diff --git a/README.md b/README.md
index 54dbf97..7136cd0 100644
--- a/README.md
+++ b/README.md
@@ -291,6 +291,59 @@ sudo pacman -S systray-x-minimal
 ```
 
 
+### CentOS
+
+#### Repository
+
+Installing the repository:
+
+###### 8 Stream
+
+```bash
+yum-config-manager --add-repo=https://download.opensuse.org/repositories/home:/Ximi1970:/Mozilla:/Add-ons/CentOS_8_Stream/home:Ximi1970:Mozilla:Add-ons.repo
+sudo yum update
+```
+
+###### 8
+
+```bash
+yum-config-manager --add-repo=https://download.opensuse.org/repositories/home:/Ximi1970:/Mozilla:/Add-ons/CentOS_8/home:Ximi1970:Mozilla:Add-ons.repo
+sudo yum update
+```
+
+###### 7
+
+```bash
+yum-config-manager --add-repo=https://download.opensuse.org/repositories/home:/Ximi1970:/Mozilla:/Add-ons/CentOS_7/home:Ximi1970:Mozilla:Add-ons.repo
+sudo yum update
+```
+
+#### Package
+
+Installing the SysTray-X addon and companion app package:
+
+###### KDE
+
+```bash
+sudo yum install systray-x-minimal
+```
+or
+```bash
+sudo yum install epel-release
+sudo yum install systray-x
+```
+
+
+###### GNOME
+
+```bash
+sudo yum install systray-x-gnome
+sudo yum install gnome-tweaks
+```
+Please use `Tweaks` to activate the gnome shell extension `Kstatusnotifieritem/appindicator support` or reboot the system.
+
+
+
 ## Binaries (User)
 
 User installable package.  
diff --git a/create_linux_gnome_installers.sh b/create_linux_gnome_installers.sh
index a4423ab..7f01a67 100755
--- a/create_linux_gnome_installers.sh
+++ b/create_linux_gnome_installers.sh
@@ -46,6 +46,15 @@ OBS_RPM_GNOME_EXT+="master "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
 OBS_RPM_GNOME_EXT+="master "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_GNOME_EXT+="v26 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_GNOME_EXT+="master "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
+OBS_RPM_GNOME_EXT+="master "
 
 
 OBS_DEB_ARCHS=""
diff --git a/create_linux_kde_installers.sh b/create_linux_kde_installers.sh
index 80b6014..8982d88 100755
--- a/create_linux_kde_installers.sh
+++ b/create_linux_kde_installers.sh
@@ -33,6 +33,12 @@ OBS_RPM_ARCHS+="Fedora_32/x86_64 "
 OBS_RPM_PKS+="fed32 "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
 
 
 OBS_DEB_ARCHS=""
diff --git a/create_linux_minimal_installers.sh b/create_linux_minimal_installers.sh
index 6220a9d..2db0a85 100755
--- a/create_linux_minimal_installers.sh
+++ b/create_linux_minimal_installers.sh
@@ -33,6 +33,12 @@ OBS_RPM_ARCHS+="Fedora_32/x86_64 "
 OBS_RPM_PKS+="fed32 "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
 
 
 OBS_DEB_ARCHS=""
diff --git a/create_linux_staging_gnome_installers.sh b/create_linux_staging_gnome_installers.sh
index a8d8989..6812dc0 100755
--- a/create_linux_staging_gnome_installers.sh
+++ b/create_linux_staging_gnome_installers.sh
@@ -46,6 +46,15 @@ OBS_RPM_GNOME_EXT+="master "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
 OBS_RPM_GNOME_EXT+="master "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_GNOME_EXT+="v26 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_GNOME_EXT+="master "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
+OBS_RPM_GNOME_EXT+="master "
 
 
 OBS_DEB_ARCHS=""
diff --git a/create_linux_staging_kde_installers.sh b/create_linux_staging_kde_installers.sh
index 786ed05..0a9d57b 100755
--- a/create_linux_staging_kde_installers.sh
+++ b/create_linux_staging_kde_installers.sh
@@ -33,6 +33,12 @@ OBS_RPM_ARCHS+="Fedora_32/x86_64 "
 OBS_RPM_PKS+="fed32 "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
 
 
 OBS_DEB_ARCHS=""
diff --git a/create_linux_staging_minimal_installers.sh b/create_linux_staging_minimal_installers.sh
index 74bf78e..5aa0fbb 100755
--- a/create_linux_staging_minimal_installers.sh
+++ b/create_linux_staging_minimal_installers.sh
@@ -33,6 +33,12 @@ OBS_RPM_ARCHS+="Fedora_32/x86_64 "
 OBS_RPM_PKS+="fed32 "
 OBS_RPM_ARCHS+="Fedora_33/x86_64 "
 OBS_RPM_PKS+="fed33 "
+OBS_RPM_ARCHS+="CentOS_7/x86_64 "
+OBS_RPM_PKS+="el7 "
+OBS_RPM_ARCHS+="CentOS_8/x86_64 "
+OBS_RPM_PKS+="el8 "
+OBS_RPM_ARCHS+="CentOS_8_Stream/x86_64 "
+OBS_RPM_PKS+="el8s "
 
 
 OBS_DEB_ARCHS=""
diff --git a/dist/install.CentOS_7-Gnome.sh b/dist/install.CentOS_7-Gnome.sh
new file mode 100644
index 0000000..78aad6e
--- /dev/null
+++ b/dist/install.CentOS_7-Gnome.sh
@@ -0,0 +1,59 @@
+enableGnomeExtension() {
+    EXTENSION="appindicatorsupport@rgcjonas.gmail.com"
+    PACKAGE="gnome-shell-extension-appindicator"
+    ENABLE_CMD="/usr/bin/gnome-extensions"
+    ENABLE_CMD_OPTIONS="enable ${EXTENSION}"
+
+    #
+    #   Is the extension installed?
