diff --git a/group_vars/all.yml b/group_vars/all.yml
new file mode 100644
index 0000000..ea13f30
--- /dev/null
+++ b/group_vars/all.yml
@@ -0,0 +1,4 @@
+---
+# globaly enably simple versionscheck - if available
+submodules_versioncheck: true
+
diff --git a/group_vars/thinkpad.yml b/group_vars/thinkpad.yml
index 9a2044f..cc3b798 100644
--- a/group_vars/thinkpad.yml
+++ b/group_vars/thinkpad.yml
@@ -1,4 +1,15 @@
 ---
+#
+# roles/dotfiles
+#
+# enable keychain as ssh agent
+dotfiles__additional_user_bashrc_lines: []
+  - eval $(keychain --eval --quiet id_ed25519)
+
+
+
+# legacy, maybe used
+
 # some ssh role parameters
 ssh_public_key_store: 'admin_ssh_keys'
 home_sweet_home: false
diff --git a/roles/dotfiles b/roles/dotfiles
index ce0a526..93a1f01 160000
--- a/roles/dotfiles
+++ b/roles/dotfiles
@@ -1 +1 @@
-Subproject commit ce0a526afdc587ca0549477e3bcdf7a32a72f62d
+Subproject commit 93a1f016c438ba9aa750af5f78f17354ea93c019