diff --git a/sdk_container/src/third_party/portage-stable/dev-build/meson/Manifest b/sdk_container/src/third_party/portage-stable/dev-build/meson/Manifest
index c843458821..d63fcd838b 100644
--- a/sdk_container/src/third_party/portage-stable/dev-build/meson/Manifest
+++ b/sdk_container/src/third_party/portage-stable/dev-build/meson/Manifest
@@ -12,16 +12,13 @@ DIST meson-1.6.1.tar.gz 2276144 BLAKE2B 7ccdb3bf3f701fc787fabf91413db8301a8658b8
 DIST meson-1.6.1.tar.gz.asc 833 BLAKE2B 6666eca8e5506b8692fc29ba66dc3ee9d725a7d720a7b43db720098f7e00671e71993586606c187d8314e3919474f5733d64a8d052be6552cbcf013a872905ab SHA512 543cf396de0a58998c3587aa05580fa9a56734db40b74fc5fbb22cd56124531804a5360d6b9acb9baa71753ac04c343364da4d78a0d366d8e8bc760030ebf8d3
 DIST meson-1.7.2.tar.gz 5009274 BLAKE2B f5a19d7c0dfa35efda5bdef972fa6362a64fee2c74be0c09dee6d52c30a8b0169dbe7fab3199add306c778f6a57196251b44ec27ff6b5e038e12c11b27513a54 SHA512 c3c71ae0e0c31d8d72e200bb5fd5e6584ce41aabe1e85575d50371f82ed02c6e346da3b0b4a2786199b9410daaa1622807a88bfc8ac991cf134bad4a53b3c863
 DIST meson-1.7.2.tar.gz.asc 996 BLAKE2B 9a34bb86f15eb92d4eb972835e8e18e175c869a6ba9d88310ca6058654200b227c7a4a945eee220784f584737a3b74ffcd06e2b60a3e502e49af5da69eb1e5bf SHA512 a1e0461a28dfc8ba74ffd919511584148094c2bc809c3d380749856cbdaa33473c1a0c1ec92928020f50e116803fc03deb37b3ee2aca7e56287b155a5ccc36ac
-DIST meson-1.8.3.tar.gz 2335924 BLAKE2B 3c440854bd91c757d4370b498f0e6e903df4589f4958e05fa16ae70e6efc01d2e96f101612146556b81cc3db370255f4319bd5d49d8e46210df282cc447ec12e SHA512 effd6f556152e508185a5bc59131b3a31696577298aec5f3d3ab68153ade9e98242171d6b72c00f8c32fc3492aba3487252d77a94a96b5a92e89724de045d49b
-DIST meson-1.8.3.tar.gz.asc 833 BLAKE2B 25f00f76819c74e64b3750ddd4507fdd8a0be764db54ea48ba49f0985bfbf04d294e5eff1ee799ec082cba24ed59b21a8fd75f81dee9d824e5f8cd9c775b0dcd SHA512 9c28747ff4756422dae4eb4a86de24fe230e6676660aa9cfb72d29311012106a9edbcfff3559682917a7e0ed8c80af8b8ec37807d3f7e0f4005eed5793367307
-DIST meson-1.8.4.tar.gz 2336961 BLAKE2B fd574be17f1dde56fed13e18151cddc3265b4175b46bb45961f46a586e0e3b619ce5179df78505ac46cc6af7d8cbd4fc73f6434b8581b3e3518d791f6bb6e75c SHA512 3325c3968649847621e4d39309222741e5158b204ff6cc88410f364634c9978b5fb4c02c73968b3b7df46c89371a5b27aec9a997917dae757415bd77f5db39f2
-DIST meson-1.8.4.tar.gz.asc 833 BLAKE2B 33fea09355be6f3df1c9f82daf2c92cbebd79846f82039e697f390db4811ade49edaeb942a4d1da8cb95238cff400e4ef1a76e141189acf10bc5da70e3fb3c44 SHA512 e0e6474a020e320d940d8de1843b491d1906c38bca304168324cae333c5635c70b210ef14e1d31ada2a31e7d3b8e5ae4a8563373230f40c52c2cac017359fd29
-DIST meson-1.9.0.tar.gz 2366082 BLAKE2B 54cef087a9629087e67a0d75422d08370e86273a202d9e054d160a4ae52b7b1ad612a2a2c8e72a00a8e29bd5857375bedca5935cd74a560950c6b45a48d69f19 SHA512 62e633e07e7e8be1bf4f62f9e5a2df9535750fc0047ee5c21b17bc851d190cc0cf8e6696614692091013dc72e68aa23d2c1fe04500e146f56876591250474d04
-DIST meson-1.9.0.tar.gz.asc 833 BLAKE2B 3054c5f24b264fd5471b4094e6a37cfa4cad3567b8eda69d4b7a6c0e5486c95199b683c1b5b9ed1be44fd0eacaca1afb9dd95fd363a23753fdd0f71f194e9793 SHA512 7f2ce856cf16004ebdef1ce294e7efc44f644691cac2f704625b4a56b270d4b2db54564bef9f4c90360c1ec738e54b948aba336e1feb70dca2daf0e500f2b627
