Can I run Swift-1.5-Flash-Next-Heretic-ReverseEngineer on a Mac with 64 GB?
No
Even its smallest file (IQ3_S, 84.6 GB) is more than a Mac with 64 GB can hold (48.0 GB usable): it needs a Mac with 128 GB.
Files and context on Mac with 64 GB
Each file of Swift-1.5-Flash-Next-Heretic-ReverseEngineer (and of GGUF versions the site has analyzed), and how much context fits next to it, with the context cache in 16-bit or 8-bit.