diff --git a/dev-python/uv-build/Manifest b/dev-python/uv-build/Manifest
index fc268a0cccf9b..e75ed3a8e5dd3 100644
--- a/dev-python/uv-build/Manifest
+++ b/dev-python/uv-build/Manifest
@@ -3,6 +3,7 @@ DIST uv_build-0.12.10.tar.gz 423598 BLAKE2B 363ee130a5da490859d0a2f0122be340f369
 DIST uv_build-0.12.12.tar.gz 424423 BLAKE2B c7ed255923f884467ecaf8d70be044bea5c39db61611d320105d2a5c4c8e885a674ed22fa285ed398abbcaa229d9cca339f31f7d2e022adf099b5e0fe175d4c8 SHA512 38b91b29112af0e9677ae666125356b1735d8608ecdbcfae1d87ceff2b8cb8f61d5ecf917292a620d0e9c6f6d3ac121994fba2a0d7d076e18cd52e813fc1e2b2
 DIST uv_build-0.12.13.tar.gz 424846 BLAKE2B 9fee11946f1067045349d28ba05b6dae8aaea430fdbbe19970c286d20f758d03343ed9a6afd2166f85ecfee3009fb66c7429f6ee8c58a6453e0203f2a3fca38a SHA512 77bf75208e6932b791b42d2a9dc199901a981d3ab8881e58cd5604e3207aef020538ff120770e0eb31646c1c0b7e972c816932c9d3bb0defc6b9583763607584
 DIST uv_build-0.12.14.tar.gz 427528 BLAKE2B 81c3c2310058e279debf4c3964ac02fbccb0deec757fbb0824cf0e9a7e6edc0a49b269b382ee8ec47290bf37194c33c806bbb6778ba52d6915bbff3109007a9d SHA512 d8ff710bab00c287e3935e1411c9b9898a9db2107ac03285155bbcdda58e2d94d40556ace50986777b90832a03ea896149846b51e57691f9f243203c32ec44f7
+DIST uv_build-0.12.15.tar.gz 427499 BLAKE2B 30c3f72775de6f609ada7eca182fbd46da150624945983bd64691c59afb86e5e6c2bbeda1ea7f0bb5d12e8c9a332e741a9e2443ac6edba09da90352c00680d6a SHA512 8ad1d541ee1e287683d3013efb453e0ce1867e1404b369c36ac8f46b7300dd201516ade51930aad08b38ef1d42dff362baa13f58281d454344fde22f00443919
 DIST uv_build-0.12.3.tar.gz 414444 BLAKE2B f226c1c2bf0b2af538f66095e20c02ad1933afdee62a07eff5f1135692bab47e286f67e7a8f5882e98c61fbb6bf831a85dd56a2d5af2bee6d62d8857a59e56bc SHA512 90d9af3e1a1ff1d7dda21fa38c0ac2d94536e73697ddabb408fb38e2d381498b2401007af0ab31c39cbf3b632aeca2991b3a66d7108e1c5eb7294b3fba8fe107
 DIST uv_build-0.12.7.tar.gz 418759 BLAKE2B 94aa33b2644f849a686d80d7f7d365ca8433615d93f27209fca5b21747363cd349d11e887d090420102f06a49977ce963b8f19c24a4280bf82a09943ba08885b SHA512 135f845b3ee6d1925f740917f83f94ec1a7e95aab5ed2db0aa70516c712ab0a143a0e427d3c172fac0bb1fabaa9103718bb2a26c31c9a287e3af65ac0175a245
 DIST uv_build-0.12.9.tar.gz 423446 BLAKE2B 8f32f7527633f5853a11a0f798a2aa075f9e96c2b34144f986a639dbd042bac7c5e33853287ef43273352a3ee84da852062c42daead1f188281295b635694177 SHA512 3aa6ea5b4e60218e7cbc3c5ed8ff7fbeeace36eb0d2c75627fb7a0ce7c060e8d6405378e9713f7164319cce55dc96b1a335ccb3032cfc7e9e60e99862295e79e
diff --git a/dev-python/uv-build/uv-build-0.12.15.ebuild b/dev-python/uv-build/uv-build-0.12.15.ebuild
new file mode 100644
index 0000000000000..1625e3730c9a6
--- /dev/null
+++ b/dev-python/uv-build/uv-build-0.12.15.ebuild
@@ -0,0 +1,100 @@
+# Copyright 2025-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maturin compiles uv-build executable for every impl, we do not want
+# that, so we use another backend.  And since we use another backend,
+# why not dogfood it in the first place?
