diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 63b04c4..8d9ca7d 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -330,7 +330,37 @@ SPCD_PM_ZYPPER="zypper"
 # │ step │ environment │
 # ╰──────┴─────────────╯
 
-spcd_step__environment_defaults() {
+spcd_step__environment_defaults_print() {
+    set -- \
+        \
+        "CMD_SUM" \
+        \
+        "GIT_RWX" \
+        "GIT_SPCD" \
+        "GIT_SHUNIT" \
+        "REF_FEATURE" \
+        "REF_RELEASE" \
+        "REF_STAGING" \
+        "URL_ALMA" \
+        "URL_ALPINE" \
+        "URL_ARCH" \
+        "URL_DEBIAN" \
+        "URL_EPEL" \
+        "URL_FEDORA" \
+        "URL_OPENSUSE" \
+        "URL_PYTHON" \
+        "URL_ROCKY" \
+        "URL_UBUNTU"
+    for spcd_step_edp__item in "${@}"; do
+        spcd_step_edp__name="SPCD_${spcd_step_edp__item}"
+        eval "spcd_step_edp__value=\${${spcd_step_edp__name}}"
+        if [ -n "${spcd_step_edp__value}" ]; then
+            spcd_os_printenv
+        fi
+    done
+}
+
+spcd_step__environment_defaults_set() {
     [ -n "${SPCD_CMD_SUM}" ] || SPCD_CMD_SUM="sha512sum"
 
     [ -n "${SPCD_DNS_1}" ] || SPCD_DNS_1="9.9.9.9"
@@ -1264,7 +1294,9 @@ ${SPCD_PYTHON_ALIAS} / ${spcd_stp__name}"
 spcd_main() {
     # environment
     spcd_step_in "Environment"
-    spcd_step__environment_defaults
+    spcd_step__environment_defaults_print
+    spcd_step__environment_defaults_set
+    spcd_step__environment_defaults_print
     spcd_step__environment_set_variables
     spcd_step__environment_list_workspace
     spcd_step_out