs.Get(`/ciigo.css`)
+	if err != nil {
+		log.Printf(`%s: %s`, logp, err)
+		return
 	}
+	fhtml.EmbeddedCSS = template.CSS(string(css.Content))
 }
diff --git a/internal/cmd/staticfs/main.go b/internal/cmd/staticfs/main.go
new file mode 100644
index 0000000..edcd080
--- /dev/null
+++ b/internal/cmd/staticfs/main.go
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+
+package main
+
+import (
+	"log"
+
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func main() {
+	var opts = &memfs.Options{
+		Embed: memfs.EmbedOptions{
+			PackageName: `ciigo`,
+			VarName:     `staticfs`,
+			GoFileName:  `staticfs.go`,
+			CommentHeader: `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+
+`,
+		},
+		Root: `./_static`,
+	}
+
+	staticfs, err := memfs.New(opts)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	err = staticfs.GoEmbed()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/server.go b/server.go
index 8a35fad..2fe26c9 100644
--- a/server.go
+++ b/server.go
@@ -1,5 +1,5 @@
-// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 // SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2019 Shulhan <ms@kilabit.info>
 
 package ciigo
 
@@ -44,6 +44,9 @@ func (ciigo *Ciigo) InitHTTPServer(opts ServeOptions) (err error) {
 	} else {
 		opts.Mfs.Opts.TryDirect = opts.IsDevelopment
 	}
+	if staticfs != nil {
+		staticfs.Opts.TryDirect = opts.IsDevelopment
+	}
 
