One day, I had an idea for a JavaScript library that was going to change the world. It would allow me to write code one way in development, but run differently in production. This led me down the wonderful world of transpilers and Vite plugins.

Turns out, it's kind of hard to write a perfect library that changes the world. Mine turned out to be a bit crap, but the good news is that I learned a lot and want to share with you, so yours will be even better!

In this talk, we'll look at taking an idea from a concept to a creation, what a transpiler is and why we need one, how to write a plugin to transform code into better code, and some considerations around library designs.