You are correct, I can understand your frustration.
There is a lot documentation available - for jam - but it is quite overwhelming since Jam uses so many frameworks that each of them has it's quirks and gotchas; this is not easy to document and demonstrate as a WHOLE solution.
For me, I am thankful to you and Andrew for Jam and all the help.
Right now my problem - that is preventing me from showing a working example - is my lack of knowldedge of jQuery and how to do things that seem easy but the available documentation (from jQuery) is not helping:
What is needed is somehow to be able to programmatically add (from on_edit_form_created()) something to a specific tab and I cannot understand how to access the object via Jam.
All LLMs I've tested (ChatGPT, DeepSeek, Grok) produce code that on paper it should work but in reality it does not and even brakes the whole system.
So, LLMs are not the answer because they cannot even provide proper knowledge on how to do things... at least for me.