diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index cee22ef..26aed02 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -366,7 +366,7 @@ SPCD_PM_ZYPPER="zypper"
 # │ step │ environment │
 # ╰──────┴─────────────╯
 
-spcd_environment_set_variables() {
+spcd_step__environment_set_variables() {
     spcd_step "Set variables"
     # check script first
     [ -n "${SPCD}" ] || spcd_error_ci "SPCD"
@@ -705,7 +705,7 @@ ${SPCD_PYTHON_VENV}/lib/${SPCD_PYTHON_COMMAND}/site-packages"
     spcd_os_printenv "SPCD_DL"
 }
 
-spcd_environment_list_workspace() {
+spcd_step__environment_list_workspace() {
     spcd_step "List workspace"
     spcd_lwd__path="$(realpath .)"
     spcd_os_ls "${spcd_lwd__path}"
@@ -804,7 +804,7 @@ spcd_query_package() {
 # │ step │ dns │
 # ╰──────┴─────╯
 
-spcd_dns() {
+spcd_step__dns() {
     spcd_step "DNS"
     while true; do
         spcd_sdr__index=$((spcd_sdr__index + 1))
@@ -821,7 +821,7 @@ nameserver ${spcd_sdr__value}
 # │ step │ packages │
 # ╰──────┴──────────╯
 
-spcd_packages_set_repositories() {
+spcd_step__packages_set_repositories() {
     spcd_step "Set repositories"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}")
@@ -888,7 +888,7 @@ deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-security main universe
     esac
 }
 
-spcd_packages_set_configuration() {
+spcd_step__packages_set_configuration() {
     spcd_step "Set configuration"
     case "${SPCD_PM}" in
     "${SPCD_PM_DNF}")
@@ -926,7 +926,7 @@ Dir::Etc::SourceParts \"\";
     esac
 }
 
-spcd_packages_trust_https() {
+spcd_step__packages_trust_https() {
     spcd_step "Trust HTTPS"
     if [ -n "${SPCD_CA_1}" ] || [ "${SPCD_PM}" = "${SPCD_PM_APT}" ]; then
         spcd_pth__path="$(spcd_https_path)"
@@ -954,7 +954,7 @@ SSLVerify = No
     fi
 }
 
-spcd_packages_update_catalog() {
+spcd_step__packages_update_catalog() {
     spcd_step "Update catalog"
     case "${SPCD_PM}" in
     "${SPCD_PM_APK}") apk update ;;
@@ -966,7 +966,7 @@ spcd_packages_update_catalog() {
     esac
 }
 
-spcd_packages_install_tools() {
+spcd_step__packages_install_tools() {
     spcd_step "Install tools"
     case "${SPCD_PM}" in
     "${SPCD_PM_APT}") spcd_install_package "apt-utils" ;;
@@ -978,12 +978,12 @@ spcd_packages_install_tools() {
 # │ step │ ca │
 # ╰──────┴────╯
 
-spcd_ca_install_package() {
+spcd_step__ca_install_package() {
     spcd_step "Install package"
     spcd_install_package "ca-certificates"
 }
 
-spcd_ca_write_certificates() {
+spcd_step__ca_write_certificates() {
     spcd_step "Write certificates"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}" | "${SPCD_OS_FEDORA}" | "${SPCD_OS_ROCKY}")
@@ -1012,7 +1012,7 @@ spcd_ca_write_certificates() {
     done
 }
 
-spcd_ca_update_certificates() {
+spcd_step__ca_update_certificates() {
     spcd_step "Update certificates"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ARCH}" | \
@@ -1035,13 +1035,13 @@ spcd_ca_update_certificates() {
 # │ step │ packages │
 # ╰──────┴──────────╯
 
-spcd_packages_verify_https() {
+spcd_step__packages_verify_https() {
     spcd_step "Verify HTTPS"
     spcd_pvh__path="$(spcd_https_path)"
     [ -n "${spcd_pvh__path}" ] && spcd_os_rm "${spcd_pvh__path}"
 }
 
