$ snapcraft --use-lxd build Support for 'multipass' needs to be set up. Would you like to do that it now? [y/N]: vs. $ snapcraft build --use-lxd Launching a container Command line options being positional makes for a very confusing user experience. And if `--use-lxd` is an invalid option before the command, it should be a straight-up error instead of being ignored.