Hello. If you are interested in using a Raspberry Pi to interface with the “new” Smartthings platform, I have created a package to enable you to implement Direct-connected devices on RPi. This allows you to also develop any application code running locally on your Pi that can interact with Smartthings via the direct-connected devices. No cloud server to manage and no smart apps needed. See my post with link to the package: https://community.smartthings.com/t/announcing-beta-for-enabling-raspberry-pi-direct-connected-devices/214725