diff --git a/dev-ml/ocaml-hex/Manifest b/dev-ml/ocaml-hex/Manifest
new file mode 100644
index 0000000000..78cd449184
--- /dev/null
+++ b/dev-ml/ocaml-hex/Manifest
@@ -0,0 +1 @@
+DIST ocaml-hex-1.5.0.gh.tar.gz 6913 BLAKE2B e0d4dde127cc152a2ab20d33f1e877897b3bf3a920d94264814aaa60562b160f7a3b59f97343b32b14eec08a7588fe7d88472faa424c19e5f916af86e147e0ab SHA512 ea0e0e87023de0d53b68fa67d2674cf02d6c8e373188fc8515a579314fc1914ae1fd9c4eeae9ed8e62818385000a97e3951a44234c62fc06bb6fe5f745b8bd1d
diff --git a/dev-ml/ocaml-hex/metadata.xml b/dev-ml/ocaml-hex/metadata.xml
new file mode 100644
index 0000000000..c9d7b6955c
--- /dev/null
+++ b/dev-ml/ocaml-hex/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>t@laumann.xyz</email>
+    <name>Thomas Bracht Laumann Jespersen</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">mirage/ocaml-hex</remote-id>
+  </upstream>
+</pkgmetadata>
diff --git a/dev-ml/ocaml-hex/ocaml-hex-1.5.0.ebuild b/dev-ml/ocaml-hex/ocaml-hex-1.5.0.ebuild
new file mode 100644
index 0000000000..a7759dfcf8
--- /dev/null
+++ b/dev-ml/ocaml-hex/ocaml-hex-1.5.0.ebuild
@@ -0,0 +1,24 @@
+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DUNE_PKG_NAME="hex"
+inherit dune
+
+DESCRIPTION="Hexadecimal converter"
+HOMEPAGE="https://github.com/mirage/ocaml-hex"
+SRC_URI="https://github.com/mirage/${PN}/archive/v${PV}.tar.gz -> ${P}.gh.tar.gz"
+
+LICENSE="ISC"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="+ocamlopt"
+
+DOCS=( README.md CHANGES.md )
+
+DEPEND="
+	>=dev-lang/ocaml-4.08.0[ocamlopt?]
+	>=dev-ml/cstruct-1.7.0
+"
+RDEPEND="${DEPEND}"