I've got an M1 Mac Studio Ultra with 64gb RAM, which I bought when it first released, i.e. not for LLMs at all. I'd love to have one of the newer generations with twice or quadruple the amount of RAM, but while it has no chance of running GLM 5.2, I've been able to run local, quantized LLMs like Qwen 3.6 using oMLX + Opencode pretty comfortably and productively.