Mijia, Xiaomi's smart home brand, has unveiled the Curtain Companion, a smart adapter for your soft furnishings. The device has timed modes and can use a light sensor to adjust the amount of natural light in your room automatically.
https://www.notebookcheck.net/Xiaomi-launches-the-Mijia-Curtain-Companion-smart-adapter.607708.0.html
" it remains to be seen if Xiaomi will roll this product out to the rest of the world. " .. pun intended ;)