+DIST meson-1.8.5.tar.gz 5056050 BLAKE2B 4f67b140329d3b64dcc213e0c4e65d105dd98e0348d4c2bda622cfb617a6bd5434da13a0bc845cdb40ce376a30752d3183007f9b364cf54c699bc89cdecad195 SHA512 d0333380c4c9d8724212a100b7a4faa323c076ead9eed78e712974d68449271c6fd020e07ac8373fcdb18a0738a3ff5709dcacf8ff1aedf3a8ebd6edbb6b4c04
+DIST meson-1.8.5.tar.gz.asc 996 BLAKE2B ff8c1ffe8fd8488a00ffcc9d5d0c19dcadfca5216ad8c70daf44526f949c835d775dc558932237a891345e9d900385081ee1d7c76b41237aac423bf72b8f5f7b SHA512 da9ff37ac207dbfbe8bca511e6b8ee233aaaf89653bf00c43d2fed2ecaf0b59b0b11bd4efafa4f87a6f70c8ad11f23834d313c7d1ae07a77baa0d9cfbbe535aa
+DIST meson-1.9.1.tar.gz 5083044 BLAKE2B a4d1894636ee61fa0101153f07d53717d34ba9de620b69becf669e06dc09a85874b4c5d619a509347c97e4112502a431affecccc5faf96464b072b5563247b9e SHA512 e5a167ff035f1494d6b1df7d3bf6feb37aa6421222fd27bfbebb36de4c7c3083e327679b82b7d9d3d4a2cc4dc2a3babb7cbf03358e4a2784d47eb34502014a1c
+DIST meson-1.9.1.tar.gz.asc 992 BLAKE2B 5271c87e19da0f0776c01b1f9f71eef0540e532a9397dbbff3c09c9b3b7698b8ea650f46c8b7edab8e5fd72c1fce4445d556c310770cc23c8275ebf8f06241f6 SHA512 a621781134e4793ea557fd1487895b65a38de23b676a7b6d8d7ac779abcdf768bdf09f933ea7ecedee0cd78fa62ab6319a9108cdf39ffa2e5695cddf183fb903
 DIST meson-reference-1.4.2.3 339324 BLAKE2B 1a4fbd8c27a8cfba773777eabd2ebaa0f76ec0c61dcfe1c7b4483737b348ff9528d68f26e68d7d40b2e1875611eed5b9a31c1cf55fed8eabb42fc1e31d9ef14b SHA512 8b8ec43e812599203ec44c08805eb6818485805c45b9c69802261eaa35efc97846a96f6472c6b1ef5f6c703e7153fd957df7b805f173ca3400a2030dfbe002ca
 DIST meson-reference-1.5.2.3 341110 BLAKE2B 0d588b796f7f2da2dcb0e7822acde6a9a461930da4bfead3cf9148fa0fac18cd0ccbc6e891f555c973836f1c16b4eae299908a838a0b6843293de8815d30fc23 SHA512 64715ce2113e362e7d67179fe13566bc8f84ce7f4e6d795b836f42455a871173fee06e3e969e2996022d7e6c9b4b5379587a4c0c3d97b4bca527fb8902d3547f
 DIST meson-reference-1.6.1.3 343730 BLAKE2B 55df822192781a70e4bc44cfe14fb363e3f820406260ca9705d7fdb5fad1bf0117e3f1325d37e58e23477bc075ab6bd84056409355ec694f72eeaa5bf982ecc7 SHA512 553cdcd86a7a600cda05ac970cc285c4c50017d1e7d2925645d7f19a62b34c2f079673cafecf4111aa102afbe9d8e4d56f166d1d9940b740eeec0bb99d6cbc0d
 DIST meson-reference-1.7.2.3 344764 BLAKE2B 82de9a7a01c2f1b45a2b3432deb4713af3cfd3b2dc9af8802488b7d1b86dde9b6ac81f90b144006a79e90b313e1d4d23f9cc90e17255ce9573e5487d3e20c286 SHA512 d482a3b3bed671705d6316e106984ad2c2169fe890349437e512455705ee8dddb31a29d31f44402a4c7c5bd2f78595b75bfc5ad34d8c0337b66f40837b08ee56
-DIST meson-reference-1.8.3.3 345855 BLAKE2B c8825ba7b72b36866ebfa8cdf63362f2d38673315378ea213c438057f5dafa36b9e729e8c415a29715c1da4fe72733a4a6a2cdbee4b7df57e5eb97f50152491b SHA512 3085c10cfc08ce4f0edad7129ce4d9a0bf75c6522309e344ba14e27c34d46c3da25ebb46260de28caef4a6c8134857d63297ded26f1296639a8a097e62a1801c
-DIST meson-reference-1.8.4.3 345964 BLAKE2B a2840cfabe319cb244ad46bb3b72b7e19bcaf3bfbd0f804c3982a191f795284cc4d35ee00266bf069dd95c0fa99fdb565343007aed75a7a0859ad85528422667 SHA512 95385faa364103c9f38b497f6e021d81c0e08048863a046b5c9030d11f7554f8237d405fe04d2145513e3685a13c71b167f29a8727d0f8cb0ca591076e0b39b9
