Answer
Because wavecat runs its models on-device, it needs a reasonably capable machine.
On Mac, wavecat supports Apple Silicon only. You’ll want at least 24 GB of unified memory for smooth background model running, with 32 GB or more recommended.
On Windows and Linux, wavecat supports Vulkan (plus CUDA on Windows), so a wide range of graphics hardware works. We recommend a dedicated GPU with at least 12 GB of VRAM, or a unified-memory device with at least 24 GB of RAM. See supported operating systems for platform details.
No requirement is strictly enforced, but wavecat won’t run enjoyably below these specs — and more memory and GPU headroom is always better. For why it asks for this much, see why wavecat is compute heavy.