diff --git a/x11-terms/kitty/Manifest b/x11-terms/kitty/Manifest
index 212d88a2bfee4..4338904ea3a81 100644
--- a/x11-terms/kitty/Manifest
+++ b/x11-terms/kitty/Manifest
@@ -4,3 +4,6 @@ DIST kitty-0.42.1.tar.xz.sig 566 BLAKE2B efc003de8ddbc7f4a0f98343ecd9e8447cd9bf0
 DIST kitty-0.42.2-vendor.tar.xz 1933124 BLAKE2B aa3fc60e2a08d247a64552e8d1dfdd9225e3690f78162ef09be00c2b646d9518d5c52118f96b9d96ccf63be8c92d4d0ddbaaa491fc60118dfc404295099e9674 SHA512 c6461521dff9e62821202d419f95b0623e31014e61b04b77919912c91136185fa852e786ecc9ab94bea90bf43e690c46d556fa0bfea57c6a18d805a9b0dce00d
 DIST kitty-0.42.2.tar.xz 12534304 BLAKE2B 56c80ab6467e4c4bef0acd0724e8a2458234c4bbdf81aaffed330a3148c299c3c59bf9cf5309d14618b0d143ee8f925fdb25776d6d5d530ffad24673cc88b04d SHA512 29e17ee3e4709b90d8d945ecd1737440bc88ad276cde4f5d159fd094de571bf7a10ccb86dfe9e0f8e213e36e59f7c62e2045f411d199ec729722a6462279d949
 DIST kitty-0.42.2.tar.xz.sig 566 BLAKE2B 58487f8a62fd7e0e67809c31301545b6bf9a6164f45ca13b106983c6d605f478c3e2121f77c78aa8894b1c9c871af1516a6f5a2b5da9279de78bf19b448a6302 SHA512 8146741a6cfb8846a7a369ccf5fe0f2f3a537d38b933d83463337a34e2b850d1c86ef4e1ef860cc5a7dfe6d67f8d8b71151150a578504b3165779a9547141033
+DIST kitty-0.43.0-vendor.tar.xz 1935964 BLAKE2B fba4fa6ade8a23b235826ceecf3442d8c3a689147d6f0539504557c33a8c293b77a2a544d1ed3c2b625acb923950970e31a97b64cfb0d6a10e6a4783fb6e1f7a SHA512 a245f5a209ffad515faf977c5adf38e0b4c753547ec0c60127a033d5e2e2dd6bee12e7e051cae533a9f95d4b3f79bca0b99afad447c74577a102de7e3e0d4b3c
+DIST kitty-0.43.0.tar.xz 12751580 BLAKE2B 7e7212d4d4f1e00e2885cf6f95a7dacc741c3660d6aea6f2b494b4c397648340c72b1bff0e659e484634fad0395b850daf0d94594c2ffe20e41f6b044e9e6ab9 SHA512 87066a74d61572975a344837b7bee987acedaaa2fa4cce375003d1836403534bee9ca64db0ea4243038620995237c75712652bae28b12828e6a030f0874730da
+DIST kitty-0.43.0.tar.xz.sig 566 BLAKE2B 0db7ee39256467a66354ba2bbf1342ab850c2d2fdbe7ea6f7ad0ce799bc25c03a783d5b16b59cfa1bddd1a9486b4db4a59474a3e5a2a2363eff71bac4aeba328 SHA512 bb34f4315f7e23a309940ca1653a226801be569f276c0da8366adbc529a0b442d0f2b87b44d995d3a3ac8a9c662bcc5258630f4d3664251241f2d99f1270bbf7
diff --git a/x11-terms/kitty/kitty-0.43.0.ebuild b/x11-terms/kitty/kitty-0.43.0.ebuild
new file mode 100644
index 0000000000000..250b3065d5056
--- /dev/null
+++ b/x11-terms/kitty/kitty-0.43.0.ebuild
@@ -0,0 +1,203 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+inherit edo go-env optfeature multiprocessing python-single-r1
+inherit shell-completion toolchain-funcs xdg
+
+if [[ ${PV} == 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/kovidgoyal/kitty.git"
+else
+	inherit verify-sig
+	SRC_URI="
+		https://github.com/kovidgoyal/kitty/releases/download/v${PV}/${P}.tar.xz
+		https://dev.gentoo.org/~ionen/distfiles/${P}-vendor.tar.xz
