diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 93709b0..c2320ba 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -1046,13 +1046,13 @@ spcd_packages_install_tools() {
 # │ steps │ ca │
 # ╰───────┴────╯
 
-spcd_install_ca_certificates() {
-    spcd_step "Install CA"
+spcd_ca_install_package() {
+    spcd_step "Install package"
     spcd_install_package "${SPCD_PKG_CA}"
 }
 
-spcd_write_ca_certificates() {
-    spcd_step "Write CA certificates"
+spcd_ca_write_certificates() {
+    spcd_step "Write certificates"
     spcd_os_mkdir "${SPCD_CA_ROOT}"
     while true; do
         spcd_wcc__index=$((spcd_wcc__index + 1))
@@ -1065,8 +1065,8 @@ spcd_write_ca_certificates() {
     done
 }
 
-spcd_update_ca_certificates() {
-    spcd_step "Update CA certificates"
+spcd_ca_update_certificates() {
+    spcd_step "Update certificates"
     ${SPCD_CMD_CA}
 }
 
@@ -1224,10 +1224,11 @@ spcd_python_write_module() {
         spcd_wpm__text="${spcd_wpm__text}${spcd_wpm__value}
 "
     done
+    eval "spcd_wpm__index=\$((SPCD_STEP_${SPCD_STEP_LEVEL}_INDEX + 1))"
     for spcd_wpm__root in \
         "${SPCD_PYTHON_PACKAGES}" "${SPCD_PYTHON_VENV_PACKAGES}"; do
         spcd_os_write "${spcd_wpm__root}/env.py" "${spcd_wpm__text}
-SPCD_STEP = $((SPCD_STEP + 1))
+SPCD_STEP = ${spcd_wpm__index}
 "
     done
 }
@@ -1265,9 +1266,11 @@ spcd_main() {
     spcd_packages_install_tools
     spcd_step_out
     # ca
-    spcd_install_ca_certificates
-    spcd_write_ca_certificates
-    spcd_update_ca_certificates
+    spcd_step_in "CA"
+    spcd_ca_install_package
+    spcd_ca_write_certificates
+    spcd_ca_update_certificates
+    spcd_step_out
     # packages
     spcd_step_in "Packages"
     spcd_packages_verify_https