diff --git a/sys-apps/nix/Manifest b/sys-apps/nix/Manifest
index af4a856..45bc0d7 100644
--- a/sys-apps/nix/Manifest
+++ b/sys-apps/nix/Manifest
@@ -1,3 +1,2 @@
 DIST nix-2.24.10.tar.gz 1655147 BLAKE2B 79524973ea6dbace6755ece012144525b01c3cd3d9dfb2d9499a4ab0e3171537e28069a72b05366f2a64ded0bf5f170da03430a5428af64e94a6e793cd97735a SHA512 32322c0a9a2c08da839d3c81b72d75630cde67d20a93ad15a5eb9d7fec545e7e935c0f11b979aca34ccd5004654ebb1436ce60d3a009b205b693bb8057f16733
 DIST nix-2.24.9.tar.gz 1653741 BLAKE2B 7e1b830b1115aaa95c4ae172d35e066b5849113cad8c9678b21c778fe9abea774a984e0f02968fd5ffe4b555e6c93aa149fa8c20baba3a7e8488d3845ca5fb76 SHA512 b498e8d20ee40daf3b1bd753d5c56ff6da9f204feecba4044dc9a122c2cecfda6fdbc0a61ec185da157d66e9e515409699bc1a4155b1abe9e243df940d803154
-DIST nix-2.25.0.tar.gz 1733587 BLAKE2B 97d546a54a6cb8decf88a8fc0ad8b9514d23fab7db150d786c1b19b15fd863341c92d4b8cf36b49e9b92b1d45f2b6ce658793e4b421a9e67205037f419ed8d67 SHA512 2f66fcf134f54ea7d5e2524afb66616c3e25a27d66f1b5241b2264bea6a8da922b6fc38cecc02c276b8bd1d3f139b0d4ec94af91da19e0456cb283b485812cef
diff --git a/sys-apps/nix/nix-2.25.0.ebuild b/sys-apps/nix/nix-2.25.0.ebuild
deleted file mode 100644
index 2d32992..0000000
--- a/sys-apps/nix/nix-2.25.0.ebuild
+++ /dev/null
@@ -1,201 +0,0 @@
-# Copyright 1999-2022 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit autotools linux-info readme.gentoo-r1 tmpfiles toolchain-funcs
-
-DESCRIPTION="A purely functional package manager"
-HOMEPAGE="https://nixos.org/nix"
-
-SRC_URI="https://github.com/NixOS/nix/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
-LICENSE="LGPL-2.1"
-SLOT="0"
-KEYWORDS="~amd64"
-IUSE="+allocate-build-users +etc-profile +gc doc +sodium"
-
-BDEPEND="
-	doc? ( app-text/mdbook
-		app-text/mdbook-linkcheck
-	)
-"
-# sys-apps/busybox-nix-sandbox-shell is needed for sandbox mount of /bin/sh
-RDEPEND="
-	app-arch/brotli
-	app-arch/bzip2
-	app-arch/xz-utils
-	app-misc/jq
-	app-text/lowdown-nix
-	dev-cpp/gtest
-	dev-db/sqlite
-	dev-libs/editline:0=
-	dev-libs/libgit2:0=
-	amd64? ( dev-libs/libcpuid:0= )
-	dev-libs/openssl:0=
-	>=dev-libs/boost-1.66:0=[context]
-	net-misc/curl
-	sys-apps/busybox-nix-sandbox-shell
-	sys-libs/libseccomp
-	sys-libs/zlib
-	gc? ( >=dev-libs/boehm-gc-8.2.6[cxx] )
-	doc? ( dev-libs/libxml2
-		dev-libs/libxslt
-		app-text/docbook-xsl-stylesheets
-	)
-	sodium? ( dev-libs/libsodium:0= )
-"
-# add users and groups
-RDEPEND+="
-	acct-group/nixbld
-	allocate-build-users? (
-"
-for i in {1..64}; do
-	RDEPEND+="
-		>=acct-user/nixbld${i}-1
-	"
-done
-RDEPEND+="
-	)
-"
-DEPEND="${RDEPEND}
-	dev-cpp/nlohmann_json
-	dev-cpp/toml11
-	>=dev-cpp/rapidcheck-0_pre20231214
-	>=sys-devel/bison-2.6
-	>=sys-devel/flex-2.5.35
-"
-
-# Upstream does not bundle .m4 files, extract from upstreams:
-# dev-util/pkgconfig: m4/pkg.m4
-# dev-build/autoconf-archive: m4/ax_boost_base.m4, m4/ax_require_defined.m4
-DEPEND+="
-	dev-build/autoconf-archive
-	virtual/pkgconfig
-"
-
-# lix is a drop-in replacement of sys-apps/nix: it installs the same
-# binary file names.
