At least I’m not the only one! I do not think that Tadfri will be ever supported by Yeelight.
Yes, because the remote works only with the BLE line of Yeelight and the bulbs/strips are wifi.
There is a DIY solution for this problem: Get a Raspberry pi or any other microboard that supports some sort of linux distro and have a bluetooth receiver, make it a gateway out of it using the API provided for the wifi product. Then pair a bluetooth button (like this one) with the microboard. When the button is pressed, the microboard intercept the command sent by bluetooth and do the API call via wifi to the light.
I tried, it works, it’s fast, but it’s not the remote that you see from the others company (toggle the lights, dimmers, scene selection).
I think that the cube does exactly what I wrote:
Cube is moved -> Cube make a Bluetooth call to the Xiaomi Gateway -> Xiaomy Gateway sends the command to the server where the yeelight is registered (I don’t think that uses LAN control)
If anyone have the original BLE remote, Please make a try to pairing it with a windows or linux machine. Maybe we can do something in the meantime.
I tagged @weiwei last time hoping for a response on this, and I do it again now.