The discord has been kind of repurposed for more established users (actually tuning on their own, not just poking around to see if they’re interested).
The Facebook group Simos Tools Users is where you want to start. Can still get info and help there, but due to some people stealing tons of info from the Discord repository, they ruined it for people genuinely curious (hence why the FB group was started).
There were also too many people joining because they “want to tune their car” and then see how involved it is and never hear again. Makes it hard to tell if someone is there just lurking for their own purposes, or trying to poach info for commercial gain.
This is the Super Weenie Hut Jr stepping stone to get you on your way though:
https://m.facebook.com/groups/926154161803291/?ref=share&mibextid=S66gvF
Look at the “featured posts” before anything else.
At some point I’ll maybe do a very basic video on the tuning process (NOT a how to tune guide). But to give a rough overview of what it entails and what the software looks like.
Edit: and no I’m not a moderator or anything. Don’t PM me asking for an invite anyway as I can’t generate one.