diff --git a/.mrconfig b/.mrconfig
index 7416d0a79c..c6c339ab34 100644
--- a/.mrconfig
+++ b/.mrconfig
@@ -9,9 +9,10 @@ checkout = git clone git@github.com:EGroupware/ADOdb.git
 [api/js/ckeditor]
 checkout = svn checkout https://github.com/EGroupware/ckeditor-dev/branches/trunk/dev/builder/release/ckeditor
 
-#[vendor]
+[]
 # to run composer.phar automatic, this .mrconfig need to be trusted by adding it to ~/.mrtrust
-#checkout = composer.phar install
+checkout = /usr/bin/env composer.phar install
+update = /usr/bin/env composer.phar install
 
 ###
 ### Optional apps you can enable by uncommenting them and (re-)run: mr up
diff --git a/README.md b/README.md
index add5464c78..f58392f49c 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,8 @@
 * git clone git@github.com:EGroupware/egroupware.git
 * cd egroupware
 * # install composer.phar from https://getcomposer.org/download/
-* composer.phar install
-* # install myrepos (mr) from https://myrepos.branchable.com/ or your distrbution package
+* # install myrepos (mr) from https://myrepos.branchable.com/ or your distribution package manager
+* # add a line /path/to/egroupware/.mrconfig to your ~/.mrtrust, to allow running composer.phar and git clone -b 16.1
 * mr up
 * # enable further / non-default EGroupware apps be uncommenting them in .mrconfig and run mr up
 * continue installation at http://localhost/egroupware/setup/