03-10-2020, 01:34 PM
This sounds very much like CloudPebble which was an online IDE for developing applications and watch faces for the Pebble watch. You could enter your source code, compile it, test it with an emulator, and download it to the Pebble watch. I used it for several Pebble watch projects and found it easy to use and much easier than installing the SDK, compilers, etc. on my home PC. Unfortunately since the FitBit takeover of Pebble the CloudPebble server no longer exists.