This is interesting.
Flic are small Bluetooth 5.0 buttons, about the size of a US quarter but thicker. There’s no official integration with smartthings, but they have their own mini hub which you can use with HomeKit or Ifttt or to trigger Amazon routines (the first third-party button to do so). We use a bunch of these at our house. They use Bluetooth 5.0 means they should be more reliable and have longer range than older generation Bluetooth devices.
This should open up some integration possibilities with smartthings and the new platform, depending on exactly how you use it.
The buttons themselves are expensive, but really well engineered with replaceable batteries and three functions per button: press, double press, and long hold.
They also have an IR blaster, but I don’t know if that’s exposed to the new SDK.
They offer a lot of different bundles and occasionally run sales, usually around holidays. List price for a starter kit of the mini hub and three Bluetooth buttons (no IR) is $160.
The buttons used to come in different colors, but now they are all just flat white and you can get an icon sticker if you want. I think we have about nine of them now, acquired at different times on different sales. Maybe a dozen, one of my housemates likes them.
Anyway, the new SDK opens up some fun projects.