 	ciigo.serveOpts = opts
 
@@ -209,7 +212,7 @@ func (ciigo *Ciigo) onGet(
 		return node, 0
 	}
 	var err error
-	if isNew || ciigo.converter.shouldConvert(fmarkup) {
+	if isNew || ciigo.converter.shouldConvert(fmarkup, ciigo.serveOpts.IsDevelopment) {
 		err = ciigo.converter.ToHTMLFile(fmarkup)
 		if err != nil {
 			log.Printf(`%s: failed to convert markup file %q: %s`,
diff --git a/staticfs.go b/staticfs.go
new file mode 100644
index 0000000..933670f
--- /dev/null
+++ b/staticfs.go
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package ciigo
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate____static() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "./_static",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate____static",
+	}
+	node.SetMode(0o20000000755)
+	node.SetModTimeUnix(1769165044, 480833479)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_staticfs_getNode(staticfs, "/ciigo.css", generate__static_ciigo_css))
+	node.AddChild(_staticfs_getNode(staticfs, "/index.gohtml", generate__static_index_gohtml))
+	return node
+}
+
+func generate__static_ciigo_css() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "_static/ciigo.css",
+		Path:        "/ciigo.css",
+		ContentType: "text/css; charset=utf-8",
+		GenFuncName: "generate__static_ciigo_css",
+		Content:     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+	}
+	node.SetMode(0o644)
+	node.SetModTimeUnix(1769157703, 702881257)
+	node.SetName("ciigo.css")
+	node.SetSize(3789)
+	return node
+}
+
+func generate__static_index_gohtml() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "_static/index.gohtml",
+		Path:        "/index.gohtml",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate__static_index_gohtml",
+		Content:     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\x2D\x2D\x3E\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetModTimeUnix(1769168980, 413409444)
+	node.SetName("index.gohtml")
+	node.SetSize(1252)
+	return node
+}
+
+// _staticfs_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _staticfs_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	staticfs = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "./_static",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+
+`,
+				PackageName:    "ciigo",
+				VarName:        "staticfs",
+				GoFileName:     "staticfs.go",
+				WithoutModTime: false,
+			},
+		},
+	}
+	staticfs.PathNodes.Set("/",
+		_staticfs_getNode(staticfs, "/", generate____static))
+	staticfs.PathNodes.Set("/ciigo.css",
+		_staticfs_getNode(staticfs, "/ciigo.css", generate__static_ciigo_css))
+	staticfs.PathNodes.Set("/index.gohtml",
+		_staticfs_getNode(staticfs, "/index.gohtml", generate__static_index_gohtml))
+
+	staticfs.Root = staticfs.PathNodes.Get("/")
+
+	var err = staticfs.Init()
+	if err != nil {
+		panic("staticfs: " + err.Error())
+	}
+}
diff --git a/template_index_html.go b/template_index_html.go
deleted file mode 100644
index 8b43083..0000000
--- a/template_index_html.go
+++ /dev/null
@@ -1,51 +0,0 @@
-// SPDX-FileCopyrightText: 2020 Shulhan <ms@kilabit.info>
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-package ciigo
-
-const templateIndexHTML = `<!DOCTYPE html>
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-{{- range $k, $v := .Metadata}}
-		<meta name="{{$k}}" content="{{$v}}">
-{{- end}}
-		<title>{{.Title}}</title>
-{{- if .EmbeddedCSS}}
-		<style>
-		{{.EmbeddedCSS}}
-		</style>
-{{- end}}
-{{- range .Styles}}
-		<link rel="stylesheet" href="{{.}}">
-{{- end}}
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">{{.Title}}</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
-{{.Body}}
-			</div>
-		</div>
-		<div class="footer">
-			Powered by <a
-				href="https://git.sr.ht/~shulhan/ciigo"
-			>
-				ciigo
-			</a>
-		</div>
-	</body>
-</html>`
diff --git a/testdata/goembed/GoEmbed_test.txt b/testdata/goembed/GoEmbed_test.txt
deleted file mode 100644
index d800731..0000000
--- a/testdata/goembed/GoEmbed_test.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-
-<<< default.go
-// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
-
-package mypackage
-
-import (
-	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
-)
-
-func generate_testdata_in() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in",
-		Path:        "/",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("/")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
-	return node
-}
-
-func generate_testdata_in_clu() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu",
-		Path:        "/clu",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in_clu",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("clu")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
-	return node
-}
-
-func generate_testdata_in_clu_de() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de",
-		Path:        "/clu/de",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in_clu_de",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("de")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
-	return node
-}
-
-func generate_testdata_in_clu_de_file_html() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de/file.html",
-		Path:        "/clu/de/file.html",
-		ContentType: "text/html; charset=utf-8",
-		GenFuncName: "generate_testdata_in_clu_de_file_html",
-		Content:     []byte("\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x09\x3C\x68\x65\x61\x64\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x09\x09\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x09\x09\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x09\x09\x62\x6F\x64\x79\x7B\x7D\x0A\x09\x09\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x09\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x09\x3C\x62\x6F\x64\x79\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x09\x09\x09\x09\x09\x09\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x09\x09\x09\x09\x09\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x09\x09\x09\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x09\x09\x09\x09\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x09\x09\x09\x3E\x0A\x09\x09\x09\x09\x63\x69\x69\x67\x6F\x0A\x09\x09\x09\x3C\x2F\x61\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E"),
-	}
-	node.SetMode(0o644)
-	node.SetName("file.html")
-	node.SetSize(902)
-	return node
-}
-
-func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de/markdown.html",
-		Path:        "/clu/de/markdown.html",
-		ContentType: "text/html; charset=utf-8",
-		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
-		Content:     []byte("\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x09\x3C\x68\x65\x61\x64\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x09\x09\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x09\x09\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x09\x09\x62\x6F\x64\x79\x7B\x7D\x0A\x09\x09\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x09\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x09\x3C\x62\x6F\x64\x79\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x09\x09\x09\x09\x09\x09\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x09\x09\x09\x09\x09\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x09\x09\x09\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x09\x09\x09\x09\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x09\x09\x09\x3E\x0A\x09\x09\x09\x09\x63\x69\x69\x67\x6F\x0A\x09\x09\x09\x3C\x2F\x61\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E"),
-	}
-	node.SetMode(0o644)
-	node.SetName("markdown.html")
-	node.SetSize(790)
-	return node
-}
-
-// _memfsIn_getNode is internal function to minimize duplicate node
-// created on Node.AddChild() and on generatedPathNode.Set().
-func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
-	node = mfs.PathNodes.Get(path)
-	if node != nil {
-		return node
-	}
-	return fn()
-}
-
-func init() {
-	memfsIn = &memfs.MemFS{
-		PathNodes: memfs.NewPathNode(),
-		Opts: &memfs.Options{
-			Root:        "testdata/in",
-			MaxFileSize: 5242880,
-			Includes:    []string{
-			},
-			Excludes: []string{
-				`.*\.adoc$`,
-				`.*\.md$`,
-				`^\..*`,
-			},
-			Embed: memfs.EmbedOptions{
-				CommentHeader:  ``,
-				PackageName:    "mypackage",
-				VarName:        "memfsIn",
-				GoFileName:     "testdata/goembed/out/default.go",
-				WithoutModTime: true,
-			},
-		},
-	}
-	memfsIn.PathNodes.Set("/",
-		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
-	memfsIn.PathNodes.Set("/clu",
-		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
-	memfsIn.PathNodes.Set("/clu/de",
-		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
-	memfsIn.PathNodes.Set("/clu/de/file.html",
-		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
-	memfsIn.PathNodes.Set("/clu/de/markdown.html",
-		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
-
-	memfsIn.Root = memfsIn.PathNodes.Get("/")
-
-	var err = memfsIn.Init()
-	if err != nil {
-		panic("memfsIn: " + err.Error())
-	}
-}
diff --git a/testdata/goembed/default.go b/testdata/goembed/default.go
new file mode 100644
index 0000000..6f42697
--- /dev/null
+++ b/testdata/goembed/default.go
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1002)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(890)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+`,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/goembed/default.go.exp b/testdata/goembed/default.go.exp
new file mode 100644
index 0000000..6f42697
--- /dev/null
+++ b/testdata/goembed/default.go.exp
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1002)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(890)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+`,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/goembed/out/.gitignore b/testdata/goembed/out/.gitignore
deleted file mode 100644
index d6b7ef3..0000000
--- a/testdata/goembed/out/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
diff --git a/testdata/goembed/out/default.go b/testdata/goembed/out/default.go
new file mode 100644
index 0000000..0c21721
--- /dev/null
+++ b/testdata/goembed/out/default.go
@@ -0,0 +1,129 @@
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1003)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(855)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  ``,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/out/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/watcher_test.txt b/testdata/watcher_test.txt
index df24c48..9c41cec 100644
--- a/testdata/watcher_test.txt
+++ b/testdata/watcher_test.txt
@@ -1,34 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2023 Shulhan <ms@kilabit.info>
+
 >>> create.adoc
 = watch create
 :generator!:
 
