ZeroTier on Firewalla Purple

I see an old post back in 2023 about this but do not see any updates if anyone got this working.

I have a ZeroTier account setup, I have ZeroTier installed on a router in my rack working good, I am wanting to install ZeroTier on a Firewalla Purple so that all clients connected will be routed through the ZeroTier back to the router in my rack helping protect me while on Public Networks. If you have any info on setting this up please let me know. 

Thank you in advanced