diff --git a/.gitignore b/.gitignore
index 12b983f..5ed74b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
-stats
 .vagrant
 *.pdf
+.DS_Store
+*.pdf
+stats/
+static/
diff --git a/global/Pre/Title/04_Licence.md b/global/Pre/Title/04_Licence.md
new file mode 100644
index 0000000..a983f92
--- /dev/null
+++ b/global/Pre/Title/04_Licence.md
@@ -0,0 +1,25 @@
+!SLIDE printonly
+
+# Licence
+
+This work is licensed under a Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) License.
+
+This is a human-readable summary of (and not a substitute for) the license.
+
+You are free to:
+
+* Share — copy and redistribute the material in any medium or format
+* Adapt — remix, transform, and build upon the material for any purpose, even commercially.
+
+Under the following terms:
+
+* Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
+* ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
+* No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
+
+The licensor cannot revoke these freedoms as long as you follow the license terms.
+
+Full Licence:
+
+* https://creativecommons.org/licenses/by-sa/4.0/
+* https://creativecommons.org/licenses/by-sa/4.0/deed.de
diff --git a/global/wizard.sh b/global/wizard.sh
index 201fb40..d2fc5f6 100755
--- a/global/wizard.sh
+++ b/global/wizard.sh
@@ -1,26 +1,32 @@
 #!/bin/bash
 DIR=$(pwd)
 CLANG=${CLANG:-C.UTF-8}
-IMAGE=${IMAGE:-netways/showoff:0.19.6}
+IMAGE=${IMAGE:-netways/showoff:0.20.4}
 CNAME=${CNAME:-showoff}
 TRAINING=${TRAINING:-$(basename "$DIR")}
-DOCKER=${DOCKER:-$(command -v docker)}
+RUNTIME=${RUNTIME:-$(command -v docker)}
 GIT=${GIT:-$(command -v git)}
 SCRIPT_DIR=$(cd $(dirname $0); pwd -P)
 NO_RESET=${NO_RESET:-""}
 
-# Functions
-
+# Run given command in the showoff container
 execdocker () {
-  if [[ -n $($DOCKER ps -aq -f name=$CNAME 2> /dev/null) ]]; then
-    $DOCKER rm -f $CNAME 2> /dev/null
+  if [[ -n $($RUNTIME ps -aq -f name=$CNAME 2> /dev/null) ]]; then
+    $RUNTIME rm -f $CNAME 2> /dev/null
   fi
 
-  $DOCKER run \
+  case $($RUNTIME -v) in
+      *podman*) USERNS=keep-id;;
+      *)        USERNS=host;;
+  esac
+
+  $RUNTIME run \
     -it \
     --name=$CNAME \
     --rm \
     -p 9090:9090 \
+    --user $(id -u) \
+    --userns=$USERNS \
     -v "$DIR:/training:z" \
     -e "LANG=$CLANG" \
     -e "LANGUAGE=$CLANG" \
@@ -29,25 +35,34 @@ execdocker () {
     $1
 }
 
+# Generate handouts as showoff HTML and convert HTML to PDF
 printhandouts () {
   echo -e "\n--- RUN SHOWOFF STATIC FOR HANDOUTS ---"
   execdocker "showoff static print"
+  # Removes showoff's Section markers for PDF output
+  sed -i 's/~~~.*~~~ //g' static/index.html
   echo -e "\n--- RUN WKHTMLTOPDF FOR HANDOUTS ---"
-  execdocker "wkhtmltopdf --load-error-handling ignore -s A5 --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}-handouts.pdf"
+  execdocker "wkhtmltopdf --enable-local-file-access --load-error-handling ignore -s ${FORMAT} --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}_${FORMAT}-handouts.pdf"
 }
 
+# Generate exercises as showoff HTML and convert HTML to PDF
 printexercises () {
   echo -e "\n--- RUN SHOWOFF STATIC FOR EXERCISES ---"
   execdocker "showoff static supplemental exercises"
+  # Removes showoff's Section markers for PDF output
+  sed -i 's/~~~.*~~~ //g' static/index.html
   echo -e "\n--- RUN WKHTMLTOPDF FOR EXERCISES ---"
-  execdocker "wkhtmltopdf --load-error-handling ignore -s A5 --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}-exercises.pdf"
+  execdocker "wkhtmltopdf --enable-local-file-access --load-error-handling ignore -s ${FORMAT} --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}_${FORMAT}-exercises.pdf"
 }
 
+# Generate solutions as showoff HTML and convert HTML to PDF
 printsolutions () {
   echo -e "\n--- RUN SHOWOFF STATIC FOR SOLUTIONS ---"
   execdocker "showoff static supplemental solutions"
+  # Removes showoff's Section markers for PDF output
+  sed -i 's/~~~.*~~~ //g' static/index.html
   echo -e "\n--- RUN WKHTMLTOPDF FOR SOLUTIONS ---"
-  execdocker "wkhtmltopdf --load-error-handling ignore -s A5 --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}-solutions.pdf"
+  execdocker "wkhtmltopdf --enable-local-file-access --load-error-handling ignore -s ${FORMAT} --print-media-type --footer-left [page] --footer-right ©NETWAYS static/index.html ${TRAINING}_${1}_${FORMAT}-solutions.pdf"
 }
 
 setlayout () {
@@ -55,8 +70,11 @@ setlayout () {
   ln -s global/layouts/$1.css .
 }
 
-if [[ ! -x $DOCKER ]]; then
-  echo "Command 'docker' not found, exit"
+# Create reference if it doesn't exist
+ln -sf . global
+
+if [[ ! -x $RUNTIME ]]; then
+  echo "Command '${RUNTIME}' not found, exit"
   exit 1
 fi
 
@@ -96,6 +114,27 @@ esac
 
 setlayout $LAYOUT
 
+echo -e "\n### FORMAT ###"
+
+echo -e "
+   [1] A5
+   [2] A4\n"
+
+FORMAT_DEFAULT=1
+read -p "Which format? [1-2] (Default: "$FORMAT_DEFAULT"): " FORMAT
+FORMAT="${FORMAT:-$FORMAT_DEFAULT}"
+
+while [[ $FORMAT != [1-2] ]]; do
+  echo "Invalid option, try again..."
+  read -p "Which format? [1-2] (Default: "$FORMAT_DEFAULT"): " FORMAT
+  FORMAT="${FORMAT:-$FORMAT_DEFAULT}"
+done
+
+case "$FORMAT" in
+  1) FORMAT=A5;;
+  2) FORMAT=A4;;
+esac
+
 echo -e "\n### MODE ###"
 
 echo -e "
@@ -143,4 +182,3 @@ elif [[ $MODE == 2 ]]; then
        printsolutions $VERSION;;
   esac
 fi
-