diff --git a/README.md b/README.md
index 3d55992..42a8143 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,9 @@ fetch git repositories.
 
 none
 
+## Remarks
+if you install r10k with the gem provider (default for RedHat family) 
+you need to ensure that you have ruby-devel (or ruby-dev) package installed.
 
 ## Contributing
 
diff --git a/data/RedHat-family.yaml b/data/RedHat-family.yaml
new file mode 100644
index 0000000..60693d9
--- /dev/null
+++ b/data/RedHat-family.yaml
@@ -0,0 +1,13 @@
+---
+# r10k setting for RedHat os family
+
+# there are no packages available, so we install from gem
+
+r10k::package_options:
+  provider: 'gem'
+
+r10k::configdir: '/etc/puppetlabs/r10k'
+r10k::home: '/etc/puppetlabs/r10k'
+
+# since /usr/local/bin is not in path
+r10k::r10k_command: '/usr/local/bin/r10k'
diff --git a/manifests/init.pp b/manifests/init.pp
index b0feaa3..2db7b9f 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -4,6 +4,8 @@
 # @param configdir
 #   where the configfile should be put
 #   defaults to '/etc/puppet'
+# @param ensure_configdir
+#   set this to true to ensure the config direcory exists
 # @param cachedir
 #   The 'cachedir' setting controls where cached content, such as mirrored Git
 #   repositories, are stored on the local machine. This location should be
@@ -89,6 +91,12 @@
     }
   }
 
+  if $ensure_configdir {
+    file { $configdir:
+      ensure => 'directory',
+    }
+  }
+
   ensure_packages($packages, { 'ensure' => $package_ensure } + $package_options)
 
   file { "${configdir}/r10k.yaml":
diff --git a/metadata.json b/metadata.json
index 42a8ee2..bf806a3 100644
--- a/metadata.json
+++ b/metadata.json
@@ -22,7 +22,26 @@
       ]
     },
     {
-      "operatingsystem": "Ubuntu"
+      "operatingsystem": "Ubuntu",
+      "operatingsystemrelease": [
+        "20.04",
+        "22.04"
+      ]
+    },
+    {
+      "operatingsystem": "RedHat",
+      "operatingsystemrelease": [
+        "7",
+        "8",
+        "9"
+      ]
+    },
+    {
+      "operatingsystem": "AlmaLinux",
+      "operatingsystemrelease": [
+        "8",
+        "9"
+      ]
     }
   ],
   "requirements": [