 <<< create.adoc.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<title>watch create</title>
-		<style>
-		body{}
-		</style>
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">watch create</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <title>watch create</title>
+    <style>
+    body{}
+    </style>
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">watch create</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <div id="header">
 <h1>watch create</h1>
 </div>
@@ -45,31 +50,33 @@
 Hello, body.
 
 <<< update.adoc.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<meta name="keywords" content="ciigo,asciidoc">
-		<title>watch updated</title>
-		<link rel="stylesheet" href="/path/to/style.css">
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">watch updated</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <meta name="keywords" content="ciigo,asciidoc">
+    <title>watch updated</title>
+    <link rel="stylesheet" href="/path/to/style.css">
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">watch updated</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <div id="header">
 <h1>watch updated</h1>
 </div>
@@ -87,37 +94,39 @@ Title: a title
 # watch create
 
 <<< create.md.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<title>a title</title>
-		<style>
-		body{}
-		</style>
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">a title</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <title>a title</title>
+    <style>
+    body{}
+    </style>
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">a title</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <h1>watch create</h1>
 
-			</div>
-		</div>
-		<div class="footer">
+      </div>
+    </div>
+    <div class="footer">
 
 >>> update.md
 ---
@@ -128,33 +137,35 @@ keywords: ciigo,markdown
 # watch updated
 
 <<< update.md.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<meta name="keywords" content="ciigo,markdown">
-		<title>A new title</title>
-		<link rel="stylesheet" href="/path/to/style.css">
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">A new title</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <meta name="keywords" content="ciigo,markdown">
+    <title>A new title</title>
+    <link rel="stylesheet" href="/path/to/style.css">
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">A new title</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <h1>watch updated</h1>
 
-			</div>
-		</div>
-		<div class="footer">
+      </div>
+    </div>
+    <div class="footer">
diff --git a/watcher_test.go b/watcher_test.go
index 1b9f3fa..64bb08c 100644
--- a/watcher_test.go
+++ b/watcher_test.go
@@ -105,7 +105,7 @@ func testAdocCreate(t *testing.T, testWatcher *watcher, tdata *test.Data, pathFi
 		t.Fatal(err)
 	}
 
-	gotBody = removeFooter(gotBody, 15)
+	gotBody = removeFooter(gotBody, 17)
 	expBody = tdata.Output[`create.adoc.html`]
 
 	test.Assert(t, `HTML body`, string(expBody), string(gotBody))
@@ -135,7 +135,7 @@ func testAdocUpdate(t *testing.T, testWatcher *watcher, tdata *test.Data, pathFi
 		t.Fatal(err)
 	}
 
-	gotBody = removeFooter(gotBody, 15)
+	gotBody = removeFooter(gotBody, 17)
 	expBody = tdata.Output[`update.adoc.html`]
 
 	test.Assert(t, `HTML body`, string(expBody), string(gotBody))
@@ -186,7 +186,7 @@ func testMarkdownCreate(t *testing.T, testWatcher *watcher, tdata *test.Data, pa
 	if err != nil {
 		t.Fatal(err)
 	}
-	gotBody = removeFooter(gotBody, 8)
+	gotBody = removeFooter(gotBody, 10)
 
 	expBody = string(tdata.Output[`create.md.html`])
 	test.Assert(t, `HTML body`, expBody, string(gotBody))
@@ -216,7 +216,7 @@ func testMarkdownUpdate(t *testing.T, testWatcher *watcher, tdata *test.Data, pa
 	if err != nil {
 		t.Fatal(err)
 	}
-	gotBody = removeFooter(gotBody, 8)
+	gotBody = removeFooter(gotBody, 10)
 
 	expBody = string(tdata.Output[`update.md.html`])
 	test.Assert(t, `HTML body`, expBody, string(gotBody))