Boy Howdy is in an alpha stage and shouldn't be used for any purpose, probably not when it's released either.
This repository contains many different packages that together form Boy Howdy, an extensible Discord bot.
The boy-howdy package is a skeleton bot that uses the boy-howdy-core library, which in turn is built on top of discord.js. It also comes with some pre-installed extensions that form the basic functionality expected of a bot. Namely, this is the boy-howdy-ext-commands package, which adds a command interface to the bot.
$ not yet
The core is written in TypeScript.
Not every package is on npm so you have to mess around with npm link a bit to get it to work.