Currently, gdbserver doesn't work on macOS (guest) as it uses [eventfd](https://github.com/AsahiLinux/m1n1/blob/main/proxyclient/m1n1/hv/gdbserver/__init__.py#L28), which isn't available on BSD.
Currently, gdbserver doesn't work on macOS (guest) as it uses eventfd, which isn't available on BSD.