Sorry, the Gemini page is not ready yet.
The project is a long-term process.
If you wish to be informed whenever a new page is added
I will gladly send you an e-mail. Please let me know.
Your opinion is very welcome.
 
Thank you for your patience.
NB After #33 I needed to first finish number 36 of the structure line,
in order to be able to deal with its practical results in the themes line.