best-in-class. Not aware of anything better than prometheus.
I will also try @verita84_64 's kit.
a bit buggy. I had to fix some annoyances. The biggest was that it would truncate messages and sometimes get context-size wrong. Deepseek V4 flash + opencode did it in minutes. If you need details later, just ask. I can make a patch file.

I'm running Qwen3.6-35B-A3B-Q6 on pic rel