diff --git a/README.install.00 b/README.install.00
new file mode 100644
index 0000000..b098192
--- /dev/null
+++ b/README.install.00
@@ -0,0 +1,326 @@
+# =================
+# - Install Cryptad on Debian 9 (stretch)
+# =================
+
+# - See: 
+# -    https://blog.cavebeat.org/2017/07/cryptpad-installation-on-debian-stretch/
+# -
+# - See also:
+# -    git repository:     https://github.com/xwiki-labs/cryptpad
+# -    installation guide: https://github.com/xwiki-labs/cryptpad/wiki/Installation-guide
+# - 
+
+cryptpad_url=cpad-01.oopen.de
+cryptpad_url=o13-pad.oopen.de
+
+# bei vorgeschalteter authentifizierung funktioniert 
+# eine *extra* sandbox url nicht. in diesem falle die gleiche
+# adresse nehmen wie für die hautp seite
+#
+#cryptpad_sandbox_url=cpadsb-01.oopen.de
+#cryptpad_sandbox_url=o13-padsb.oopen.de
+cryptpad_sandbox_url="$cryptpad_url"
+cryptpad_sandbox_url="cpadsb-01.oopen.de"
+cryptpad_sandbox_url="o13-padsb.oopen.de"
+
+vhost_config_file="${cryptpad_url}.conf"
+
+
+# ----------
+# - Pre-requisites
+# ----------
+
+# - Install curl, git
+# -
+apt-get install curl git-core
+
+# - Install Python
+# -
+apt-get install python-minimal python
+# debian bullseye:
+apt install python-is-python2 python2-minimal
+
+# - Install compiler stuff
+# -
+# -    apt-get install -y g++ g++-multilib gcc gcc-multilib cpp \
+# -       make automake autoconf libtool flex bison \
+# -       gettext pkg-config gnu-standards \
+# -       libssl-dev libreadline-dev libncurses-dev
+# -
+apt-get install gcc g++ make
+
+
+# ---
+# - Install Nginx webservice
+# ---
+
+apt-get install nginx
+
+# - Generate Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
+# -
+mkdir /etc/nginx/ssl
+openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
+
+
+# ----------
+# - Create nginx configuration for CryptPad
+# -
+# - see: https://github.com/xwiki-labs/cryptpad/blob/main/docs/example.nginx.conf
+# -
+# ----------
+
+
+# ---
+# - Install NodeJS v6.x on Debian 9 Stretch
+# ---
+
+# - Creates the apt sources list file '/etc/apt/sources.list.d/nodesource.list' for 
+# - the NodeSource Node.js v6.x and also adds the NodeSource signing key to your keyring
+# -
+# -    curl -sL https://deb.nodesource.com/setup_6.x | bash -
+# -
+# - Hope nodejs version 14.x will work 
+# -
+# -     nodejs 6.0 does not yet work for actuall etherpad, which ist also installed 
+# -     on this server. 
+# -
+curl -sL https://deb.nodesource.com/setup_14.x | bash -
+apt-get update
+
+# - Install nodejs version 6.x from repository 'deb.nodesource.com'
+# -
+
+# - Tell the apt system to install nodejs from repository deb.nodesource.com
+# -
+# - You should pin the external source using the origin option to assign a high 
+# - priority to "the external source" instead of using the release name.
+# -
+# - e,g: Add the following lines to your /etc/apt/preferences.d/preferences:
+# -
+# -    Package: *
+# -    Pin: origin deb.nodesource.com
+# -    Pin-Priority: 1001
+# -
+if ! $(grep -E -q "^\s*Pin:\s+origin\s+deb.nodesource.com" /etc/apt/preferences.d/preferences) ; then
+   cat <<EOF >> /etc/apt/preferences.d/preferences
+Package: *
+Pin: origin deb.nodesource.com
+Pin-Priority: 1001
+EOF
+fi
+
+# - Verify with 'apt-cache policy nodejs'
+# -
+# - Output must conatin somethin liek that:
+# -    Installationskandidat: 6.14.4-1nodesource1
+# -
+apt-cache policy nodejs
+
+# - Install nodejs..
+# -
+apt-get install nodejs
+
+# - An alternative possibility:
+# -
+# - 1. Show versions for nodejs
+# -
+# -    # aptitude versions nodejs
+# -
+# -    output may looks like:
+# -
+# -       i   6.14.4-1nodesource1                                     <NULL>                              500
+# -       p   10.15.2~dfsg-2                                          stable                              500
+# -
+# - 2. install nodejs 6.14.4-1nodesource1
+# -
+# -    apt-get install nodejs=6.14.4-1nodesource1
+# -                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
+# -
+
+# - Test if installation was successfully
+# -
+node -v
+npm -v
+
+
+
+# ---
+# - Install bower
+# ---
+
+# - Install bower (global)
+# -
+npm install -g bower
+
+
+# ---
+# - Create the user for the service:
+# ---
+
+mkdir -p /var/www/{.cache,.config,.local,.node-gyp,.npm,.private}
+chown -R www-data:www-data /var/www/{.cache,.config,.local,.node-gyp,.npm,.private}
+
+
+
+# ---
+# - Install cryptpad
+# ---
+
+cd /var/www/
+chown www-data:www-data /var/www
+
+
+# - Get cryptpad
+# -
+su www-data -s /bin/bash -c "git clone https://github.com/xwiki-labs/cryptpad /var/www/cryptpad"
+
+cd cryptpad
+
+# - Complete Installation of cryptpad
+# -
+su www-data -s /bin/bash -c "npm install"
+
+# - Maybe you haave to run 
+#
+#    su www-data -s /bin/bash -c "npm fund"
+#    su www-data -s /bin/bash -c "npm audit fix --force"
+
+su www-data -s /bin/bash -c "bower install"
+
+
+# ---
+# - Configure CryptPad
+# ---
+
+# - Create configuration file 'config.js'. (Copy the example file)
+# -
+# - The defaults should be good enough for most cases, but you may want to edit
+# - them. We recommend you read over the example file and change the values to
+# - fit your needs.