-RDEPEND+="
-	!!sys-apps/lix
-"
-
-PATCHES=(
-	"${FILESDIR}"/${PN}-2.10-libpaths.patch
-	"${FILESDIR}"/${PN}-2.16-no-sandbox-fallback.patch
-	"${FILESDIR}"/${PN}-2.22-no-sandbox-fallback-README.patch
-)
-
-DISABLE_AUTOFORMATTING=yes
-DOC_CONTENTS=" Quick start user guide on Gentoo:
-
-[as root] enable nix-daemon service:
-	[systemd] # systemctl enable nix-daemon && systemctl start nix-daemon
-	[openrc]  # rc-update add nix-daemon && /etc/init.d/nix-daemon start
-[as a user] relogin to get environment and profile update
-[as a user] fetch nixpkgs update:
-	\$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable
-	\$ nix-channel --update
-[as a user] install nix packages:
-	\$ nix-env -i mc
-[as a user] configure environment:
-	Somewhere in .bash_profile you might want to set
-	LOCALE_ARCHIVE=\$HOME/.nix-profile/lib/locale/locale-archive
-	but please read https://github.com/NixOS/nixpkgs/issues/21820
-
-Next steps:
-	nix package manager user manual: http://nixos.org/nix/manual/
-"
-
-pkg_pretend() {
-	# USER_NS is used to run builders in a default setting in linux:
-	#     https://nixos.wiki/wiki/Nix#Sandboxing
-	local CONFIG_CHECK="~USER_NS"
-	check_extra_config
-}
-
-src_prepare() {
-	default
-
-	eautoreconf
-	# workaround unhandled AC_CONFIG_AUX_DIR in autotools.eclass:
-	#   https://bugs.gentoo.org/927017
-	cp config.guess config/config.guess || die
-	cp config.sub config/config.sub || die
-
-	# rely on users settings
-	sed 's/GLOBAL_CXXFLAGS += -O3/GLOBAL_CXXFLAGS += /' -i Makefile || die
-
-	# inject our copy of lowdown-nix
-	export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}${PKG_CONFIG_PATH:+:}${EPREFIX}/usr/$(get_libdir)/lowdown-nix/lib/pkgconfig"
-	export PATH="$PATH:${EPREFIX}/usr/$(get_libdir)/lowdown-nix/bin"
-
-	# inject rapidcheck extra includes
-	export CXXFLAGS="${CXXFLAGS} -I${EPREFIX}/usr/include/rapidcheck/extras/gtest/include"
-}
-
-src_configure() {
-	CONFIG_SHELL="${BROOT}/bin/bash" econf \
-		--localstatedir="${EPREFIX}"/nix/var \
-		$(use_enable gc) \
-		$(use_enable doc doc-gen) \
-		--with-sandbox-shell="${EPREFIX}"/usr/bin/busybox-nix-sandbox-shell
-
-	emake Makefile.config # gets generated late
-	cat >> Makefile.config <<-EOF
-	V = 1
-	CC = $(tc-getCC)
-	CXX = $(tc-getCXX)
-	EOF
-}
-
-src_compile() {
-	# Upstream does not support building without installation.
-	# Rely on src_install's DESTDIR=.
-	:
-}
-
-src_install() {
-	# TODO: emacs highlighter
-	default
-
-	readme.gentoo_create_doc
-
-	# TODO: will need a tweak for prefix
-
-	# Follow the steps of 'scripts/install-multi-user.sh:create_directories()'
-	local dir dirs=(
-		/nix
-		/nix/var
-		/nix/var/log
-		/nix/var/log/nix
-		/nix/var/log/nix/drvs
-		/nix/var/nix{,/db,/gcroots,/profiles,/temproots,/userpool,/daemon-socket}
-		/nix/var/nix/{gcroots,profiles}/per-user
-	)
-	for dir in "${dirs[@]}"; do
-		keepdir "${dir}"
-		fperms 0755 "${dir}"
-	done
-
-	keepdir             /nix/store
-	fowners root:nixbld /nix/store
-	fperms 1775         /nix/store
-
-	newinitd "${FILESDIR}"/nix-daemon.initd nix-daemon
-
-	if ! use etc-profile; then
-		rm "${ED}"/etc/profile.d/nix.sh || die
-	fi
-	# nix-daemon.sh should not be used for users' profile.
-	# Only for daemon itself.
-	rm "${ED}"/etc/profile.d/nix-daemon.sh || die
-}
-
-pkg_postinst() {
-	if ! use etc-profile; then
-		ewarn "${EROOT}/etc/profile.d/nix.sh was removed (due to USE=-etc-profile)."
-	fi
-
-	readme.gentoo_print_elog
-	tmpfiles_process nix-daemon.conf
-}