diff --git a/rhel8/packages.md b/rhel8/packages.md
index 29e77fc1..614a0b93 100644
--- a/rhel8/packages.md
+++ b/rhel8/packages.md
@@ -30,7 +30,7 @@ base::pkg_group::java:
     - 'java-17-openjdk'
 
 base::package_groups:
-  - 'java'
+    - 'java'
 ```
 
 ### Install a Group of Packages
@@ -56,16 +56,6 @@ base::pkg_group::java:
 ### Install Packages only on Given OS Version
 
 **to be implemented**
-
-Certain packages are only used on a given OS Version, so a `=` with the OS name and the major version selects a package only for given OS, where as a `-` will filter away given package on hosts with given OS, so they are not installed there.
-
-```
-base::pkg_group::java:
-    - 'java-1.8.0-openjdk:=redhat7'
-    - 'java-11-openjdk'
-    - 'java-17-openjdk:-redhat7'
-```
- **possible alternative**
  
  Certain packages are only used on a given OS Version, so a `os=` with the OS name and the major version selects a package only for given OS, where as a `os!` will filter away given package on hosts with given OS, so they are not installed there.
 
@@ -114,7 +104,7 @@ The default list (except for nodes with the `bootpc` and `appliances::lenovo::*`
 If repositories are managed in Hiera, feel free to add them to `rpm_repos::default` like
 ```
 rpm_repos::default:
-  - 'gfa'
+    - 'gfa'
 ```
 
 Note that repositories for different versions of RHEL can be added and only the fitting ones will be configured on the node.
@@ -127,15 +117,15 @@ An individual package repository is configured in Hiera within the namespace `rp
 
 ```
 rpm_repos::repo::epel_rhel8:
-  name: 'epel'
-  descr: "Extra Packages for Enterprise Linux 8"
-  baseurl: 'https://repo01.psi.ch/el8/tags/$pli_repo_tag/epel/'
-  gpgkey: 'https://repo01.psi.ch/el8/keys/RPM-GPG-KEY-EPEL-8'
-  disable: false
-  gpgcheck: true
-  osversion: 8
-  exclude:
-    - "slurm*"
+    name: 'epel'
+    descr: "Extra Packages for Enterprise Linux 8"
+    baseurl: 'https://repo01.psi.ch/el8/tags/$pli_repo_tag/epel/'
+    gpgkey: 'https://repo01.psi.ch/el8/keys/RPM-GPG-KEY-EPEL-8'
+    disable: false
+    gpgcheck: true
+    osversion: 8
+    exclude:
+        - "slurm*"
 ```
 
 The legacy namespace `yum_client::repo::*` is currently used for RHEL7 repositories to be backward compatible as some Hiera configuration with higher precedence overwrites certain stuff.
@@ -177,8 +167,8 @@ The tags are different per major OS version and are definied in the Hiera hash `
 yum_client::repo_tag: 'prod'
 
 rpm_repos::tag:
-  redhat7: "%{lookup('yum_client::repo_tag')}"
-  redhat8: 'rhel-8'
+    redhat7: "%{lookup('yum_client::repo_tag')}"
+    redhat8: 'rhel-8'
 ```
 
 So for RHEL 7 the default is `prod` and can be overriden on `yum_client::repo_tag` (backwards compatibility) or on the `redhat7` attribute of `rpm_repos::tag`.