diff --git a/cd.sh b/cd.sh
index 9039eb9..ea77f6d 100644
--- a/cd.sh
+++ b/cd.sh
@@ -1,17 +1,11 @@
 #! /usr/bin/env sh
 
-[ "${CD_DNS}" ] || CD_DNS="\
-9.9.9.9 \
-"
-CD_PYTHON_MODULES="\
-cd \
-rwx \
-"
+set "cd" "rwx"
 
-# steps
 cd_main () {
     cd_set_environment
-    cd_set_dns_resolving ${CD_DNS}
+    cd_set_dns_resolving \
+    "9.9.9.9"
     cd_set_packages_repositories
     cd_set_packages_configuration
     cd_set_https_verification_off
@@ -26,38 +20,28 @@ cd_main () {
     cd_install_git
     cd_install_python
     cd_clean_packages_cache
-    cd_install_python_modules ${CD_PYTHON_MODULES}
-    cd_execute_python_module ${CD_PYTHON_MODULES}
+    cd_install_python_modules "${@}"
+    cd_execute_python_module "${@}"
 }
 
-# functions
+#
 
 cd_set_environment () {
     cd_step "Set environment"
-    #
     CD_DNS_FILE="/etc/resolv.conf"
-    CD_GIT_PACKAGE="git"
-    CD_PYTHON_COMMAND="python3"
     #
     case "${CD_OS_NAME}" in
         "debian")
-            CD_PYTHON_PACKAGE="python3"
+            CD_PYTHON_COMMAND="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
             case "${CD_OS_VERSION}" in
-                "bookworm") echo "TODO" ;;
-                *) cd_error_os "CD_OS_VERSION" ;;
-            esac
-        ;;
-        "alma")
-            case "${CD_OS_VERSION}" in
-                "8")
-                    CD_PYTHON_PACKAGE="python3.11"
-                    CD_PYTHON_PACKAGES="/usr/lib64/python3.11/site-packages"
+                "bookworm")
+                    echo "TODO"
                 ;;
-                *) cd_error_os "CD_OS_VERSION" ;;
+                *) cd_error_os "CD_OS_VERSION=" ;;
             esac
         ;;
-        *) cd_error_os "CD_OS_NAME" ;;
+        *) cd_error_os "CD_OS_NAME=" ;;
     esac
     # ci / github
     if [ "${GITHUB_ACTIONS}" ] ; then
@@ -127,7 +111,6 @@ deb https://deb.debian.org/debian-security bookworm-security main
 "
             cd_cat "/etc/apt/sources.list"
         ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_set_packages_repositories" ;;
     esac
 }
@@ -146,7 +129,6 @@ Dir::Etc::SourceParts \"\";
 "
             cd_cat "/etc/apt/apt.conf.d/apt.conf"
         ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_set_packages_configuration" ;;
     esac
 }
@@ -160,7 +142,6 @@ Acquire::https::Verify-Peer False;
 "
             cd_cat "/etc/apt/apt.conf.d/https"
         ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_set_https_verification_off" ;;
     esac
 }
@@ -169,7 +150,6 @@ cd_update_packages_catalog () {
     cd_step "Update packages catalog"
     case "${CD_OS_NAME}" in
         "debian") apt-get update || exit ;;
-        "alma") dnf makecache || exit ;;
         *) cd_error_os "cd_update_packages_catalog" ;;
     esac
 }
@@ -178,7 +158,6 @@ cd_install_packages_tools () {
     cd_step "Install packages tools"
     case "${CD_OS_NAME}" in
         "debian") cd_install_package "apt-utils" ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_install_packages_tools" ;;
     esac
 }
@@ -187,7 +166,6 @@ cd_install_ca () {
     cd_step "Install CA"
     case "${CD_OS_NAME}" in
         "debian") cd_install_package "ca-certificates" ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_install_ca" ;;
     esac
 }
@@ -197,7 +175,6 @@ local target
     cd_step "Copy CA"
     case "${CD_OS_NAME}" in
         "debian") target="/usr/local/share/ca-certificates" ;;
-        "alma") target="/etc/pki/ca-trust/source/anchors" ;;
         *) cd_error_os "cd_copy_ca" ;;
     esac
     # TODO copy
@@ -207,7 +184,6 @@ cd_update_ca () {
     cd_step "Update CA"
     case "${CD_OS_NAME}" in
         "debian") update-ca-certificates || exit ;;
-        "alma") update-ca-trust || exit ;;
         *) cd_error_os "cd_update_ca" ;;
     esac
 }
@@ -216,7 +192,6 @@ cd_set_https_verification_on () {
     cd_step "Set HTTPS verification on"
     case "${CD_OS_NAME}" in
         "debian") cd_rm "/etc/apt/apt.conf.d/https" ;;
-        "alma") echo "TODO" ;;
         *) cd_error_os "cd_set_https_verification_on" ;;
     esac
 }
@@ -224,27 +199,31 @@ cd_set_https_verification_on () {
 cd_upgrade_packages () {
     cd_step "Upgrade packages"
     case "${CD_OS_NAME}" in
-        "debian") apt-get upgrade --assume-yes || exit ;;
-        "alma") dnf upgrade --assumeyes || exit ;;
+        "debian") apt-get upgrade --yes || exit ;;
         *) cd_error_os "cd_upgrade_packages" ;;
     esac
 }
 
