#open-source

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.

Rogule is an emoji based open source online roguelike game that started life as a 7DRL game jam entry. It has now grown to around 1,500 games per day. In this talk I'll cover the weird tech (ClojureScript), the motivation, game mechanics, and the future of Rogule.

Synthesis' mission is to create a generation of supercollaborators through games. Learn how we harness the power of open source game dev libraries like Pixi.js and Colyseus to build high quality multiplayer games that kids enjoy.

Open source has won, and it's the center of gravity for our community. Whether we're contributors to open source projects, commercial product engineers, companies, developer advocates, or something else, we're all a part of this community. And we owe it to each other, and to ourselves, to leave the community better than we found it.
But how do we do that? What responsibilities do companies have to the community? Or developer advocates? Or OSS contributors? How are we failing those responsibilities, and how can we do better?
In short, what do we owe to each other? Let's find out.

Maintaining open source repos isn't just for "experts". Even junior developers can make great maintainers. Here's how I started maintaining a project and you can do it too.

Nuxt modules are the de-facto way of extending our Nuxt applications with new behaviors and functionalities. Have you ever built your own? Why would you bother with hundreds of modules already out there? Let's answer those questions together and see why making your own modules in Nuxt 3 can both help you have a deeper understanding of how Nuxt works while also paving the way for you to get into open source!

React Flow is an open source library used by thousands of developers and hundreds of companies. How do we make sure it stays alive, and also free? I’ll share some insights along our journey from open sourcing React Flow to passing the “black zero,” including findings from our user research where we spoke to some of the people who support us every month.

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

Over the past few years, state machines, statecharts, and the actor model have proven to be viable concepts for building complex application logic in a clear, visual way with XState. In this talk, we'll take a peek into the future of XState, including new features in the next version, and new tools and services that will make it even easier to create and collaborate on state machines.