diff --git a/src/calibre/gui2/tweak_book/tts.py b/src/calibre/gui2/tweak_book/tts.py
new file mode 100644
index 0000000000..a171dea8d0
--- /dev/null
+++ b/src/calibre/gui2/tweak_book/tts.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+# License: GPLv3 Copyright: 2024, Kovid Goyal <kovid at kovidgoyal.net>
+
+import sys
+
+from qt.core import QHBoxLayout, QStackedLayout, QTextBrowser, QVBoxLayout, QWidget
+
+from calibre.gui2.tweak_book.widgets import Dialog
+
+
+class ConfigWidget(QWidget):
+
+    def __init__(self, parent=None):
+        from calibre.gui2.tts.config import EmbeddingConfig
+        super().__init__(parent)
+        self.h = h = QHBoxLayout(self)
+        h.setContentsMargins(0, 0, 0, 0)
+        self.conf = c = EmbeddingConfig(self)
+        h.addWidget(c)
+        self.help = q = QTextBrowser(self)
+        h.addWidget(q)
+
+
+class TTSEmbed(Dialog):
+
+    def __init__(self, container, parent=None):
+        self.container = container
+        super().__init__(_('Add Text-to-speech narration'), 'tts-overlay-dialog', parent=parent)
+
+    def setup_ui(self):
+        self.v = v = QVBoxLayout(self)
+        self.stack = s = QStackedLayout(self)
+        v.addLayout(s)
+        v.addWidget(self.bb)
+
+
+def develop():
+    from calibre.ebooks.oeb.polish.container import get_container
+    from calibre.gui2 import Application
+    path = sys.argv[-1]
+    container = get_container(path, tweak_mode=True)
+    app = Application([])
+    d = TTSEmbed(container)
+    d.exec()
+    del d
+    del app
+
+
+if __name__ == '__main__':
+    develop()