I do not want to start a discussion on Christianity, just to point to that there is a more subtle understanding in the church whether or not you believe in it.
Unfortunately it looks like the maintenance state of the pieces around Rellic isn't very good, and it's quite rocket science to get it building. It doesn't have as much UI/GUI as Ghidra either so it's a bit far from accessible right now.
A modern $150 50mm f/1.8 at f/8 will out-resolve an older $1300 50mm f/1.2 at f/8, but holy poops, can that older design produce a rendering quality that is simply smooth and beautiful in an intangible way due to the lens designers' intentional tradeoffs.
If you find yourself making comparisons like this one, you're almost to the part of your photographic career where you may be about to start reducing the amount of gear you use, as you begin to find the tools that resonate for you.
Perhaps the older lens has more pleasing colors: normally absorbing a bit more of hi-freq(blue/violet) lens a comfy "orange sunset" effect and warm atmosphere. Modern digital cameras tend to be "colder" in color, with sharp blue/violet.