-DIST meson-reference-1.9.0.3 347286 BLAKE2B 1fb96870791e7bdaefed5c9a0e807d412e922e965690ef2f8820075a27c2d20d7b8057f0f3b7b009dcc5f20cb7ba7ee778d2df6e4eac583cda58625d58fe9266 SHA512 6e0e127c988b6269c13ba901ce7bbedab135d81a0b4bcd8528a01371d9f74964381c446c2fa35876953ad0199866a0016b1e39f315b054b91499fc00597a9c5d
+DIST meson-reference-1.8.5.3 345964 BLAKE2B df514085c03c6cd84e31b1ea1aea18d34fdd5aebbcfa3ca96b31ca7dc97c89649f0b26e927288ed71beb3500a46d53cf6c42b740d9a8b3a22d75258cdf99c3c6 SHA512 ef8c4479b13bea4510dd57b0e18a4b86255853885763ae0a2ee19b3e0e846c6619bb6a646d656266650a58bc2afc7b1fa91b05bfc6f8fec9dcd73a7627a369fe
+DIST meson-reference-1.9.1.3 347286 BLAKE2B cae2e9a97bcb7fc6894723156280306ea0fb35d9cbe68d31785ac0678b17b8a4bdfdf2362834b9daf3c01e0ff8dd67c0f1d384595ef4e93858064bdad3e46840 SHA512 d79a772f4fdd55309acda104087d0bbdc707e8fd2816b516daf0b8d1c034892ddb0bec9a383d6f65184e9509a358e2a8b392a484b65ab9d26c0e68a02fd6db95
diff --git a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.3.ebuild b/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.5.ebuild
similarity index 96%
rename from sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.3.ebuild
rename to sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.5.ebuild
index 699967ac5f..3b3b8ff738 100644
--- a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.3.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.5.ebuild
@@ -32,8 +32,9 @@ else
 	# Releases may be signed by those listed in Releasing.md. Jussi
 	# remains the default release manager.
 	# https://github.com/mesonbuild/meson/commit/c2d795735fa1c46c54d6aed4d4a30f36a1f853cb
-	BDEPEND="verify-sig? ( sec-keys/openpgp-keys-jpakkane )"
-	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/jpakkane.gpg
+	BDEPEND="verify-sig? ( >=sec-keys/openpgp-keys-eschwartz-20250723-r1 sec-keys/openpgp-keys-jpakkane )"
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/eschwartz.asc
+	#VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/jpakkane.gpg
 
 	if [[ ${PV} != *_rc* ]] ; then
 		KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
diff --git a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.0.ebuild b/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.0.ebuild
deleted file mode 100644
index 699967ac5f..0000000000
--- a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.0.ebuild
+++ /dev/null
@@ -1,231 +0,0 @@
-# Copyright 2016-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{11..14} pypy3_11 )
-DISTUTILS_USE_PEP517=setuptools
-
-inherit shell-completion edo distutils-r1 flag-o-matic toolchain-funcs
-
-if [[ ${PV} = *9999* ]]; then
-	EGIT_REPO_URI="https://github.com/mesonbuild/meson"
-	inherit ninja-utils git-r3
-
-	BDEPEND="
-		${NINJA_DEPEND}
-		$(python_gen_any_dep 'dev-python/pyyaml[${PYTHON_USEDEP}]')
-	"
-
-else
-	inherit verify-sig
-
-	MY_PV=${PV/_/}
-	MY_P=${P/_/}
-	S=${WORKDIR}/${MY_P}
-
-	SRC_URI="
-		https://github.com/mesonbuild/meson/releases/download/${MY_PV}/${MY_P}.tar.gz
-		verify-sig? ( https://github.com/mesonbuild/meson/releases/download/${MY_PV}/${MY_P}.tar.gz.asc )
-		https://github.com/mesonbuild/meson/releases/download/${MY_PV}/meson-reference.3 -> meson-reference-${MY_PV}.3
-	"
-	# Releases may be signed by those listed in Releasing.md. Jussi
-	# remains the default release manager.
