Also I know its too bothersome but if anyone can post an example from scratch to a completed design with a simple circuit such as adder or multiplexer for dummies in both (scripting and eda tools for physical design) such as me it would be very appreciated

There are around ~40 designs available under ./designs once you clone the repo. The simplest of them is

spm

So, you can try that out. https://github.com/efabless/openlane/tree/master#running-openlane