Yarn is a new JavaScript package manager created by folks at Facebook that aims to be speedy, deterministic, and secure. As the size of their codebase and the number of engineers grew, they ran into problems with consistency, security, and performance. Thats why they’ve created Yarn. If you want to learn the basics, there is already a screencast available.

Walmart open sourced the platform that powers Walmart.com. This initially started to solve problems that big organizations like Walmart were facing like structure, code reuse, and performance. It’s great to see such a big company giving back to the community to help with the problems they already faced.

Lately I’ve been looking into optimizations for my NodeJS application after I discovered some memory problems. This tool is great to monitor your local NodeJS development environment. It currently supports features like CPU utilization, Event Loop delay and Memory Heap consumption.

I been following some of the GraphQL developments for a while now. I even wrote four reasons why people should at least try out GraphQL. This article will go more in-depth on the problem that GraphQL is trying to solve, that is currently being used in production by big companies like Facebook, Pinterest and Shopify.