Earlier quoted context omitted.
Pretty sure the whole reason Ollama uses raw hashes everywhere is to avoid copying the whole NN gigabytes every time.
Maybe I am doing something wrong! When I change parameters on the modelfile, the whole thing is copied. You can't just edit the file as far as I know, you have to create another 38GB monster to change num_ctx to a reasonable number.
This will show a separate entry in `ollama list` but only copy the Modelfile not the GGUF.
Alternatively, if you use the API, you can override parameters "temporarily". Some UIs let you do this easily, at least for common parameters.