What do you need to code in JS? Node.js from https://nodejs.org/en/download VS code from https://code.visualstudio.com/download or https://vscode.dev/ to try out VS code for free After both of those are installed, run npm install What do you need to start up your custom version of Java Lava? Your discord bot token in your .env file, your app id, your MongoDB URL, and the server id that you will be registering your developer commands to npm run start (for production) npm run dev (for development)