+		verify-sig? ( https://github.com/kovidgoyal/kitty/releases/download/v${PV}/${P}.tar.xz.sig )
+	"
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/kovidgoyal.gpg
+	KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
+fi
+
+DESCRIPTION="Fast, feature-rich, GPU-based terminal"
+HOMEPAGE="https://sw.kovidgoyal.net/kitty/"
+
+LICENSE="GPL-3 ZLIB"
+LICENSE+=" Apache-2.0 BSD BSD-2 MIT MPL-2.0" # go
+SLOT="0"
+IUSE="+X test wayland"
+REQUIRED_USE="
+	${PYTHON_REQUIRED_USE}
+	|| ( X wayland )
+	test? ( X wayland )
+"
+RESTRICT="!test? ( test )"
+
+# dlopen: fontconfig,libglvnd
+RDEPEND="
+	${PYTHON_DEPS}
+	dev-libs/openssl:=
+	dev-libs/xxhash
+	media-fonts/symbols-nerd-font
+	media-libs/freetype
+	media-libs/harfbuzz:=[truetype]
+	media-libs/lcms:2
+	media-libs/libglvnd[X?]
+	media-libs/libpng:=
+	sys-apps/dbus
+	sys-libs/zlib:=
+	x11-libs/cairo
+	x11-libs/libxkbcommon[X?]
+	x11-misc/xkeyboard-config
+	~x11-terms/kitty-shell-integration-${PV}
+	~x11-terms/kitty-terminfo-${PV}
+	X? (
+		x11-libs/libX11
+		x11-libs/libXcursor
+	)
+	wayland? ( dev-libs/wayland )
+	!sci-mathematics/kissat
+"
+DEPEND="
+	${RDEPEND}
+	amd64? ( >=dev-libs/simde-0.8.0-r1 )
+	arm64? ( dev-libs/simde )
+	x86? ( dev-libs/simde )
+	X? (
+		x11-base/xorg-proto
+		x11-libs/libXi
+		x11-libs/libXinerama
+		x11-libs/libXrandr
+	)
+	wayland? ( dev-libs/wayland-protocols )
+"
+# bug #919751 wrt go subslot
+BDEPEND="
+	${PYTHON_DEPS}
+	>=dev-lang/go-1.24:=
+	sys-libs/ncurses
+	virtual/pkgconfig
+	test? ( $(python_gen_cond_dep 'dev-python/pillow[zlib,${PYTHON_USEDEP}]') )
+	wayland? ( dev-util/wayland-scanner )
+"
+[[ ${PV} == 9999 ]] || BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-kovidgoyal )"
+
+QA_FLAGS_IGNORED="usr/bin/kitten" # written in Go
+
+src_unpack() {
+	if [[ ${PV} == 9999 ]]; then
+		git-r3_src_unpack
+		cd "${S}" || die
+		edo go mod vendor
+	else
+		use verify-sig &&
+			verify-sig_verify_detached "${DISTDIR}"/${P}.tar.xz{,.sig}
+		default
+	fi
+}
+
+src_prepare() {
+	default
+
+	# sed unfortunately feels easier on maintenance than patches here
+	local sedargs=(
+		-e "/num_workers =/s/=.*/= $(makeopts_jobs)/"
+		-e "s/cflags.append.*-O3.*/pass/" -e 's/-O3//'
+		-e "s/cflags.append(fortify_source)/pass/" # use toolchain's _f_s
+		-e "s/ld_flags.append('-[sw]')/pass/"
+	)
+
+	# kitty is often popular on wayland-only setups, try to allow this
+	use !X && sedargs+=( -e '/gl_libs =/s/=.*/= []/' ) #857918
+	use !X || use !wayland &&
+		sedargs+=( -e "s/'x11 wayland'/'$(usex X x11 wayland)'/" )
+
+	# skip docs for live version, missing dependencies
+	[[ ${PV} == 9999 ]] && sedargs+=( -e '/exists.*_build/,/docs(ddir)/d' )
+
+	sed -i setup.py "${sedargs[@]}" || die
+
+	local skiptests=(
