Pair Trading - Exploring The Low Risk Statistical Arbitrage Trading Concepts

Dear @ncube,

I came across this thread a few days back. I followed your very well composed posts and subsequent explanations. And No.... your posts are not like a thesis!!!

Its been over 3 years since this thread started. I do not possess a programming background.

I was wondering:
1. If the links provided are still valid? For the script, etc...
2. Any new learnings?
3. I see that you now have Buy/Sell indicators? I am not seeing that when i run the Jupyter Notebook.
4. Could you make a detailed posts on the present structure of the script, as i see from earlier post it has undergone change. Are we still using EOD Close prices, etc?
5. Any other related information that you would like to share.

A big thank you to you and other people who developed and helped develop this script, make changes, etc. You Put in a lot of time and effort to share your knowledge for no commercial gain.