+cp -a config/config.example.js config/config.js
+
+# - Some base configuration
+# -
+# -    adminEmail: 'admin@oopen.de',
+# -    ...
+# -    httpUnsafeOrigin: http://localhost:3000
+# -    httpSafeOrigin: ${cryptpad_sandbox_url}
+# -    httpAddress: '::',
+# -    ...
+# -    myDomain: oopen.de,
+# -
+if $(grep -q -E "\s*/?/?\s*adminEmail" /var/www/cryptpad/config/config.js 2> /dev/null) ; then
+   perl -i -n -p -e"s#(\s*)(adminEmail:.*)#\1// \2\n\1adminEmail: 'admin\@oopen.de',#" /var/www/cryptpad/config/config.js
+else
+   perl -i -n -p -e"s/(\s*})/    adminEmail: 'admin\@oopen.de',\n\1/" /var/www/cryptpad/config/config.js
+fi
+
+perl -i -n -p -e"s#(\s*)(httpUnsafeOrigin:.*)#\1// \2\n\1httpUnsafeOrigin: 'https://${cryptpad_url}',#" /var/www/cryptpad/config/config.js
+
+perl -i -n -p -e"s#(\s*)(/*\s*)(httpSafeOrigin:.*)#\1// \3\n\1httpSafeOrigin: 'https://${cryptpad_sandbox_url}',#" /var/www/cryptpad/config/config.js
+
+
+perl -i -n -p -e"s#(\s*)(/*\s*)(httpAddress:.*)#\1// \3\n\1httpAddress: '::',#" /var/www/cryptpad/config/config.js
+
+# - deaktivate donate Button
+# -
+if $(grep -q -E "\s*/?/?\s*removeDonateButton" /var/www/cryptpad/config/config.js 2> /dev/null) ; then
+   perl -i -n -p -e"s#(\s*)(/*\s*)(removeDonateButton:.*)#\1//\3\n\1removeDonateButton: true,#" /var/www/cryptpad/config/config.js
+else
+   perl -i -n -p -e"s/(\s*})/    removeDonateButton: true,\n\1/" /var/www/cryptpad/config/config.js
+fi
+
+# - Set storage..
+# -
+perl -i -n -p -e"s#(\s*)(/*\s*)(defaultStorageLimit:.*)#\1//\3\n\1defaultStorageLimit: 250 * 1024 * 1024,#" /var/www/cryptpad/config/config.js
+
+# - Customizing CryptPad
+# -
+# - In order allow a variety of features to be changed and to allow site-specific
+# - changes to CryptPad apps while still keeping the git repository pristine, this
+# - directory exists to allow a set of hooks to be run.
+# -
+# - The server is configured to load files from the '/customize/' path
+# - preferentially from 'cryptpad/customize/', and to fall back to 
+# - 'cryptpad/customize.dist/' if they are not found.
+# -
+# - If you wish to customize cryptpad, please **copy**
+# - '/customize.dist/' to '/customize' and then edit it there, this way you will
+# - still be able to pull from (and make pull requests to (!) the git repository.
+# -
+cp -a /var/www/cryptpad/customize.dist /var/www/cryptpad/customize
+
+# - Copy 'favicon.ico' to '/var/www/cryptpad/customize/main-favicon.png'
+# -
+cp ~chris/favicon.ico /var/www/cryptpad/customize/main-favicon.png
+cp ~chris/favicon.ico /var/www/cryptpad/customize.dist/
+chown www-data:www-data /var/www/cryptpad/customize/main-favicon.png
+chown www-data:www-data /var/www/cryptpad/customize.dist/favicon.ico
+
+
+
+# ---
+# Systemd Unit
+# ---
+
+# - Run as daemon using systemd
+# -
+cat << EOF > /etc/systemd/system/cryptpad.service
+[Unit]
+Description=CryptPad Service
+After=syslog.target network.target
+Requires=nginx.service
+
+[Service]
+Type=simple
+User=www-data
+Group=www-data
+Environment='PWD="/var/www/cryptpad"'
+# modify to match the location of your cryptpad repository
+WorkingDirectory=/var/www/cryptpad
+ExecStart=/usr/bin/node /var/www/cryptpad/server.js
+
+TimeoutSec=30
+# Restart service after 10 seconds if node service crashes
+RestartSec=2
+Restart=always
+
+# Output to syslog
+StandardOutput=syslog
+StandardError=syslog
+SyslogIdentifier=cryptpad
+
+## Modify these two values and uncomment them if you have lots of files and get an HTTP error 500 because of that
+LimitMEMLOCK=infinity
+LimitNOFILE=65535
+### If you want to bind CryptPad to a port below 1024 uncomment the two values below
+#CapabilityBoundingSet=CAP_NET_BIND_SERVICE
+#AmbientCapabilities=CAP_NET_BIND_SERVICE
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+systemctl daemon-reload
+systemctl enable cryptpad
+
+# - Start cryptpad
+# -
+systemctl start cryptpad
+
+
+# ---
+# Basic Check of your configuration:
+# ---
+
+# In yout browser type:
+#
+#    https://${cryptpad_url}/checkup/
+
+# Maybe the the 'checkup' script recommends to run:
+#
+#  npm run build
+#
+# we have to do this under the webservice user www-data
+#
+su www-data -s /bin/bash -c "npm run build"