#library maintenance

We all used open source projects every day such as npm packages, editors, web applications, and even operating systems... Have you ever thought of building one of your own? In this talk, I will share my journey building jest-preview, from when it was just a vague idea, to currently a well-adopted library to help frontend engineers write tests faster. I will share with you how to come up with an idea for a project to work on, what is the struggles you have to overcome as an author of an open source project, how to manage time efficiently, and how you get attention from engineers around the world.

Making money with your React UI library.

Maintaining widely-used JS libraries is already complicated, and TypeScript adds an additional set of challenges.
Join Redux maintainer Mark Erikson for a look at some of the unique problems TS library maintainers face, and how the Redux team has handled those problems. We'll cover:
- Tradeoffs of different ways to define TS types for a library
- How to target different versions of TS, and considerations for determining the supported version range
- Migrating existing JS libraries to TS
- Differences between writing "app" types and "library" types
- Managing and versioning public types APIs
- Tips and tricks used by types from the Redux libraries
- TS limitations and possible language-level improvements

The final stage of a react component is when it is being published and distributed. How can I ensure my packages won’t crash in production? This talk will help you to test your React components publishing them to a private registry and running End-to-End tests against them.