#!/bin/sh
nh_subcommand="os"
fallback_command="nixos-rebuild"
hostname=""
if [ -n "$1" ]; then
	hostname="#$1"
fi
if [ "$(uname -o)" = "darwin" ]; then
        nh_subcommand="darwin"
        fallback_command="nix run .#darwin-rebuild --"
fi
if command -v nh >/dev/null; then
        nh $nh_subcommand switch .
else
        $fallback_command switch --flake '.'"${hostname}"
fi