diff --git a/ciss_live_builder.sh b/ciss_live_builder.sh
index a1c2731..4abfe38 100644
--- a/ciss_live_builder.sh
+++ b/ciss_live_builder.sh
@@ -215,9 +215,11 @@ lb_config_start
 
 if [[ "${VAR_SUITE}" == "bookworm" ]]; then
   lb_config_write
+  rm -f "${SCRIPT_BASEPATH}/config/hooks/live/9998_sources_list_trixie.chroot"
 else
   lb_config_write_trixie
   rm -f "${SCRIPT_BASEPATH}/config/hooks/live/0003_install_backports.chroot"
+  rm -f "${SCRIPT_BASEPATH}/config/hooks/live/9998_sources_list_bookworm.chroot"
 fi
 
 # shellcheck disable=SC2164
diff --git a/config/hooks/live/9998_sources_list.chroot b/config/hooks/live/9998_sources_list_bookworm.chroot
similarity index 100%
rename from config/hooks/live/9998_sources_list.chroot
rename to config/hooks/live/9998_sources_list_bookworm.chroot
diff --git a/config/hooks/live/9998_sources_list_trixie.chroot b/config/hooks/live/9998_sources_list_trixie.chroot
new file mode 100644
index 0000000..faf6d2c
--- /dev/null
+++ b/config/hooks/live/9998_sources_list_trixie.chroot
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -C -e -u -o pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+# sleep 1
+
+cd /root
+
+if [[ -f /etc/apt/sources.list ]]; then
+  mv /etc/apt/sources.list /root/.ciss/dlb/backup/sources.list.bak
+fi
+
+cat << 'EOF' >| /etc/apt/sources.list
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.2025.hardened.installer framework.
+# SPDX-PackageName: CISS.2025.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+#-----------------------------------------------------------------------------------------#
+#                                  OFFICIAL DEBIAN REPOS
+#-----------------------------------------------------------------------------------------#
+
+### Debian Main Repos Bookworm
+
+deb https://deb.debian.org/debian/ trixie main contrib non-free non-free-firmware
+deb-src https://deb.debian.org/debian/ trixie main contrib non-free non-free-firmware
+
+deb http://security.debian.org/debian-security trixie-security main contrib non-free non-free-firmware
+deb-src http://security.debian.org/debian-security trixie-security main contrib non-free non-free-firmware
+
+deb https://deb.debian.org/debian/ trixie-updates main contrib non-free non-free-firmware
+deb-src https://deb.debian.org/debian/ trixie-updates main contrib non-free non-free-firmware
+
+deb https://deb.debian.org/debian/ trixie-backports main contrib non-free non-free-firmware
+deb-src https://deb.debian.org/debian/ trixie-backports main contrib non-free non-free-firmware
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+EOF
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+# sleep 1
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh