Now that most of the issues are resolved, I would say none of it is really an issue you would need to be a programmer to resolve. More that you would need to have experience setting up websites.

I also set mine up manually. There are a half a dozen or so different scripts that will set it up for you, including an official one here. I generally don't feel comfortable running scripts on my server, so I avoid this if possible. But if you don't have anything else on your server that you're afraid it will fuck up, this is probably the easiest way to do it. You're basically installing one command line program, on your laptop, then running the script. You'll just need WSL2 on your laptop, be comfortable with CLI, and know how to git clone a repository. All that stuff can be easily googled.