[leidenfrost]

The solution for that is to decide which period do you want to build support for.

Trying to be binary-compatible with Tahoe may not be worth it. But you could make a distro binary-compatible with Snow Leopard.

Or better, make it compatible with Ventura apps without the bloat of MacOS Ventura.

That could give new life to old Macs. It can also give a PC a MacOS-like environment without having to deal with Hackintosh.

[netfortius]

This won't work simply because majority of apps follow "the new trend". Take calibre, for example. I found myself having to OCLP my calibre server, simply because the hardware won't "take" the new macOS version required by the app, but the app new features are only available in the new versions.