diff --git a/dev-python/uv-build/Manifest b/dev-python/uv-build/Manifest
index ed3da94cd4379..a94be95c78a09 100644
--- a/dev-python/uv-build/Manifest
+++ b/dev-python/uv-build/Manifest
@@ -2,3 +2,4 @@ DIST uv_build-0.7.19.tar.gz 311467 BLAKE2B a7e85c3bbaee786ed9729b1331e5506eeb95d
 DIST uv_build-0.7.22.tar.gz 314318 BLAKE2B e8118eda79bd6bea375a2b19d87a0d9c2da8e1fe1fb24668ccfe79364b92a01aedcb1e73bc625c9e1d010e7ed4742c3a4add827dc497ee18312664c4343b67be SHA512 185d6b5a9e0440a1354cd9ce638522e9b2a27cc075a5022d95c63fd96b861bf50615156d7f64144b7fb657e2ddb3fe1b0fd8fd38fd6c0adabffacbdc43d6f292
 DIST uv_build-0.8.2.tar.gz 317577 BLAKE2B 0bf4d94fcb8052fa5fc71970cdda92438491bc4f3a0723b1f4565eb7f416058d253b14542adb4ea1883e56cb3c1fcf899840bb8406e133749ad894a181d5c8d7 SHA512 14272a8bf350542d5aaeaaf32542bf70b45724bda3a57eb4d701c8f3c0648244c683f3ea6d011920c5c02d1880e92787ce0758055b78eab2b3e61b20e03eea9c
 DIST uv_build-0.8.4.tar.gz 318914 BLAKE2B 303fb5d95d7e62269eba53ca41d7e3ae32df84e49bcf3d13cca58e21a73696964f06484d0aabc874bb66e3da5a91efae16d620732fd026ba36a43fc24fcfbe9a SHA512 875de875a2c1f73d4d4d53f1844ce11dbfde69dca552da3fabb071689309d01f4759cdb3ca71142dfdf791be5e1ada0de9a0326ad2107acd93483fa25eb518b4
+DIST uv_build-0.8.5.tar.gz 318967 BLAKE2B a09040001b1c777022fce38a5d28a584bad3dfa60627107f6054d779012b06a611eb11e903beef9112f636de4b238a1b29f5aa38ec477af6f91e1e957f5584cc SHA512 3bc3de1d240d78d5034c97801bcb6696d3ade9fb1a3cfe838a2ed66e7225ea72fa61ff82fdee66b213c7e5f63b0ee6ec2e04820102f3b50c3292107a643a3749
diff --git a/dev-python/uv-build/uv-build-0.8.5.ebuild b/dev-python/uv-build/uv-build-0.8.5.ebuild
new file mode 100644
index 0000000000000..7b6a5ee54e1b4
--- /dev/null
+++ b/dev-python/uv-build/uv-build-0.8.5.ebuild
@@ -0,0 +1,99 @@
+# Copyright 2025 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=( pypy3_11 python3_{11..14} )
+
+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"
+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-${PV}/
+uv_build-${PV}/README.md
+uv_build-${PV}/pyproject.toml
+uv_build-${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
+}