diff --git a/spcd.sh b/spcd.sh
index d2fe8f7..b954910 100644
--- a/spcd.sh
+++ b/spcd.sh
@@ -265,25 +265,8 @@ ${SPCD_PROJECT_ROOT}$(basename "${GITHUB_SERVER_URL}")"
         ;;
     *) ;;
     esac
-    # set package format
-    case "${SPCD_PM}" in
-    "${SPCD_PM_APK}")
-        SPCD_PF="${SPCD_PF_APK}"
-        ;;
-    "${SPCD_PM_APT}")
-        SPCD_PF="${SPCD_PF_DEB}"
-        ;;
-    "${SPCD_PM_PACMAN}")
-        SPCD_PF="${SPCD_PF_PKG}"
-        ;;
-    "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
-        SPCD_PF="${SPCD_PF_RPM}"
-        ;;
-    *) ;;
-    esac
-    # set package manager variables
     spcd_split
-    spcd_echo "SPCD_PF" "SPCD_PM"
+    spcd_echo "SPCD_PM"
     case "${SPCD_PM}" in
     "${SPCD_PM_DNF}")
         SPCD_PM_CLEAN="dnf clean all"
@@ -797,8 +780,8 @@ spcd_install_packages() {
     spcd_install_package "rsync"
     # shell check
     spcd_substep "Install ShellCheck"
-    case "${SPCD_PF}" in
-    "${SPCD_PF_RPM}")
+    case "${SPCD_PM}" in
+    "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
         spcd_install_package "ShellCheck"
         ;;
     *) spcd_install_package "shellcheck" ;;
@@ -808,10 +791,7 @@ spcd_install_packages() {
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}" | "${SPCD_OS_ROCKY}") ;;
     "${SPCD_OS_DEBIAN}")
-        case "${SPCD_OS_VERSION}" in
-        "bullseye") ;;
-        *) spcd_install_package "shfmt" ;;
-        esac
+        [ "${SPCD_OS_VERSION}" != "bullseye" ] && spcd_install_package "shfmt"
         ;;
     *) spcd_install_package "shfmt" ;;
     esac
@@ -980,11 +960,11 @@ spcd_step() {
 spcd_substep() {
     SPCD_SUBSTEP=$((SPCD_SUBSTEP + 1))
     spcd_banner \
-        "${SPCD_STEP}.${SPCD_SUBSTEP}" \
-        "${SPCD_VERT}" \
-        "${SPCD_STEP_TEXT}" \
-        "${SPCD_VERT}" \
-        "${*}"
+    "${SPCD_STEP}.${SPCD_SUBSTEP}" \
+    "${SPCD_VERT}" \
+    "${SPCD_STEP_TEXT}" \
+    "${SPCD_VERT}" \
+    "${*}"
 }
 
 spcd_write() {
@@ -1018,11 +998,6 @@ SPCD_OS_OPENSUSE="opensuse"
 SPCD_OS_ROCKY="rocky"
 SPCD_OS_UBUNTU="ubuntu"
 
-SPCD_PF_APK="apk"
-SPCD_PF_DEB="deb"
-SPCD_PF_PKG="pkg"
-SPCD_PF_RPM="rpm"
-
 SPCD_PM_APK="apk"
 SPCD_PM_APT="apt"
 SPCD_PM_DNF="dnf"