Sponge async world generating attempt

    @Override
    public CommandResult execute(CommandSource src, CommandContext args) throws CommandException {
        Optional<String> worldName = args.getOne("world-name");

        src.sendMessage(Texts.of("Starting world build..."));

        if (worldName.isPresent()) {
            Optional<World> worldOptional = game.getRegistry().createWorldBuilder()
                    .name(worldName.get())
                    .enabled(true)
                    .loadsOnStartup(false)
                    .keepsSpawnLoaded(false)
                    .dimensionType(DimensionTypes.OVERWORLD)
                    .generator(GeneratorTypes.OVERWORLD)
                    .gameMode(GameModes.CREATIVE)
                    .build();

            if (worldOptional.isPresent()) {
                World world = worldOptional.get();
                net.minecraft.world.World nmsWorld = (net.minecraft.world.World) world;
                Location<World> location = world.getSpawnLocation();

                ChunkIOExecutor.queueChunkLoad(nmsWorld,
                        (AnvilChunkLoader) nmsWorld.getSaveHandler().getChunkLoader(nmsWorld.provider),
                        (ChunkProviderServer) nmsWorld.getChunkProvider(),
                        location.getBlockX(),
                        location.getBlockZ(),
                        () -> { // presume this is run when chunk is meant to be loaded?
                            if (src instanceof Player) {
                                ((Player) src).setLocationSafely(world.getSpawnLocation());
                            }
                        }
                );

                src.sendMessage(Texts.of("World created and queued for loading."));
            } else {
                src.sendMessage(Texts.of("World couldn't be created for some reason."));
                return CommandResult.empty();
            }
        } else {
            src.sendMessage(Texts.of("Missing world name."));
            return CommandResult.empty();
        }

        return CommandResult.success();
    }