nbd-vram: Use your NVIDIA GPU's VRAM as swap space on Linux
Summary
nbd-vram lets you use NVIDIA GPU VRAM as swap space on Linux by allocating VRAM via CUDA and exposing it as a block device over NBD. The design avoids writing a kernel module, using the existing nbd driver to mount /dev/nbdX as swap. The README reports ~1.3 GB/s sequential throughput on a RTX 3070 Laptop and provides install, configuration, and smoke-test steps.