diff --git a/www-servers/thin/Manifest b/www-servers/thin/Manifest
index 7678edeb491b9..05b08d4080f31 100644
--- a/www-servers/thin/Manifest
+++ b/www-servers/thin/Manifest
@@ -1 +1,2 @@
 DIST thin-1.8.2.tar.gz 181290 BLAKE2B 6c8d3be6dca6f9b9b549b863150de85efdd26700c27b28f1765e4d2212827d31f2aae9f586cfa485b62b3da3742c5205486c9c8fd5bd38ec32a2a896c5e0af93 SHA512 5f222b54a86156bc5c4b9623a225cd9a4e189f3d2744f8d11efc74e91167e201a554a191f19abb081a050a206f3b281bb7c627a3e72a5ba2b0a73e0e500dd0ed
+DIST thin-2.0.0.tar.gz 182105 BLAKE2B f608e1905756d73b78402b28ee696db4ce414c195f47f07cd9976796adfc2c0ca50632c6cce837ff1b00425bb107bda68ec79ea9bc840f38438157aafa5bdd54 SHA512 b38b71c6f6f69a1bd8804948519c59f45e5fc80d92b4242926d53a52e90a18809f7cba4f3e1edfa55258b727f6d85b3613dfa8939fb92d73212fd33312a527e8
diff --git a/www-servers/thin/thin-2.0.0.ebuild b/www-servers/thin/thin-2.0.0.ebuild
new file mode 100644
index 0000000000000..9203e43603dae
--- /dev/null
+++ b/www-servers/thin/thin-2.0.0.ebuild
@@ -0,0 +1,95 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+USE_RUBY="ruby32"
+
+RUBY_FAKEGEM_RECIPE_TEST="rspec3"
+RUBY_FAKEGEM_GEMSPEC="${PN}.gemspec"
+
+inherit ruby-fakegem
+
+DESCRIPTION="A fast and very simple Ruby web server"
+HOMEPAGE="https://github.com/macournoyer/thin"
+SRC_URI="https://github.com/macournoyer/thin/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Ruby"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc64 ~x86"
+IUSE="doc test"
+
+DEPEND="dev-util/ragel"
+
+# The runtime dependencies are used at build-time as well since the
+# Rakefile loads thin!
+mydeps=">=dev-ruby/daemons-1.0.9
+	>=dev-ruby/rack-1.0.0:* <dev-ruby/rack-4:*
+	>=dev-ruby/eventmachine-1.0.4:0
+	virtual/ruby-ssl"
+
+ruby_add_rdepend "${mydeps}"
+ruby_add_bdepend "${mydeps}
+	dev-ruby/rake-compiler"
+
+all_ruby_prepare() {
+	# Fix Ragel-based parser generation (uses a *very* old syntax that
+	# is not supported in Gentoo)
+	sed -i -e 's: | rlgen-cd::' Rakefile || die
+
+	# Fix specs' dependencies so that the extension is not rebuilt
+	# when running tests
+	rm rakelib/spec.rake || die
+
+	# Fix rspec version to allow newer 2.x versions
+	sed -i -e '/gem "rspec"/ s/1.2.9/3.0/ ; 2igem "rack", "<4"' spec/spec_helper.rb || die
+
+	# Avoid CLEAN since it may not be available and we don't need it.
+	sed -i -e '/CLEAN/ s:^:#:' rakelib/*.rake || die
+
+	# Avoid a spec trying to change privileges which will not work in
+	# all Gentoo test cases.
+	sed -e '/should change privilege/ s/it/xit/' \
+		-i spec/daemonizing_spec.rb || die
+
+	sed -i \
+		-e '/tracing routines (with NO custom logger)/,/^  end/ s:^:#:'\
+		spec/logging_spec.rb || die
+
+	find spec/perf -name "*_spec.rb" -exec \
+		sed -i '/be_faster_then/ i \    skip' {} \;
+
+	sed -i -e "s/Spec::Runner/Rspec/" spec/spec_helper.rb || die
+	# nasty but too complex to fix up for now :(
+	use doc || rm rakelib/rdoc.rake
+
+	sed -e 's:_relative ": "./:' \
+		-i ${RUBY_FAKEGEM_GEMSPEC} || die
+}
+
+each_ruby_compile() {
+	${RUBY} -S rake compile || die "rake compile failed"
+}
+
+all_ruby_install() {
+	all_fakegem_install
+
+	keepdir /etc/thin
+	newinitd "${FILESDIR}"/${PN}.initd-r4 ${PN}
+	newconfd "${FILESDIR}"/${PN}.confd-2 ${PN}
+
+	einfo
+	elog "Thin is now shipped with init scripts."
+	elog "The default script (/etc/init.d/thin) will start all servers that have"
+	elog "configuration files in /etc/thin/. You can symlink the init script to"
+	elog "files of the format 'thin.SERVER' to be able to start individual servers."
+	elog "See /etc/conf.d/thin for more configuration options."
+	einfo
+}
+
+each_ruby_install() {
+	each_fakegem_install
+
+	# Ensure that newer rubygems version see the extention as installed
+	ruby_fakegem_extensions_installed
+}