Suggestions for a 4 way smartlight with no neutral

I need some help solving a bank of lights that have 3 switches (4 Way). One of the switches locations has no neutral wire.

I am seeing some No Neutral single pole switches and single pole with remote slaves. But nothing that addresses my problem. Any hw suggestions would be greatly appreciated. This is the last set of lights to add to my SmartHome setup.

Thanks in advance for your help

Schematic? There are dozens of ways to wire n-way switches, so draw a schematic of what is the original wiring.