diff --git a/.forgejo/workflows/debian:bookworm.yaml b/.forgejo/workflows/debian:bookworm.yaml
index 776457b..976d9ae 100644
--- a/.forgejo/workflows/debian:bookworm.yaml
+++ b/.forgejo/workflows/debian:bookworm.yaml
@@ -13,4 +13,4 @@ jobs:
     - run: cd-clone-branch
     - run: cd-build-project
     - run: cd-browse-workspace
-    - run: cd-synchronize
+    - run: cd-synchronize out
diff --git a/cd/__init__.py b/cd/__init__.py
index b2cc47a..ac39077 100644
--- a/cd/__init__.py
+++ b/cd/__init__.py
@@ -55,24 +55,6 @@ def cd_list_environment():
         print(variable, '=', value)
 
 
-def cd_synchronize():
-    sync_host = 'rwx.work'
-    sync_source = 'out'
-    sync_user = 'cd'
-    #
-    sync_root = f'/{sync_user}/{project.branch}/{project.name}'
-    #
-    sync_target = f'{sync_user}@{sync_host}:{sync_root}'
-    ps.run('rsync',
-        '--archive',
-        '--delete-before',
-        '--verbose',
-        f'{sync_source}/',
-        f'{sync_target}/',
-        '--dry-run',
-    )
-
-
 def install_commands(path):
     user = '/usr/local/bin'
     for command in [
@@ -80,7 +62,6 @@ def install_commands(path):
         'build-project',
         'clone-branch',
         'list-environment',
-        'synchronize',
     ]:
         print(command)
         os.symlink(path, os.path.join(user, f'{COMMANDS_PREFIX}{command}'))
diff --git a/cmd/cd-synchronize.sh b/cmd/cd-synchronize.sh
new file mode 100755
index 0000000..437df02
--- /dev/null
+++ b/cmd/cd-synchronize.sh
@@ -0,0 +1,23 @@
+[ "${1}" ] && SYNC_SOURCE="${1}" || exit
+
+SYNC_USER='cd'
+
+[ "${GITHUB_SERVER_URL}" ] \
+&& SYNC_HOST="$(basename ${GITHUB_SERVER_URL})" || exit
+
+[ "${SYNC_USER}" ] \
+&& SYNC_ROOT="/${SYNC_USER}" || exit
+[ "${GITHUB_REF_NAME}" ] \
+&& SYNC_ROOT="${SYNC_ROOT}/${GITHUB_REF_NAME}" || exit
+[ "${GITHUB_REPOSITORY}" ] \
+&& SYNC_ROOT="${SYNC_ROOT}/${GITHUB_REPOSITORY}" || exit
+
+SYNC_TARGET="${SYNC_USER}@${SYNC_HOST}:${SYNC_ROOT}"
+[ "${2}" ] && SYNC_TARGET="${SYNC_TARGET}/${2}"
+
+rsync \
+--archive \
+--delete-before \
+--verbose \
+"${SYNC_SOURCE}/" \
+"${SYNC_TARGET}/"
diff --git a/readme.md b/readme.md
index ebec849..2492ead 100644
--- a/readme.md
+++ b/readme.md
@@ -69,7 +69,6 @@ from various CA, CI, OCI / OS.
 
 * write bats
 
-* detect private key type
 * handle git cloning credentials
 * reduce single conditions with &&
 * write Python bootstrap process