It kind of seems like you are describing virtual hosts here and this should work fine on a Mac with Apache. i haven’t really played with any of the servers you mentioned; but, if you want to add another local host address you should try what Linux does for IPv6 addresses in the /etc/hosts file.. and the way they do that is by creating multiple localhosts in that file, each on their own line.. hope this helps, please submit more info if you come across any issues.

I found an article that links the dylib, here are the commands; but, if you don’t have that on your computer you actually need to keep Xcode and use it to install the LLVM compiler which you might have to do from source (which is easy) or use homebrew 😬 but i did take a minute to read over your post again and realized that seems more like the problems that I’ve been having with my m1 trying to work backwards. im new to these forums so I’m not sure how convenient the messaging system is but I can walk you through any of this if you’ve never done it before. i wouldn’t trip though because the compiler is easy to install and those errors look like you just need to add the LLVM and clang libs

Phew.. you got your hands full there.. by chance did you install the developer command line tools? i know that there was a problem with the dylibs earlier last year; but I’d have to look it up to remember what it was; however, I can tell you that after reading your post it sounds like the opposite of needing to remove Xcode. It sounds like something is missing and I’d have to look this up again too; but, the example was that if you were to download all of Xcode’s sdks, like even the ones for os and kernel development like so we can make drivers, then the total size comes out to roughly forty gigs. See what I mean? I’ve usually solved these types of problems by adding languages. I feel like the worst thing you can do on an apple computer is delete stuff.. anyway, let me know if you find out any more info.