That is great! Thanks for the Update.

Just for others: Again from https://www.edg.com/c

The internal documentation comprises about 600 pages. The "External Interface" chapter of that document, covering command-line options, language dialect issues, and the use of language features like templates, is freely available for downloading in PDF format - https://www.edg.com/docs/edg_cpp.pdf (dated Nov 21, 2025 and hence presumably the latest version)

PS: Maybe these essential info (pointed out in my comments and updated by you) should be front and center in the new edgcpp website.