Hey, @0ca0a, welcome to the forum!
Buerli looks super cool, I’m looking forward to seeing what you cook up integrating the two 
Speckle was originally designed to get geometry and data from desktop software, so most of our tooling for sending is in C# and Pyhton.
Nevertheless, I think this recent development by @dimitrie should be helpful:
Let us know if it works or if you have follow-up questions! Others from the team might expand and provide more resources as well 