Zigbee or ZWave version
This idea already overlaps with a handful of others. Everyone is saying to support Homey, or support certain controllers.
I think it boils down to one thing. Make a Zigbee or ZWave version. It's up to the control hub manufacturers and the users to get the Zigbee/ZWave Flic working with their particular smart home Hub.
I have a 4 button ZWave remote that works great and it's very small. Seems like it wouldn't be too hard to make a 1 button ZWave/Zigbee flic.