diff --git a/dev-ml/sexp_pretty/Manifest b/dev-ml/sexp_pretty/Manifest
new file mode 100644
index 0000000000..2a8745be3a
--- /dev/null
+++ b/dev-ml/sexp_pretty/Manifest
@@ -0,0 +1 @@
+DIST sexp_pretty-0.14.0.tar.gz 19700 BLAKE2B 21672e09c994f24d0080a6bfc8fbfc74bf43efe2131338b600ad802ec61581f401c984397036103bc1848544078a1af37b7f197b94c6d36c57c8d55422cf7dfa SHA512 7b32a7df5e66db77aef5e00279cfbb49dec185de604c31baa1ff1f4991bd930aca39fce94fcb737414279458ff942df968382090f79a011e9366e676eced9a74
diff --git a/dev-ml/sexp_pretty/metadata.xml b/dev-ml/sexp_pretty/metadata.xml
new file mode 100644
index 0000000000..418a0ad297
--- /dev/null
+++ b/dev-ml/sexp_pretty/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">janestreet/sexp_pretty</remote-id>
+	</upstream>
+</pkgmetadata>
diff --git a/dev-ml/sexp_pretty/sexp_pretty-0.14.0-r1.ebuild b/dev-ml/sexp_pretty/sexp_pretty-0.14.0-r1.ebuild
new file mode 100644
index 0000000000..d16dc48ab0
--- /dev/null
+++ b/dev-ml/sexp_pretty/sexp_pretty-0.14.0-r1.ebuild
@@ -0,0 +1,23 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit dune
+
+DESCRIPTION="S-expression pretty-printer"
+HOMEPAGE="https://github.com/janestreet/sexp_pretty"
+SRC_URI="https://github.com/janestreet/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="ocamlopt"
+
+RDEPEND="
+	dev-ml/base
+	dev-ml/ppx_base
+	dev-ml/sexplib
+	dev-ml/re
+"
+DEPEND="${RDEPEND}"