diff --git a/dev-ml/core_unix/Manifest b/dev-ml/core_unix/Manifest
new file mode 100644
index 0000000000..a9bdefb0ff
--- /dev/null
+++ b/dev-ml/core_unix/Manifest
@@ -0,0 +1 @@
+DIST core_unix-0.14.0.tar.gz 6694 BLAKE2B 6ee13ca55de516962590066b81d5f8bfc058a05d18b26a014decaec92ace7ba699c12a203c0ca4b1381d69f218f3c428eed08df00e25e5b1615e748b30c4d841 SHA512 d020db759cde35c0e9d9919dee2c0ea5bb5b7a5ee75515be922d816f28eb9f74dba37e6e424a636e362eab5120b2c1e672f4e5ba798f2dac7974c0e135f80faf
diff --git a/dev-ml/core_unix/core_unix-0.14.0.ebuild b/dev-ml/core_unix/core_unix-0.14.0.ebuild
new file mode 100644
index 0000000000..b1c2cdfd22
--- /dev/null
+++ b/dev-ml/core_unix/core_unix-0.14.0.ebuild
@@ -0,0 +1,33 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit dune
+
+DESCRIPTION="Unix-specific extensions to some of the modules defined in [core] and [core_kernel]"
+HOMEPAGE="https://github.com/janestreet/core_unix"
+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/core_kernel
+	dev-ml/expect_test_helpers_core
+	dev-ml/core
+	dev-ml/ppx_jane
+	dev-ml/jane-street-headers
+	dev-ml/jst-config
+	dev-ml/ocaml_intrinsics
+	dev-ml/sexplib
+	dev-ml/timezone
+	dev-ml/base-threads
+	dev-ml/spawn
+"
+DEPEND="
+	${RDEPEND}
+	sys-kernel/linux-headers
+"
diff --git a/dev-ml/core_unix/metadata.xml b/dev-ml/core_unix/metadata.xml
new file mode 100644
index 0000000000..8551609050
--- /dev/null
+++ b/dev-ml/core_unix/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>lssndrbarbieri@gmail.com</email>
+		<name>Alessandro Barbieri</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">janestreet/core_unix</remote-id>
+	</upstream>
+</pkgmetadata>