diff --git a/dev-build/FoBiS/FoBiS-3.1.0.ebuild b/dev-build/FoBiS/FoBiS-3.1.0.ebuild
new file mode 100644
index 0000000000..82613e46a4
--- /dev/null
+++ b/dev-build/FoBiS/FoBiS-3.1.0.ebuild
@@ -0,0 +1,24 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{11..13} )
+PYPI_PN="${PN}.py"
+PYPI_NO_NORMALIZE=1
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="FoBiS.py, a Fortran Building System for poor men"
+HOMEPAGE="https://github.com/szaghi/FoBiS"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="graphviz"
+RESTRICT="mirror"
+
+RDEPEND="
+	graphviz? ( dev-python/graphviz[${PYTHON_USEDEP}] )
+"
diff --git a/dev-build/FoBiS/Manifest b/dev-build/FoBiS/Manifest
index 58f0e46fca..c1559eeec7 100644
--- a/dev-build/FoBiS/Manifest
+++ b/dev-build/FoBiS/Manifest
@@ -1,2 +1,3 @@
 DIST FoBiS.py-3.0.5.tar.gz 49171 BLAKE2B c65726e84e5eb55d741aeb04f5cf44e94796af2b6539695f1b7a19f56ccfa2ece45d9bd4fabdd224a9d8e113f8e7f5e1258c52ad5f1837b23896a4e4edef971a SHA512 8f0e495cd73f81685b05fd5d491ef21e533a0caba6be5b1a892a15f5f22a625faf038af3f43a700fb6ff4f26d753b50137527fbd380dd17fca6ea1943369c84b
 DIST FoBiS.py-3.0.6.tar.gz 49871 BLAKE2B 94aef56602d0b873da5f66a6abccd0256c73ee8fcfbab8ad1af7b26824411cc18c218c38162a4faf1b9a670ecf85a9938ff51d64c2e2773c0d435706f7ab9f57 SHA512 a9504d3d7dbc66f51902eb9101b40da61d75eddcb8daba452aa697768ccb6333a7945439faef05070df686064009ba669ae11631d585656680ff3ca5c049d87d
+DIST FoBiS.py-3.1.0.tar.gz 50502 BLAKE2B b89865372c1d31ea216de1f5ead15f790ab0c09dbf70da9c2ee9100f02db1ff29a2167b3bc3c18319d5a2028c7d672d97c15cfdcd74b5166c0c00d6e8214ef35 SHA512 f5110ecd2ebc17e6c9a7e53b54957b4ac104eed42ffb34b0b2061f4cf43ac847ed3160d5e92c7f9211c28a4bbeaa9f271bcd6e07f0edd2cbfd60f8cb102ac27c