While there is no official direct support for the flexSecure, this forum category (Support โ flexSecure Support) is meant to provide a community support mechanism concerning its use and operation.
A collection of various applications and documentation regarding the flexSecure is available via GitHub repo at;
Thanks! In this specific case, quite a lot of credit goes to @StarGate01 as he is the maintainer for flexSecure applets and author of all the docs there.