diff --git a/debian12/DE_default_source.list b/debian12/DE_default_source.list
new file mode 100644
index 0000000..8bfe307
--- /dev/null
+++ b/debian12/DE_default_source.list
@@ -0,0 +1,11 @@
+deb http://ftp.de.debian.org/debian/ bookworm main contrib non-free-firmware
+deb-src http://ftp.de.debian.org/debian/ bookworm main contrib non-free-firmware
+
+deb http://ftp.de.debian.org/debian/ bookworm-updates main contrib non-free-firmware
+deb-src http://ftp.de.debian.org/debian/ bookworm-updates main contrib non-free-firmware
+
+deb http://ftp.de.debian.org/debian-security bookworm-security main contrib
+deb-src http://ftp.de.debian.org/debian-security bookworm-security main contrib
+
+deb http://ftp.de.debian.org/debian bookworm-backports main
+deb-src http://ftp.de.debian.org/debian bookworm-backports main
\ No newline at end of file