+    #
+    if [ -d /usr/share/gnome-shell/extensions/${EXTENSION} ] || [ -d ~/.local/share/gnome-shell/extensions/${EXTENSION} ] ; then
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    else
+        mkdir -p ~/.local/share/gnome-shell/extensions
+        tar -C ~/.local/share/gnome-shell/extensions -xJf ${DESTINATION}/gnome-shell-extension.tar.xz
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    fi
+    
+    echo
+    echo "Please logout and login to activate the gnome shell extension"
+    echo
+}
+
+#
+#   Enable the gnome shell extension for the local user
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+    enableGnomeExtension
+
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "sudo yum install qt5-qtbase-gui"
+        echo
+    fi
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_7-Kde.sh b/dist/install.CentOS_7-Kde.sh
new file mode 100644
index 0000000..dffcb8d
--- /dev/null
+++ b/dist/install.CentOS_7-Kde.sh
@@ -0,0 +1,41 @@
+##
+#   Check for Kde
+#
+if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "sudo yum install qt5-qtbase-gui"
+        echo
+    fi
+
+    yum list installed "kf5*" | grep -q kf5-knotifications
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package kf5-knotifications from the EPEL repo"
+        echo
+        echo "sudo yum install epel-release"
+        echo "sudo yum install kf5-knotifications"
+        echo
+    fi
+else
+    #
+    #   Check for Gnome
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+        echo
+        echo "Please use the __GNOME_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_7.sh b/dist/install.CentOS_7.sh
new file mode 100644
index 0000000..8908b3a
--- /dev/null
+++ b/dist/install.CentOS_7.sh
@@ -0,0 +1,31 @@
+#
+#   Check for Gnome
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+      echo
+      echo "Please use the __GNOME_INSTALLER__ installer."
+      echo "This setup will not work."
+      echo
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        #
+        # Check for Qt
+        #
+        yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+        if [ "$?" == "1" ] ; then
+            echo
+            echo "Please install the package qt5-qtbase-gui"
+            echo
+            echo "yum install qt5-qtbase-gui"
+            echo
+        fi
+    fi
+fi
diff --git a/dist/install.CentOS_8-Gnome.sh b/dist/install.CentOS_8-Gnome.sh
new file mode 100644
index 0000000..78aad6e
--- /dev/null
+++ b/dist/install.CentOS_8-Gnome.sh
@@ -0,0 +1,59 @@
+enableGnomeExtension() {
+    EXTENSION="appindicatorsupport@rgcjonas.gmail.com"
+    PACKAGE="gnome-shell-extension-appindicator"
+    ENABLE_CMD="/usr/bin/gnome-extensions"
+    ENABLE_CMD_OPTIONS="enable ${EXTENSION}"
+
+    #
+    #   Is the extension installed?
+    #
+    if [ -d /usr/share/gnome-shell/extensions/${EXTENSION} ] || [ -d ~/.local/share/gnome-shell/extensions/${EXTENSION} ] ; then
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    else
+        mkdir -p ~/.local/share/gnome-shell/extensions
+        tar -C ~/.local/share/gnome-shell/extensions -xJf ${DESTINATION}/gnome-shell-extension.tar.xz
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    fi
+    
+    echo
+    echo "Please logout and login to activate the gnome shell extension"
+    echo
+}
+
+#
+#   Enable the gnome shell extension for the local user
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+    enableGnomeExtension
+
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "sudo yum install qt5-qtbase-gui"
+        echo
+    fi
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_8-Kde.sh b/dist/install.CentOS_8-Kde.sh
new file mode 100644
index 0000000..dffcb8d
--- /dev/null
+++ b/dist/install.CentOS_8-Kde.sh
@@ -0,0 +1,41 @@
+##
+#   Check for Kde
+#
+if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "sudo yum install qt5-qtbase-gui"
+        echo
+    fi
+
+    yum list installed "kf5*" | grep -q kf5-knotifications
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package kf5-knotifications from the EPEL repo"
+        echo
+        echo "sudo yum install epel-release"
+        echo "sudo yum install kf5-knotifications"
+        echo
+    fi
+else
+    #
+    #   Check for Gnome
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+        echo
+        echo "Please use the __GNOME_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_8.sh b/dist/install.CentOS_8.sh
new file mode 100644
index 0000000..d4a88d0
--- /dev/null
+++ b/dist/install.CentOS_8.sh
@@ -0,0 +1,31 @@
+#
+#   Check for Gnome
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+      echo
+      echo "Please use the __GNOME_INSTALLER__ installer."
