---
id: qcon-2019
title: Sorbet: Why and How We Built a Typechecker for Ruby
sidebar_label: QCon 2019
---

**Date**: November 12, 2019\
**Speaker**: Dmitry Petrashko

- [→ Talk page](https://www.infoq.com/presentations/sorbet-type-checker-ruby/)
- [→ Video](https://www.infoq.com/presentations/sorbet-type-checker-ruby/)
- [→ Slides](https://sorbet.run/talks/QCon2019/#/)

## Abstract

Dmitry Petrashko talks about Sorbet, a fast, powerful type checker designed for Ruby. At Stripe, they used Sorbet to drive code quality via measurable, concrete indicators. Petrashko covers why they started this project and what contributed to its success.
