Thank you for your attention and your thoughts. I roughly have an idea what you’re talking about, but unluckily your message more seems to be “well, it’s not so easy”, more to learn and administrate than I can afford for next time.
I mentioned softaculous above - as far as I can estimate, that would be a really easy solution for the user, and not too difficult for the software provider. I wrote a little text on it here: https://discuss.tryton.org/t/improve-visibility-suggestion-provide-tryton-at-softaculous/2566, hopefully some fellow will give it a try.
Cheers,
Wolf