su -lc "cd /var/repos && git clone --mirror ${old_server}:zettel.git" plom
cp "${config_tree_prefix}/other_files/zettel_hook_post-receive" /home/plom/zettel.git/hooks/
su -lc "git clone ~/zettel.git" plom
+su -lc "ln -s /home/plom/zettel /var/www-dump/zettel" plom
rm /home/plom/prepare_to_meet_server.sh
# Prepare NGINX.