-	# https://github.com/mesonbuild/meson/commit/c2d795735fa1c46c54d6aed4d4a30f36a1f853cb
-	BDEPEND="verify-sig? ( sec-keys/openpgp-keys-jpakkane )"
-	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/jpakkane.gpg
-
-	if [[ ${PV} != *_rc* ]] ; then
-		KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
-	fi
-fi
-
-DESCRIPTION="Open source build system"
-HOMEPAGE="https://mesonbuild.com/"
-
-LICENSE="Apache-2.0"
-SLOT="0"
-IUSE="test test-full"
-RESTRICT="!test? ( test )"
-REQUIRED_USE="test-full? ( test )"
-
-DEPEND="
-	test? (
-		dev-libs/glib:2
-		dev-libs/gobject-introspection
-		app-alternatives/ninja
-		dev-vcs/git
-		sys-libs/zlib[static-libs(+)]
-		virtual/pkgconfig
-		dev-build/cmake
-	)
-	test-full? (
-		|| ( dev-lang/rust dev-lang/rust-bin )
-		dev-lang/nasm
-		>=dev-lang/pypy-3
-		dev-lang/vala
-		dev-python/cython
-		virtual/fortran
-		virtual/jdk
-
-		app-text/doxygen
-		dev-cpp/gtest
-		dev-libs/protobuf
-		dev-util/bindgen
-		dev-util/gtk-doc
-		dev-util/itstool
-		llvm-core/llvm
-		media-libs/libsdl2
-		media-libs/libwmf
-		net-libs/libpcap
-		sci-libs/hdf5[fortran]
-		sci-libs/netcdf
-		sys-cluster/openmpi[fortran]
-		sys-devel/bison
-		sys-devel/flex
-
-		dev-qt/linguist-tools:5
-		dev-qt/qtwidgets:5
-		dev-qt/qtbase:6[gui,widgets]
-		dev-qt/qtdeclarative:6
-		dev-qt/qttools:6
-		dev-util/gdbus-codegen
-		x11-libs/gtk+:3
-
-		dev-libs/wayland
-		dev-util/wayland-scanner
-	)
-"
-RDEPEND="
-	!<dev-build/muon-0.2.0-r2[man(-)]
-	virtual/pkgconfig
-"
-
-PATCHES=(
-	"${FILESDIR}"/${PN}-1.2.1-python-path.patch
-)
-
-src_unpack() {
-	if [[ ${PV} = *9999* ]]; then
-		git-r3_src_unpack
-	else
-		default
-		use verify-sig && verify-sig_verify_detached "${DISTDIR}"/${MY_P}.tar.gz{,.asc}
-	fi
-}
-
-python_prepare_all() {
-	local disable_unittests=(
-		# ASAN and sandbox both want control over LD_PRELOAD
-		# https://bugs.gentoo.org/673016
-		-e 's/test_generate_gir_with_address_sanitizer/_&/'
-		-e 's/test_env_cflags_ldflags/_&/'
-		-e 's/test_c_link_args_and_env/_&/'
-
-		# ASAN is unsupported on some targets
-		# https://bugs.gentoo.org/692822
-		-e 's/test_pch_with_address_sanitizer/_&/'
-
-		# clippy-driver fails, but only when run via portage.
