Cool but is there a reason they can't just make PRs for vLLM and llama.cpp? Or have their own forks if they take too long to merge?

They use the latest llama.cpp under the hood but built for specific AMD GPU hardware.

Lemonade is really just a management plane/proxy. It translates ollama/anthropic APIs to OpenAI format for llama.cpp. It runs different backends for sst/tts and image generation. Lets you manage it all in one place.