diff --git a/bash/apt.sh b/bash/apt.sh
index 5b821e2..a0f7353 100644
--- a/bash/apt.sh
+++ b/bash/apt.sh
@@ -3,6 +3,30 @@ apt_clean() {
 		clean
 }
 
+apt_install_backports() {
+	apt_install_target "${DEBIAN_CODENAME}-backports" "${@}"
+}
+
+apt_install_release() {
+	apt_install_target "${DEBIAN_CODENAME}" "${@}"
+}
+
+apt_install_target() {
+	local target="${1}"
+	shift
+	local package
+	for package in "${@}"; do
+		log_info
+		log_info "${package} ← ${target}"
+		apt-get \
+			install \
+			--assume-yes \
+			--target-release "${target}" \
+			"${package}"
+		apt_clean
+	done
+}
+
 apt_update() {
 	apt-get \
 		update
@@ -12,4 +36,5 @@ apt_upgrade() {
 	apt-get \
 		upgrade \
 		--assume-yes
+	apt_clean
 }
diff --git a/bash/debian.sh b/bash/debian.sh
index acf628d..e3aa7ba 100644
--- a/bash/debian.sh
+++ b/bash/debian.sh
@@ -1,3 +1,8 @@
-function debian_disable_frontend {
-    export DEBIAN_FRONTEND='noninteractive'
+DEBIAN_CODENAME="$(
+	grep "VERSION_CODENAME" "/etc/os-release" |
+		cut --delimiter "=" --fields "2"
+)"
+
+debian_disable_frontend() {
+	export DEBIAN_FRONTEND='noninteractive'
 }
diff --git a/bash/rescue.sh b/bash/rescue.sh
index 732d1ea..3a4bb7d 100644
--- a/bash/rescue.sh
+++ b/bash/rescue.sh
@@ -1,7 +1,5 @@
 rescue_configure() {
 	local hostname="${1}"
-	local release="bookworm"
-	local package
 	# apt / conf
 	printf "\
 Acquire::AllowInsecureRepositories False;
@@ -17,13 +15,13 @@ Dpkg::Progress True;
 	# apt / sources
 	printf "%s" "\
 deb https://deb.debian.org/debian \
-${release} main non-free-firmware contrib non-free
+${DEBIAN_CODENAME} main non-free-firmware contrib non-free
 deb https://deb.debian.org/debian \
-${release}-backports main non-free-firmware contrib non-free
+${DEBIAN_CODENAME}-backports main non-free-firmware contrib non-free
 deb https://deb.debian.org/debian \
-${release}-updates main non-free-firmware contrib non-free
+${DEBIAN_CODENAME}-updates main non-free-firmware contrib non-free
 deb https://deb.debian.org/debian-security \
-${release}-security main non-free-firmware contrib non-free
+${DEBIAN_CODENAME}-security main non-free-firmware contrib non-free
 " >"/etc/apt/sources.list"
 	# bash / rc
 	main_link_bashrc
@@ -42,41 +40,22 @@ fr_FR.UTF-8 UTF-8
 	# disable frontend
 	debian_disable_frontend
 	# install backports
-	set "tmux"
-	for package in "${@}"; do
-		echo
-		echo "${package}"
-		apt-get install --assume-yes \
-			--target-release "${release}-backports" \
-			"${package}"
-		apt_clean
-	done
+	apt_install_backports "tmux"
 	# install packages
-	set "apt-file" "mosh" "screen" "byobu"
-	for package in "${@}"; do
-		echo
-		echo "${package}"
-		apt-get install --assume-yes \
-			"${package}"
-		apt_clean
-	done
+	apt_install_release "apt-file" "mosh" "screen" "byobu"
 	# update catalog
 	apt_update
 }
 
 rescue_install() {
-	local package
-	local release="bookworm"
 	# update catalog
 	apt_update
 	# disable frontend
 	debian_disable_frontend
 	# upgrade packages
 	apt_upgrade
-	# clean cache
-	apt_clean
 	# install packages
-	set \
+	apt_install_release \
 		"man-db" \
 		"dmidecode" "efibootmgr" "lshw" "pciutils" "usbutils" \
 		"parted" "mdadm" "cryptsetup-bin" "lvm2" \
@@ -84,26 +63,11 @@ rescue_install() {
 		"git" "micro" "nano" "python3" "rsync" "vim" \
 		"exa" "lf" "ncdu" "nnn" "ranger" "tree" \
 		"file" "htop" "iotop" "ipcalc" "libdigest-sha3-perl" "lsof"
-	for package in "${@}"; do
-		echo
-		echo "${package}"
-		apt-get install --assume-yes \
-			"${package}"
-		apt_clean
-	done
 	# install backports
-	set \
+	apt_install_backports \
 		"grub-pc-bin" \
 		\
 		"grub-efi-amd64-bin"
-	for package in "${@}"; do
-		echo
-		echo "${package}"
-		apt-get install --assume-yes \
-			--target-release "${release}-backports" \
-			"${package}"
-		apt_clean
-	done
 }
 
 rescue_upload() {