diff --git a/README.md b/README.md
index b78c46eaf..6bf4dffad 100644
--- a/README.md
+++ b/README.md
@@ -606,11 +606,11 @@ A daily compile test is run at Github with Python 3.9 to catch general faults. E
 
 ## Licenses
 This repository itself is released under GPL-3 (like most Gentoo repositories), all work on the depending components under the licenses they came from. Perhaps you came here because I filed an issue at your component about a bad or missing license. It is easy to [assign a license](https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/adding-a-license-to-a-repository). During cleanups and license investigations I have been asked often which license to choose. I am not a lawyer, but I can offer the following table, counted over this repository, perhaps this helps your decision. If a package has more than one license listed, all of them are counted.
-There are 2378 Ebuilds in total, 2360 of them have in total 2401 (43 different) licenses assigned.
+There are 2380 Ebuilds in total, 2362 of them have in total 2403 (43 different) licenses assigned.
 
 |License| Ebuilds using it|
 |-------|-----|
-|MIT|1356|
+|MIT|1358|
 |Apache-2.0|545|
 |GPL-3|150|
 |BSD|125|
diff --git a/dev-python/reactivex/Manifest b/dev-python/reactivex/Manifest
new file mode 100644
index 000000000..7fee06cd9
--- /dev/null
+++ b/dev-python/reactivex/Manifest
@@ -0,0 +1,3 @@
+DIST reactivex-4.0.4.tar.gz 119177 BLAKE2B 89a956a779e5fb8458b6304681d89a4e993ea53898ef88cdd7c92f11c2d740118b82c9817ba9e6d0eeaf3cef6e84cf973ea868d15349f4957a82655a18be37c9 SHA512 ea5259feecb6a5aa64a15dabc06ad4c2dfb724ebfb0e66a8988d3944b0089b13a772916274311959925c98b5669838ed2a12b49cc01aacb391598d63a84aacd6
+EBUILD reactivex-4.0.4.ebuild 563 BLAKE2B 4e499a32781cb2df77d29d724f965ce17a523a7f3d41a7ab128e7358029b4ff923e884d62317ef9b7054ab9bec4b880c8c55e9a6cc3bce97ff4715db38951021 SHA512 ef73d96f4d1a6d0fa868087049763f0d5db35bc2918745a6402763d04bfc25805c79e1ca02514e91bd21b153be7d1c05e1964d0add976a67fffc189453261228
+MISC metadata.xml 504 BLAKE2B 3a5e953d3ec16ec67416e6921095f8682e6182c9f815c590c1d99527f743136039a222cb2f0c94eb324f397f7057d6e8edb8383cfa7d0e92934d25b14bf93b4c SHA512 b9e4077dc901e0f332eab47163306762d4e8c4783968babbe9514b506cd4dbd6691ec4bf7b03e53068c3a0799f83157f8b086586e9e0799f8ae3233623c30e46
diff --git a/dev-python/reactivex/metadata.xml b/dev-python/reactivex/metadata.xml
new file mode 100644
index 000000000..921193b08
--- /dev/null
+++ b/dev-python/reactivex/metadata.xml
@@ -0,0 +1,16 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="project">
+    <email>b@edevau.net</email>
+    <name>Andreas Billmeier</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="pypi">reactivex</remote-id>
+    <remote-id type="github">ReactiveX/RxPY</remote-id>
+    <maintainer status="unknown">
+      <email>dag@brattli.net</email>
+      <name>Dag Brattli</name>
+    </maintainer>
+  </upstream>
+</pkgmetadata>
diff --git a/dev-python/reactivex/reactivex-4.0.4.ebuild b/dev-python/reactivex/reactivex-4.0.4.ebuild
new file mode 100644
index 000000000..7a1105825
--- /dev/null
+++ b/dev-python/reactivex/reactivex-4.0.4.ebuild
@@ -0,0 +1,23 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( pypy3_11 python3_{11..14} )
+DISTUTILS_USE_PEP517=poetry
+inherit distutils-r1 pypi
+
+DESCRIPTION="ReactiveX (Rx) for Python"
+HOMEPAGE="http://reactivex.io https://github.com/ReactiveX/RxPY https://pypi.org/project/reactivex/"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="amd64 arm arm64 x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+DOCS="README.rst"
+
+RDEPEND=">=dev-python/typing-extensions-4.1.1[${PYTHON_USEDEP}]"
+
+distutils_enable_tests pytest