gguf merge mergekit lazymergekit UsernameJustAnother/Nemo-12B-Marlin-v5 anthracite-org/magnum-12b-v2 llama-cpp gguf-my-repo base_model:GalrionSoftworks/MagnusIntellectus-12B-v1 base_model:quantized:GalrionSoftworks/MagnusIntellectus-12B-v1 endpoints_compatible region:us conversational