diff --git a/dev-ml/tyxml/Manifest b/dev-ml/tyxml/Manifest
new file mode 100644
index 0000000000..f430375f8f
--- /dev/null
+++ b/dev-ml/tyxml/Manifest
@@ -0,0 +1 @@
+DIST tyxml-4.5.0.tar.gz 125979 BLAKE2B c15b5f5926f4eafcf3f8eaa85b7fa5d6453d7c5d9a331c6a88e2da94a4cab24ab9b53e82020ec2f7dc3e63eb06ceb24a14039736e373fbefa7addbccf8198e50 SHA512 44591c4c32cb7e9425c1ca257624f12d6301709d33522672e13d28a6397da7e6b4eac0780e384763f26d5bc0e935a042d8224c22ea29a16d924f03a3c5b5a714
diff --git a/dev-ml/tyxml/metadata.xml b/dev-ml/tyxml/metadata.xml
new file mode 100644
index 0000000000..15bf217281
--- /dev/null
+++ b/dev-ml/tyxml/metadata.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <description>co-maintainers welcome</description>
+    <email>lssndrbarbieri@gmail.com</email>
+    <name>Alessandro Barbieri</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">ocsigen/tyxml</remote-id>
+  </upstream>
+</pkgmetadata>
diff --git a/dev-ml/tyxml/tyxml-4.5.0.ebuild b/dev-ml/tyxml/tyxml-4.5.0.ebuild
new file mode 100644
index 0000000000..ca759f68d4
--- /dev/null
+++ b/dev-ml/tyxml/tyxml-4.5.0.ebuild
@@ -0,0 +1,26 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit dune
+
+DESCRIPTION="A libary to build xml trees typechecked by OCaml"
+HOMEPAGE="
+	https://ocsigen.org/tyxml/
+	https://github.com/ocsigen/tyxml
+"
+SRC_URI="https://github.com/ocsigen/tyxml/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="LGPL-2.1-with-linking-exception"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="ocamlopt"
+
+DEPEND="
+	dev-ml/markup
+	dev-ml/re
+	dev-ml/ppxlib
+	dev-ml/uutf
+"
+RDEPEND="${DEPEND}"