Here: https://parsers.org/tips-and-tricks/you-say-tomayto-i-say-tomahto-exploring-syntax-options-in-congocc/
The article is about various ways things can be expressed in CongoCC. I think some people, at various levels of expertise in using the tool, could find this useful. If you have any questions or comments, by all means, post them here.
By the way, I am developing the idea (maybe fantasy) that if I write enough such articles sort of willy-nilly, AI will help me to distill it all into proper docs somehow. Until recently, I would not have considered this possible, but recently Monsieur Claude has been quite impressive.