+      echo "This setup will not work."
+      echo
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        #
+        # Check for Qt
+        #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+        if [ "$?" == "1" ] ; then
+            echo
+            echo "Please install the package qt5-qtbase-gui"
+            echo
+            echo "sudo yum install qt5-qtbase-gui"
+            echo
+        fi
+    fi
+fi
diff --git a/dist/install.CentOS_8_Stream-Gnome.sh b/dist/install.CentOS_8_Stream-Gnome.sh
new file mode 100644
index 0000000..da0ea8b
--- /dev/null
+++ b/dist/install.CentOS_8_Stream-Gnome.sh
@@ -0,0 +1,59 @@
+enableGnomeExtension() {
+    EXTENSION="appindicatorsupport@rgcjonas.gmail.com"
+    PACKAGE="gnome-shell-extension-appindicator"
+    ENABLE_CMD="/usr/bin/gnome-extensions"
+    ENABLE_CMD_OPTIONS="enable ${EXTENSION}"
+
+    #
+    #   Is the extension installed?
+    #
+    if [ -d /usr/share/gnome-shell/extensions/${EXTENSION} ] || [ -d ~/.local/share/gnome-shell/extensions/${EXTENSION} ] ; then
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    else
+        mkdir -p ~/.local/share/gnome-shell/extensions
+        tar -C ~/.local/share/gnome-shell/extensions -xJf ${DESTINATION}/gnome-shell-extension.tar.xz
+        if [ -x $ENABLE_CMD ] ; then
+            $ENABLE_CMD $ENABLE_CMD_OPTIONS
+        fi
+    fi
+    
+    echo
+    echo "Please logout and login to activate the gnome shell extension"
+    echo
+}
+
+#
+#   Enable the gnome shell extension for the local user
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+    enableGnomeExtension
+
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "yum install qt5-qtbase-gui"
+        echo
+    fi
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_8_Stream-Kde.sh b/dist/install.CentOS_8_Stream-Kde.sh
new file mode 100644
index 0000000..47cefa8
--- /dev/null
+++ b/dist/install.CentOS_8_Stream-Kde.sh
@@ -0,0 +1,41 @@
+##
+#   Check for Kde
+#
+if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+    #
+    # Check for Qt
+    #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package qt5-qtbase-gui"
+        echo
+        echo "sudo dnf install qt5-qtbase-gui"
+        echo
+    fi
+
+    yum list installed "kf5*" | grep -q kf5-knotifications
+    if [ "$?" == "1" ] ; then
+        echo
+        echo "Please install the package kf5-knotifications from the EPEL repo"
+        echo
+        echo "sudo yum install epel-release"
+        echo "sudo yum install kf5-knotifications"
+        echo
+    fi
+else
+    #
+    #   Check for Gnome
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+        echo
+        echo "Please use the __GNOME_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        echo
+        echo "Please use the __MINIMAL_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    fi
+fi
diff --git a/dist/install.CentOS_8_Stream.sh b/dist/install.CentOS_8_Stream.sh
new file mode 100644
index 0000000..d4a88d0
--- /dev/null
+++ b/dist/install.CentOS_8_Stream.sh
@@ -0,0 +1,31 @@
+#
+#   Check for Gnome
+#
+if [ "$XDG_CURRENT_DESKTOP" == "GNOME" ] ; then
+      echo
+      echo "Please use the __GNOME_INSTALLER__ installer."
+      echo "This setup will not work."
+      echo
+else
+    #
+    #   Check for KDE
+    #
+    if [ "$XDG_CURRENT_DESKTOP" == "KDE" ] ; then
+        echo
+        echo "Please use the __KDE_INSTALLER__ installer."
+        echo "This setup will not work."
+        echo
+    else
+        #
+        # Check for Qt
+        #
+    yum list installed "qt5-qtbase*" | grep -q qt5-qtbase-gui
+        if [ "$?" == "1" ] ; then
+            echo
+            echo "Please install the package qt5-qtbase-gui"
+            echo
+            echo "sudo yum install qt5-qtbase-gui"
+            echo
+        fi
+    fi
+fi