diff --git a/.forgejo/workflows/almalinux:8.yaml b/.forgejo/workflows/almalinux:8.yaml
index 7ca55e6..639180c 100644
--- a/.forgejo/workflows/almalinux:8.yaml
+++ b/.forgejo/workflows/almalinux:8.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/almalinux:9.yaml b/.forgejo/workflows/almalinux:9.yaml
index b39b2a2..6211ddd 100644
--- a/.forgejo/workflows/almalinux:9.yaml
+++ b/.forgejo/workflows/almalinux:9.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/alpine:3.18.yaml b/.forgejo/workflows/alpine:3.18.yaml
index 3fc3fa1..557e548 100644
--- a/.forgejo/workflows/alpine:3.18.yaml
+++ b/.forgejo/workflows/alpine:3.18.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/alpine:3.19.yaml b/.forgejo/workflows/alpine:3.19.yaml
index ad51687..41447cc 100644
--- a/.forgejo/workflows/alpine:3.19.yaml
+++ b/.forgejo/workflows/alpine:3.19.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml b/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml
index 5b097d7..648ff07 100644
--- a/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml
+++ b/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml b/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml
index e3bccb8..60cfd91 100644
--- a/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml
+++ b/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/debian:bullseye.yaml b/.forgejo/workflows/debian:bullseye.yaml
index 2f68dbe..2d7d210 100644
--- a/.forgejo/workflows/debian:bullseye.yaml
+++ b/.forgejo/workflows/debian:bullseye.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/fedora:39.yaml b/.forgejo/workflows/fedora:39.yaml
index 8f79067..6f45d95 100644
--- a/.forgejo/workflows/fedora:39.yaml
+++ b/.forgejo/workflows/fedora:39.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/fedora:40.yaml b/.forgejo/workflows/fedora:40.yaml
index c1860a4..61a6941 100644
--- a/.forgejo/workflows/fedora:40.yaml
+++ b/.forgejo/workflows/fedora:40.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/rockylinux:8.yaml b/.forgejo/workflows/rockylinux:8.yaml
index 6749f33..736cf28 100644
--- a/.forgejo/workflows/rockylinux:8.yaml
+++ b/.forgejo/workflows/rockylinux:8.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/rockylinux:9.yaml b/.forgejo/workflows/rockylinux:9.yaml
index f9c39ce..13e63a5 100644
--- a/.forgejo/workflows/rockylinux:9.yaml
+++ b/.forgejo/workflows/rockylinux:9.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/ubuntu:jammy.yaml b/.forgejo/workflows/ubuntu:jammy.yaml
index 163dc1d..84506a1 100644
--- a/.forgejo/workflows/ubuntu:jammy.yaml
+++ b/.forgejo/workflows/ubuntu:jammy.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.forgejo/workflows/ubuntu:noble.yaml b/.forgejo/workflows/ubuntu:noble.yaml
index 0dfeb56..91c710f 100644
--- a/.forgejo/workflows/ubuntu:noble.yaml
+++ b/.forgejo/workflows/ubuntu:noble.yaml
@@ -7,7 +7,7 @@ jobs:
     - name: cd
       env:
         CD: ${{secrets.cd}}
-      run: ${{vars.cd}} "${{vars.cd_ssh_hosts}}"
+      run: ${{vars.cd}} ${{vars.cd_ssh_hosts}}
 
     - run: cd-list-environment
     - run: cd-clone-branch
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3eaca49..8158f14 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
 image: debian:bookworm
 job:
   script:
-  - source ${CD} ${CD_SSH_HOSTS}
+  - source ${CD}
 
   - cd-list-environment
   - cd-clone-branch
diff --git a/cd.sh b/cd.sh
index 84e7dbc..f1f1ad3 100644
--- a/cd.sh
+++ b/cd.sh
@@ -5,9 +5,8 @@ CD_DEFAULT_DNS="\
 9.9.9.9 \
 "
 
-CD_PYTHON_MODULE="cd"
 CD_PYTHON_MODULES="\
-${CD_PYTHON_MODULE} \
+cd \
 rwx \
 "
 
@@ -36,8 +35,8 @@ cd_main () {
     # TODO move to Python
     cd_install_ssh
     cd_clean_packages_cache
-    cd_install_python_modules
-    cd_execute_python_module "${@}"
+    cd_install_python_modules ${CD_PYTHON_MODULES}
+    cd_execute_python_module ${CD_PYTHON_MODULES}
 }
 
 # steps
@@ -541,7 +540,7 @@ local url
     cd_step "Install Python modules"
     root="$(mktemp --directory)" || exit
     echo "${root}"
-    for repository in ${CD_PYTHON_MODULES} ; do
+    for repository in "${@}" ; do
         cd_split
         url="${CD_PROJECTS_URL}/${repository}"
         echo -n "\
@@ -572,9 +571,9 @@ local self
     echo -n "\
 ${self}
 ↓
-${CD_PYTHON_MODULE}
+${1}
 "
-    "${CD_PYTHON_ALIAS}" -m "${CD_PYTHON_MODULE}" "${@}"
+    "${CD_PYTHON_ALIAS}" -m "${1}" "${CD_STEP}" "${self}"
 }
 
 # functions
@@ -720,4 +719,4 @@ CD_PM_PACMAN="pacman"
 CD_SPLIT="─╌╌┄┄┈┈"
 
 # run
-cd_main
+cd_main "${@}"
diff --git a/cd/__init__.py b/cd/__init__.py
index 28b8c3b..b2cc47a 100644
--- a/cd/__init__.py
+++ b/cd/__init__.py
@@ -86,8 +86,8 @@ def install_commands(path):
         os.symlink(path, os.path.join(user, f'{COMMANDS_PREFIX}{command}'))
 
 
-def set_ssh(*arguments):
-    ssh_hosts = arguments[0]
+def set_ssh():
+    ssh_hosts = projects.environment.get('CD_SSH_HOSTS', None)
     ssh_key = projects.environment.get('CD', None)
     ssh_type = projects.environment.get('CD_SSH_TYPE', 'ed25519')
     #
diff --git a/cd/__main__.py b/cd/__main__.py
index d67667f..ba1ca17 100755
--- a/cd/__main__.py
+++ b/cd/__main__.py
@@ -10,7 +10,7 @@ if __name__ == '__main__':
     command, *arguments = sys.argv
     command = os.path.basename(command)
     if command == '__main__.py':
-        cd.set_ssh(*arguments)
+        cd.set_ssh()
         cd.install_commands(__file__)
     else:
         command = command.replace('-', '_')