+DISTUTILS_USE_PEP517=standalone
+PYTHON_COMPAT=( python3_{12..15} )
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="PEP517 uv build backend"
+HOMEPAGE="
+	https://github.com/astral-sh/uv/
+	https://pypi.org/project/uv-build/
+"
+
+LICENSE="|| ( Apache-2.0 MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~s390 ~x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	>=dev-python/uv-${PV}
+"
+BDEPEND="
+	test? (
+		app-arch/unzip
+		dev-python/build[${PYTHON_USEDEP}]
+	)
+"
+
+src_prepare() {
+	distutils-r1_src_prepare
+
+	# use the executable from dev-python/uv instead of building
+	# a largely overlapping uv-build executable (at least for now)
+	sed -i -e '/USE_UV_EXECUTABLE/s:False:True:' python/uv_build/__init__.py || die
+
+	# replace the build-system section
+	sed -i -e '/\[build-system\]/,$d' pyproject.toml || die
+	cat >> pyproject.toml <<-EOF || die
+		[build-system]
+		requires = ["uv_build<9999"]
+		build-backend = "uv_build"
+		backend-path = ["src"]
+	EOF
+
+	# rename to make uv-build find it
+	mv python src || die
+}
+
+python_test() {
+	"${EPYTHON}" -m build -n || die "Self-build failed with ${EPYTHON}"
+
+	local zip_result=$(
+		unzip -t "dist/uv_build-${PV}-py3-none-any.whl" || die
+	)
+	local zip_expected="\
+Archive:  dist/uv_build-${PV}-py3-none-any.whl
+    testing: uv_build/                OK
+    testing: uv_build/__init__.py     OK
+    testing: uv_build/__main__.py     OK
+    testing: uv_build/py.typed        OK
+    testing: uv_build-${PV}.dist-info/   OK
+    testing: uv_build-${PV}.dist-info/WHEEL   OK
+    testing: uv_build-${PV}.dist-info/METADATA   OK
+    testing: uv_build-${PV}.dist-info/RECORD   OK
+No errors detected in compressed data of dist/uv_build-${PV}-py3-none-any.whl.\
+"
+	if [[ ${zip_result} != ${zip_expected} ]]; then
+		eerror ".zip result:\n${zip_result}"
+		eerror ".zip expected:\n${zip_expected}"
+		die ".whl result mismatch"
+	fi
+
+	local tar_result=$(
+		tar -tf "dist/uv_build-${PV}.tar.gz" || die
+	)
+	local tar_expected="\
+uv_build-${PV}/PKG-INFO
+uv_build-${PV}/pyproject.toml
+uv_build-${PV}/pyproject.toml.orig
+uv_build-${PV}/
+uv_build-${PV}/README.md
+uv_build-${PV}/src
+uv_build-${PV}/src/uv_build
+uv_build-${PV}/src/uv_build/__init__.py
+uv_build-${PV}/src/uv_build/__main__.py
+uv_build-${PV}/src/uv_build/py.typed\
+"
+	if [[ ${tar_result} != ${tar_expected} ]]; then
+		eerror ".tar.gz result:\n${tar_result}"
+		eerror ".tar.gz expected:\n${tar_expected}"
+		die ".tar.gz result mismatch"
+	fi
+}