If you have been anywhere near the front-end JavaScript world lately, chances are you’ve heard whispers (or shouts) about something called TanStack.

But what the heck is TanStack?

TanStack, at is simplest, is a collection of NPM libraries for the JavaScript ecosystem that are like a Swiss Army knife for web developers. Libraries like TanStack Query, TanStack Table, TanStack Virtual, TanStack Form, TanStack Router, TanStack Start, etc. have been installed over 2 billion times over the past few years.

But what makes these TanStack libraries so special and beloved? In this talk, I want to share with you my journey from when I first discovered TanStack, to how I eventually became a core contributor and maintainer for some of the TanStack libraries.

I believe that TanStack adheres to a few core principles that make it successful, and that everyone can learn from to write cleaner and easier to maintain codebases. Let's take a look at how we can make use of declarative API design, composability, inversion of control, agnostic code modules, strong type-safety, and more!