There are at least two ways in addition to the Bond bridge, which I have not used.
The first is the Somfy ZRTSI II Z-Wave (non plus) to 15 channel RTS interface, Somfy #1811265, for which there are two different Hubitat community drivers, both of which work fine.
The ZRTSI driver by Justin Walker (@augoisms), which I have used, is here:
The ZRTSI II driver by Denny Page (@dennypage) is here:
There is an older ZRTSI Interface that has fewer RTS channels, and these drivers are not for that one.
There is also a Hubitat integration for the Somfy myLink v2 WiFi to 16 channel RTS interface, Somfy #1811403. There is also a legacy myLink WiFi to RTS interface, also Somfy #1811403, that only supports 5 RTS channels. I do not know if the Hubitat integration supports the legacy myLink interface.
The Hubitat driver for the myLink v2, ported from SmartThings, is here:
I now use the myLink v2, it works fine.
