Although not exactly user-friendly, I created my first proper bash script the other day for setting up a postfix server on a vps. You have to create the vaniall

Although not exactly user-friendly, I created my first proper bash script the other day for setting up a postfix server on a vps. You have to create the vanialla vps first but then the script does all of the apt install stuff and then uses awk/sed/whatever to modify config files. The nice thing is that it is mostly what you would do manually anyway and the commands are unlikely to change much/often since they will install latest versions of postfix etc. when you run the script. I think this might be more doable since the scripts are easy to create and maintain so perhaps just a site with bash scripts for e.g. "Postfix + Sendmail" or "PHP7 + nginx"