diff --git a/sys-kernel/calculate-sources/calculate-sources-6.1.82.ebuild b/sys-kernel/calculate-sources/calculate-sources-6.1.82.ebuild
index 858047eee..3f765224b 100644
--- a/sys-kernel/calculate-sources/calculate-sources-6.1.82.ebuild
+++ b/sys-kernel/calculate-sources/calculate-sources-6.1.82.ebuild
@@ -1,6 +1,5 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2024 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: $
 
 EAPI=7
 ETYPE="sources"
diff --git a/sys-kernel/calculate-sources/calculate-sources-6.6.12.ebuild b/sys-kernel/calculate-sources/calculate-sources-6.6.12.ebuild
index bceeb96be..e3d7e1a5e 100644
--- a/sys-kernel/calculate-sources/calculate-sources-6.6.12.ebuild
+++ b/sys-kernel/calculate-sources/calculate-sources-6.6.12.ebuild
@@ -1,6 +1,5 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2024 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: $
 
 EAPI=7
 ETYPE="sources"
diff --git a/sys-kernel/calculate-sources/calculate-sources-6.6.22.ebuild b/sys-kernel/calculate-sources/calculate-sources-6.6.22.ebuild
index 858047eee..3f765224b 100644
--- a/sys-kernel/calculate-sources/calculate-sources-6.6.22.ebuild
+++ b/sys-kernel/calculate-sources/calculate-sources-6.6.22.ebuild
@@ -1,6 +1,5 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2024 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: $
 
 EAPI=7
 ETYPE="sources"
diff --git a/sys-kernel/calculate-sources/calculate-sources-6.7.10.ebuild b/sys-kernel/calculate-sources/calculate-sources-6.7.10.ebuild
index 858047eee..3f765224b 100644
--- a/sys-kernel/calculate-sources/calculate-sources-6.7.10.ebuild
+++ b/sys-kernel/calculate-sources/calculate-sources-6.7.10.ebuild
@@ -1,6 +1,5 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2024 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: $
 
 EAPI=7
 ETYPE="sources"
diff --git a/sys-kernel/calculate-sources/metadata.xml b/sys-kernel/calculate-sources/metadata.xml
index 5722f78fc..aed463fbc 100644
--- a/sys-kernel/calculate-sources/metadata.xml
+++ b/sys-kernel/calculate-sources/metadata.xml
@@ -7,10 +7,10 @@
         <description>Calculate Overlay</description>
     </maintainer>
     <longdescription lang="en">
-        Full sources including the Calculate patchset for the kernel.
+        Full Linux kernel sources including the Calculate patchset.
     </longdescription>
     <longdescription lang="ru">
-        Полные исходники ядра с патчами от Calculate.
+        Полные исходники ядра Linux, включая набор патчей Calculate.
     </longdescription>
     <use lang="en">
         <flag name="desktop">Desktop kernel configuration</flag>
diff --git a/sys-kernel/fake-sources/fake-sources-0.ebuild b/sys-kernel/fake-sources/fake-sources-0.ebuild
index d5a891740..9181fa42d 100644
--- a/sys-kernel/fake-sources/fake-sources-0.ebuild
+++ b/sys-kernel/fake-sources/fake-sources-0.ebuild
@@ -1,14 +1,10 @@
-# Copyright 1999-2014 Gentoo Foundation
+# Copyright 1999-2024 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/virtual/linux-sources/linux-sources-1.ebuild,v 1.4 2014/04/03 01:35:05 tomwij Exp $
 
 EAPI=7
 
 DESCRIPTION="Stub package for Linux kernel sources dependense"
-HOMEPAGE=""
-SRC_URI=""
 
 LICENSE=""
 SLOT="0"
 KEYWORDS="amd64 x86"
-
diff --git a/virtual/linux-sources/linux-sources-3-r13.ebuild b/virtual/linux-sources/linux-sources-3-r13.ebuild
new file mode 100644
index 000000000..a7203f715
--- /dev/null
+++ b/virtual/linux-sources/linux-sources-3-r13.ebuild
@@ -0,0 +1,26 @@
+# Copyright 1999-2024 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# NOTE: This is a version of `virtual/linux-sources-3-r8::gentoo` adopted to Calculate Linux
+
+EAPI=7
+
+DESCRIPTION="Virtual for Linux kernel sources in Calculate Linux"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="firmware"
+
+RDEPEND="
+	firmware? ( sys-kernel/linux-firmware )
+	|| (
+		sys-kernel/calculate-sources
+		sys-kernel/gentoo-sources
+		sys-kernel/vanilla-sources
+		sys-kernel/git-sources
+		sys-kernel/pf-sources
+		sys-kernel/rt-sources
+		sys-kernel/zen-sources
+		sys-kernel/gentoo-kernel
+		sys-kernel/gentoo-kernel-bin
+		sys-kernel/vanilla-kernel
+	)"
diff --git a/virtual/linux-sources/metadata.xml b/virtual/linux-sources/metadata.xml
index baf6ee9b0..bbc7bb261 100644
--- a/virtual/linux-sources/metadata.xml
+++ b/virtual/linux-sources/metadata.xml
@@ -6,4 +6,8 @@
         <name>Mir Calculate</name>
         <description>Calculate Overlay</description>
     </maintainer>
+    <use>
+        <flag name="firmware">Install linux kernel firmware</flag>
+    </use>
+    <stabilize-allarches/>
 </pkgmetadata>