diff --git a/demo1-getting-started.py b/demo1-getting-started.py
index d7ef9cb..c07183f 100644
--- a/demo1-getting-started.py
+++ b/demo1-getting-started.py
@@ -32,8 +32,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
 
 # default region
 region_name = 'RegionOne'
diff --git a/demo2-instance-with-init-script.py b/demo2-instance-with-init-script.py
index d7f7cc9..ae27c11 100644
--- a/demo2-instance-with-init-script.py
+++ b/demo2-instance-with-init-script.py
@@ -20,8 +20,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
@@ -144,8 +144,12 @@ def main():
     #
     ###########################################################################
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -i messaging -r api -r worker -r demo
     '''
 
diff --git a/demo3-microservice.py b/demo3-microservice.py
index d54cda7..9d4a1aa 100644
--- a/demo3-microservice.py
+++ b/demo3-microservice.py
@@ -24,8 +24,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
@@ -171,8 +171,12 @@ def main():
     #
     # Thanks to Stefan Friedmann for finding this fix ;)
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i messaging -i faafo -r api
     rabbitmqctl add_user faafo guest
     rabbitmqctl set_user_tags faafo administrator
@@ -231,7 +235,7 @@ def main():
     ###########################################################################
 
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(ip_controller)s' -m 'amqp://faafo:guest@%(ip_controller)s:5672/'
     ''' % {'ip_controller': ip_controller}
 
diff --git a/demo4-scale-out-add-worker.py b/demo4-scale-out-add-worker.py
index d092b59..9add7bd 100644
--- a/demo4-scale-out-add-worker.py
+++ b/demo4-scale-out-add-worker.py
@@ -26,8 +26,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
@@ -167,13 +167,17 @@ def main():
     #
     ###########################################################################
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata_worker = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
 
     # userdata-api-2 = '''#!/usr/bin/env bash
-    # curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    # curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
     #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
 
@@ -185,6 +189,7 @@ def main():
                                          ex_userdata=userdata_worker,
                                          ex_security_groups=[worker_security_group])
 
+    print(instance_worker_3)
 
 if __name__ == '__main__':
     main()
diff --git a/demo4-scale-out.py b/demo4-scale-out.py
index 4e60d1a..56a189d 100644
--- a/demo4-scale-out.py
+++ b/demo4-scale-out.py
@@ -26,8 +26,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
@@ -232,8 +232,12 @@ def main():
     #
     # Thanks to Stefan Friedmann for finding this fix ;)
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata_service = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i database -i messaging
     rabbitmqctl add_user faafo guest
     rabbitmqctl set_user_tags faafo administrator
@@ -259,7 +263,7 @@ def main():
     ###########################################################################
 
     userdata_api = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r api -m 'amqp://faafo:guest@%(services_ip)s:5672/' \
         -d 'mysql+pymysql://faafo:password@%(services_ip)s:3306/faafo'
     ''' % {'services_ip': services_ip}
@@ -301,12 +305,12 @@ def main():
     ###########################################################################
 
     userdata_worker = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
 
     # userdata_api-api-2 = '''#!/usr/bin/env bash
-    # curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    # curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
     #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
 
diff --git a/faafo/contrib/install-aws.sh b/faafo/contrib/install-aws.sh
index 9f402f1..309f916 100644
--- a/faafo/contrib/install-aws.sh
+++ b/faafo/contrib/install-aws.sh
@@ -78,6 +78,7 @@ if [[ -e /etc/os-release ]]; then
     if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
         sudo apt-get update
     elif [[ $ID = 'fedora' ]]; then
+        # fedora currently not tested nor supported
         sudo dnf update -y
     fi
 
