This might help with some documentation that is in html format and to generate the md version
https://github.com/xijo/reverse_markdown https://github.com/FirebirdSQL/firebird/blob/master/doc/Using_OO_API.html For example Using OO api is public only on ibase.ru in html format https://www.ibase.ru/files/firebird/fbapi.html
Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