-		#
-		#   error[E0463]: can't find crate for `std`
-		#   error: requires `sized` lang_item
-		-e 's/test_rust_clippy/_&/'
-	)
-
-	sed -i "${disable_unittests[@]}" unittests/*.py || die
-
-	# Broken due to python2 script created by python_wrapper_setup
-	rm -r "test cases/frameworks/1 boost" || die
-	# nvcc breaks on essentially any LDFLAGS
-	# https://bugs.gentoo.org/936757
-	# https://github.com/mesonbuild/meson/issues/11234
-	rm -r "test cases/cuda"/* || die
-
-	distutils-r1_python_prepare_all
-}
-
-python_check_deps() {
-	if [[ ${PV} = *9999* ]]; then
-		python_has_version "dev-python/pyyaml[${PYTHON_USEDEP}]"
-	fi
-}
-
-python_configure_all() {
-	if [[ ${PV} = *9999* ]]; then
-		# We use the unsafe_yaml loader because strictyaml is not packaged. In
-		# theory they produce the same results, but pyyaml is faster and
-		# without safety checks.
-		edo ./meson.py setup \
-			--prefix "${EPREFIX}/usr" \
-			-Dhtml=false \
-			-Dunsafe_yaml=true \
-			docs/ docs/builddir
-	fi
-}
-
-python_compile_all() {
-	if [[ ${PV} = *9999* ]]; then
-		eninja -C docs/builddir
-	fi
-}
-
-src_test() {
-	tc-export PKG_CONFIG
-	if ${PKG_CONFIG} --exists Qt5Core && ! ${PKG_CONFIG} --exists Qt5Gui; then
-		ewarn "Found Qt5Core but not Qt5Gui; skipping tests"
-	else
-		distutils-r1_src_test
-	fi
-}
-
-python_test() {
-	(
-		# meson has its own tests for LTO support. We don't need to verify that
-		# all tests work when they happen to use it. And in particular, this
-		# breaks rust.
-		filter-lto
-
-		# remove unwanted python_wrapper_setup contents
-		# We actually do want to non-error if python2 is installed and tested.
-		remove="${T}/${EPYTHON}/bin:"
-		PATH=${PATH/${remove}/}
-
-		# test_meson_installed
-		unset PYTHONDONTWRITEBYTECODE
-
-		# https://bugs.gentoo.org/687792
-		unset PKG_CONFIG
-
-		# test_cross_file_system_paths
-		unset XDG_DATA_HOME
-
-		# 'test cases/unit/73 summary' expects 80 columns
-		export COLUMNS=80
-
-		# If JAVA_HOME is not set, meson looks for javac in PATH.
-		# If javac is in /usr/bin, meson assumes /usr/include is a valid
-		# JDK include path. Setting JAVA_HOME works around this broken
-		# autodetection. If no JDK is installed, we should end up with an empty
-		# value in JAVA_HOME, and the tests should get skipped.
-		export JAVA_HOME=$(java-config -O 2>/dev/null)
-
-		${EPYTHON} -u run_tests.py
-	) || die "Testing failed with ${EPYTHON}"
-}
-
-python_install_all() {
-	distutils-r1_python_install_all
-
-	insinto /usr/share/vim/vimfiles
-	doins -r data/syntax-highlighting/vim/{ftdetect,indent,syntax}
-
-	dozshcomp data/shell-completions/zsh/_meson
-	dobashcomp data/shell-completions/bash/meson
-
-	if [[ ${PV} = *9999* ]]; then
-		DESTDIR="${ED}" eninja -C docs/builddir install
-	else
-		newman "${DISTDIR}"/meson-reference-${MY_PV}.3 meson-reference.3
-	fi
-}
diff --git a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.4.ebuild b/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.1.ebuild
similarity index 96%
rename from sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.4.ebuild
rename to sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.1.ebuild
index 699967ac5f..3b3b8ff738 100644
--- a/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.8.4.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-build/meson/meson-1.9.1.ebuild
@@ -32,8 +32,9 @@ else
 	# Releases may be signed by those listed in Releasing.md. Jussi
 	# remains the default release manager.
 	# https://github.com/mesonbuild/meson/commit/c2d795735fa1c46c54d6aed4d4a30f36a1f853cb
-	BDEPEND="verify-sig? ( sec-keys/openpgp-keys-jpakkane )"
-	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/jpakkane.gpg
+	BDEPEND="verify-sig? ( >=sec-keys/openpgp-keys-eschwartz-20250723-r1 sec-keys/openpgp-keys-jpakkane )"
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/eschwartz.asc
+	#VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/jpakkane.gpg
 
 	if [[ ${PV} != *_rc* ]] ; then
 		KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"