These days fewer and fewer web developers get to specialize in a single language like Ruby. We use different tools for different jobs. In this article, Ayooluwa Isaiah argues that Go is the perfect complement to Ruby. The developer who knows both is in a great position to handle almost any back-end challenge.

With a special thanks to Aleksandar and Unai, we’re happy to announce AppSignal for Elixir 1.13.0, which includes our all-new LiveView instrumentation helpers and updated typespecs. If you’re not an AppSignal user yet, make sure to check out the product tour and see how errors, performance, host metrics and triggers all come together in one tool.

Configuration has long been a hot topic in the Elixir community, and luckily, in the recent months, there has been a great deal of thoughtful work put into making this problem an easier one to solve. Today, we’re going to show you how to migrate from an Elixir application that has been configured with the widely used config/*.exs files at compile-time, to an application that instead uses environment variables for configuration and is configured at runtime.

OutOfMemoryException is a common and frustrating bug, and one of the prime causes of unexpected app shutdown. “Why is this happening now, if the app was working perfectly yesterday?” It’s a question which perplexes both rookie and advanced Android developers the world over. There are a variety of potential causes of OutOfMemory Exceptions, but one of the most common is the memory leak — the allocation of memory in the app which is never released.

One of the challenges when you’re starting out with Development is getting the lay of the land. There are a lot of tools out there. And when one of the goals of Development is continually improving your processes, it’s important for you to understand how those tools might fit in your infrastructure. At the same time, you want to be efficient. You don’t want to add tools that overlap with one another. Or tools that cost more than other effective alternatives.

Last week, we announced NSolid 3.11.1, which introduces Role Based Access Control along with support for Node.js Erbium v12.16.2 and Dubnium v10.20.1. You can read here for more information. NodeSource’s Role Based Access Control feature empowers Org Admins to create, define, manage and assign roles that provide access privileges to distinct user-actions and/or views in the NSolid Console and accounts.nodesource.com.

Lambdas are a powerful feature of the Ruby language. They allow you to wrap logic and data into a portable package. In this post, we’ll cover how and when to use lambdas. You'll also learn about the difference between lambdas and Procs, and the performance profile of lambda functions. The code examples have been tested with 2.6 and 2.7 and should work with most modern Rubys.