-spcd_packages_upgrade_system() {
+spcd_step__packages_upgrade_system() {
     spcd_step "Upgrade system"
     case "${SPCD_PM}" in
     "${SPCD_PM_APK}") apk upgrade ;;
@@ -1053,12 +1053,12 @@ spcd_packages_upgrade_system() {
     esac
 }
 
-spcd_packages_install_dos2unix() {
+spcd_step__packages_install_dos2unix() {
     spcd_step "Install dos2unix"
     spcd_install_package "dos2unix"
 }
 
-spcd_packages_install_git() {
+spcd_step__packages_install_git() {
     spcd_step "Install Git"
     spcd_install_package "git"
 }
@@ -1067,7 +1067,7 @@ spcd_packages_install_git() {
 # │ step │ python │
 # ╰──────┴────────╯
 
-spcd_python_install() {
+spcd_step__python_install() {
     spcd_step "Install package"
     spcd_install_package "${SPCD_PYTHON_PACKAGE}"
     spcd_step "Link alias to command"
@@ -1094,7 +1094,7 @@ index-url = ${SPCD_URL_PYTHON}
     spcd_step_out
 }
 
-spcd_python_modules() {
+spcd_step__python_modules() {
     spcd_step_in "Modules"
     spcd_ipm__target="${SPCD_PYTHON_VENV_PACKAGES}"
     spcd_step "List"
@@ -1119,7 +1119,7 @@ spcd_python_modules() {
     spcd_step_out
 }
 
-spcd_install_packages() {
+spcd_step__install_packages() {
     spcd_step_in "OS packages"
     # epel
     spcd_step "EPEL"
@@ -1179,7 +1179,7 @@ spcd_install_packages() {
     spcd_step_out
 }
 
-spcd_python_write_module() {
+spcd_step__python_write_module() {
     spcd_step "Write module"
     for spcd_wpm__variable in \
         OS_ID OS_VERSION \
@@ -1199,7 +1199,7 @@ SPCD_STEP = ${spcd_wpm__index}
     done
 }
 
-spcd_python_switch() {
+spcd_step__python_switch() {
     spcd_step "Switch"
     spcd_stp__name="$(basename "${SPCD_GIT_MAIN}")"
     spcd_stp__path="$(realpath "${0}")"
@@ -1217,40 +1217,40 @@ ${SPCD_PYTHON_ALIAS} / ${spcd_stp__name}"
 spcd_main() {
     # environment
     spcd_step_in "Environment"
-    spcd_environment_set_variables
-    spcd_environment_list_workspace
+    spcd_step__environment_set_variables
+    spcd_step__environment_list_workspace
     spcd_step_out
     # dns
-    spcd_dns
+    spcd_step__dns
     # packages
     spcd_step_in "Packages"
-    spcd_packages_set_repositories
-    spcd_packages_set_configuration
-    spcd_packages_trust_https
-    spcd_packages_update_catalog
-    spcd_packages_install_tools
+    spcd_step__packages_set_repositories
+    spcd_step__packages_set_configuration
+    spcd_step__packages_trust_https
+    spcd_step__packages_update_catalog
+    spcd_step__packages_install_tools
     spcd_step_out
     # ca
     spcd_step_in "CA"
-    spcd_ca_install_package
-    spcd_ca_write_certificates
-    spcd_ca_update_certificates
+    spcd_step__ca_install_package
+    spcd_step__ca_write_certificates
+    spcd_step__ca_update_certificates
     spcd_step_out
     # packages
     spcd_step_in "Packages"
-    spcd_packages_verify_https
-    spcd_packages_update_catalog
-    spcd_packages_upgrade_system
-    spcd_packages_install_dos2unix
-    spcd_packages_install_git
+    spcd_step__packages_verify_https
+    spcd_step__packages_update_catalog
+    spcd_step__packages_upgrade_system
+    spcd_step__packages_install_dos2unix
+    spcd_step__packages_install_git
     spcd_step_out
     # python
     spcd_step_in "Python"
-    spcd_python_install
-    spcd_python_modules
-    spcd_install_packages
-    spcd_python_write_module
-    spcd_python_switch
+    spcd_step__python_install
+    spcd_step__python_modules
+    spcd_step__install_packages
+    spcd_step__python_write_module
+    spcd_step__python_switch
 }
 
 spcd_main