@@ -89,6 +90,7 @@ if [[ -e /etc/os-release ]]; then
             #sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
             sudo service mysql restart
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y mariadb-server python-mysql
             printf "[mysqld]\nbind-address = 127.0.0.1\n" | sudo tee /etc/my.cnf.d/faafo.conf
             sudo systemctl enable mariadb
@@ -106,6 +108,7 @@ if [[ -e /etc/os-release ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             sudo apt-get install -y rabbitmq-server
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y rabbitmq-server
             sudo systemctl enable rabbitmq-server
             sudo systemctl start rabbitmq-server
@@ -117,6 +120,7 @@ if [[ -e /etc/os-release ]]; then
 
     if [[ $INSTALL_FAAFO -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
+            # TODO: needs to be updated for Ubuntu >= 20.04
             sudo apt-get install -y python-dev python-pip supervisor git zlib1g-dev libmysqlclient-dev python-mysqldb
             # Following is needed because of
             # https://bugs.launchpad.net/ubuntu/+source/supervisor/+bug/1594740
@@ -131,6 +135,7 @@ if [[ -e /etc/os-release ]]; then
                 fi
             fi
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y python-devel python-pip supervisor git zlib-devel mariadb-devel gcc which python-mysql
             sudo systemctl enable supervisord
             sudo systemctl start supervisord
@@ -171,6 +176,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_api" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_api" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
@@ -188,6 +194,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_worker" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_worker" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
diff --git a/faafo/contrib/install.sh b/faafo/contrib/install.sh
index e921a32..0ac9f8c 100644
--- a/faafo/contrib/install.sh
+++ b/faafo/contrib/install.sh
@@ -78,6 +78,7 @@ if [[ -e /etc/os-release ]]; then
     if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
         sudo apt-get update
     elif [[ $ID = 'fedora' ]]; then
+        # fedora currently not tested nor supported
         sudo dnf update -y
     fi
 
@@ -89,6 +90,7 @@ if [[ -e /etc/os-release ]]; then
             #sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
             sudo service mysql restart
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y mariadb-server python3-mysql
             printf "[mysqld]\nbind-address = 127.0.0.1\n" | sudo tee /etc/my.cnf.d/faafo.conf
             sudo systemctl enable mariadb
@@ -106,6 +108,7 @@ if [[ -e /etc/os-release ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             sudo apt-get install -y rabbitmq-server
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y rabbitmq-server
             sudo systemctl enable rabbitmq-server
             sudo systemctl start rabbitmq-server
@@ -117,7 +120,7 @@ if [[ -e /etc/os-release ]]; then
 
     if [[ $INSTALL_FAAFO -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
-            sudo apt-get install -y python3-dev python3-pip supervisor git zlib1g-dev libmysqlclient-dev python3-mysqldb
+            sudo apt-get install -y python3-dev python3-pip supervisor git zlib1g-dev libmysqlclient-dev python3-mysqldb python-is-python3
             # Following is needed because of
             # https://bugs.launchpad.net/ubuntu/+source/supervisor/+bug/1594740
             if [ $(lsb_release --short --codename) = xenial ]; then
@@ -131,6 +134,7 @@ if [[ -e /etc/os-release ]]; then
                 fi
             fi
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y python3-devel python3-pip supervisor git zlib-devel mariadb-devel gcc which python3-mysql
             sudo systemctl enable supervisord
             sudo systemctl start supervisord
@@ -142,12 +146,13 @@ if [[ -e /etc/os-release ]]; then
         fi
 
         # HSFD changed to local repo
-        git clone https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
+        #git clone https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
+        git clone --branch dev_faafo https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
         cd cloud-computing-msc-ai-examples/faafo
         # following line required by bug 1636150
         sudo pip install --upgrade pbr
         sudo pip install -r requirements.txt
-        sudo python setup.py install
+        sudo python3 setup.py install
 
         sudo sed -i -e "s#transport_url = .*#transport_url = $URL_MESSAGING#" /etc/faafo/faafo.conf
         sudo sed -i -e "s#database_url = .*#database_url = $URL_DATABASE#" /etc/faafo/faafo.conf
@@ -165,6 +170,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_api" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_api" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
@@ -182,6 +188,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_worker" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_worker" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"