+		# broken with nspawn defaults, skip for convenience (bug #954176)
+		kitty_tests/crypto.py
+		# relies on 'who' command which doesn't detect users with pid-sandbox
+		kitty_tests/utmp.py
+		# may fail/hang depending on environment and shell initialization
+		kitty_tests/{shell_integration,ssh}.py
+		# relies on /proc/self/fd and gets confused when ran from here
+		tools/utils/tpmfile_test.go
+	)
+	use !test || rm "${skiptests[@]}" || die
+}
+
+src_compile() {
+	tc-export CC
+	local -x PKGCONFIG_EXE=$(tc-getPKG_CONFIG)
+
+	go-env_set_compile_environment
+	local -x GOFLAGS="-p=$(makeopts_jobs) -v -x -buildvcs=false"
+	use ppc64 && [[ $(tc-endian) == big ]] || GOFLAGS+=" -buildmode=pie"
+
+	local conf=(
+		--disable-link-time-optimization
+		--ignore-compiler-warnings
+		--libdir-name=$(get_libdir)
+		--shell-integration="enabled no-sudo"
+		--update-check-interval=0
+		--verbose
+	)
+
+	edo "${EPYTHON}" setup.py linux-package "${conf[@]}"
+	use test && edo "${EPYTHON}" setup.py build-launcher "${conf[@]}"
+
+	rm -r linux-package/share/terminfo || die # provided by kitty-terminfo
+
+	if [[ ${PV} == 9999 ]]; then
+		mkdir -p linux-package/share/doc/${PF} || die
+	else
+		mv linux-package/share/doc/{${PN},${PF}} || die
+	fi
+
+	if ! tc-is-cross-compiler; then
+		# generate default config reference, command taken from docs/conf.rst
+		linux-package/bin/kitty +runpy \
+			'from kitty.config import *; print(commented_out_default_config())' \
+			> linux-package/share/doc/${PF}/kitty.conf || die
+
+		# generate shell completions, shell-integration/ has some "old" pre-gen
+		# ones that currently miss things (no bash, no kitten for zsh, etc...)
+		linux-package/bin/kitten __complete__ setup bash > "${T}"/kitty || die
+		linux-package/bin/kitten __complete__ setup fish > "${T}"/kitty.fish || die
+		linux-package/bin/kitten __complete__ setup zsh > "${T}"/_kitty || die
+	fi
+}
+
+src_test() {
+	KITTY_CONFIG_DIRECTORY=${T} ./test.py || die # shebang is kitty
+}
+
+src_install() {
+	edo mv linux-package "${ED}"/usr
+
+	# kitty currently detects and copies the system's nerd font at build
+	# time, then uses that rather than the system's at runtime
+	dosym -r /usr/share/fonts/symbols-nerd-font/SymbolsNerdFontMono-Regular.ttf \
+		/usr/"$(get_libdir)"/kitty/fonts/SymbolsNerdFontMono-Regular.ttf
+
+	if ! tc-is-cross-compiler; then
+		dobashcomp "${T}"/kitty
+		bashcomp_alias kitty edit-in-kitty clone-in-kitty kitten
+		dofishcomp "${T}"/kitty.fish
+		dozshcomp "${T}"/_kitty
+	fi
+}
+
+pkg_postinst() {
+	xdg_pkg_postinst
+
+	optfeature "audio-based terminal bell support" media-libs/libcanberra
+	use X && optfeature "X11 startup notification support" x11-libs/startup-notification
+	optfeature "opening links from the terminal" x11-misc/xdg-utils
+}