 cd_install_git () {
     cd_step "Install Git"
-    cd_install_package "${CD_GIT_PACKAGE}"
+    case "${CD_OS_NAME}" in
+        "debian") cd_install_package "git" ;;
+        *) cd_error_os "cd_install_git" ;;
+    esac
 }
 
 cd_install_python () {
     cd_step "Install Python"
-    cd_install_package "${CD_PYTHON_PACKAGE}" ;;
+    case "${CD_OS_NAME}" in
+        "debian") cd_install_package "python3" ;;
+        *) cd_error_os "cd_install_python" ;;
+    esac
 }
 
 cd_clean_packages_cache () {
     cd_step "Clean packages cache"
     case "${CD_OS_NAME}" in
         "debian") apt-get clean || exit ;;
-        "alma") dnf clean all || exit ;;
         *) cd_error_os "cd_clean_packages_cache" ;;
     esac
 }
@@ -291,11 +270,11 @@ ${1}
     "${CD_PYTHON_COMMAND}" -m "${1}" "${CD_STEP}" "${self}"
 }
 
-# tools
+#
 
 cd_cat () {
     if [ -f "${1}" ] ; then
-        echo "╭$(realpath "${1}")"
+        echo "⋅$(realpath "${1}")"
         cat "${1}" || exit
     fi
 }
@@ -312,8 +291,7 @@ cd_error_os () {
 cd_install_package () {
     if [ "${1}" ] ; then
         case "${CD_OS_NAME}" in
-            "debian") apt-get install --assume-yes "${1}" || exit ;;
-            "alma") dnf install --assumeyes "${1}" || exit ;;
+            "debian") apt-get install --yes "${1}" || exit ;;
             *) exit 1 ;;
         esac
     fi
@@ -329,7 +307,7 @@ cd_rm () {
 cd_step () {
     if [ "${1}" ] ; then
         CD_STEP=$((CD_STEP+1))
-        echo -n "\
+        echo "\
 ╭─╌┄┈
 │ ${CD_STEP} ${1}
 ╰─╌┄┈
@@ -347,5 +325,6 @@ local text="${2}"
     fi
 }
 
-# main
-cd_main
+#
+
+cd_main "${@}"
diff --git a/readme.md b/readme.md
deleted file mode 100644
index 95f9c4b..0000000
--- a/readme.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# Continuous Deployment
-
-## Features
-
-* [ ] detect
-  * [ ] OS name
-  * [ ] OS version
-* [X] handle CI platforms
-  * [X] ForgeJo / Gitea / GitHub
-  * [X] GitLab
-
-## Tasks
-
-* use constants for OS names