create-bot/template-js/src/index.js

const { Client, GatewayIntentBits } = require('discord.js');
const { Sern, single } = require('@sern/handler');

const client = new Client({
	intents: [
		GatewayIntentBits.Guilds,
		GatewayIntentBits.GuildMembers,
		GatewayIntentBits.GuildMessages,
		GatewayIntentBits.MessageContent, // Make sure this is enabled for text commands!
	],
});

/**
 * Where all of your dependencies are composed.
 * '@sern/client' is usually your Discord Client.
 * View documentation for pluggable dependencies
 * Configure your dependency root to your liking.
 * It follows the npm package iti https://itijs.org/.
 * Use this function to access all of your dependencies.
 * This is used for external event modules as well
 */

async function init() {
    await makeDependencies({
        build: (root) =>
            root.add({ '@sern/client': single(() => client) })
    });

    //View docs for all options
    Sern.init({
        defaultPrefix: '!', // removing defaultPrefix will shut down text commands
        commands: 'src/commands',
        // events: 'src/events' (optional),
    });
}

init();
client.login();