[X] create demo environment https://fpm.www.landscapefor.eu/ (can be visited only poisoning your DNS with `178.32.217.125 fpm.www.landscapefor.eu`)
[ ] upgrade from PHP 7.3 to PHP 7.4+
[X] install sury.org
[X] apt install php7.4-fpm
[X] apt install php7.4-xml php7.4-gd php7.4-imagick php7.4-intl php7.4-mbstring php7.4-mysql
[X] enable PHP fpm
[X] create virtualhost
[ ] understand Internal Server Error, logs? asd
[ ] install missing dependencies
[ ] backup
[ ] upgrade Joomla (how?)