How Ruby Really Uses Memory: On the Web and Beyond — Ruby’s memory allocation algorithm is not quite what you might think. As you add threads, considering the per-thread and across-all-threads impacts are necessary to get a firm picture of what is happening.

Richard Schneeman

Try the Fastest CI/CD Solution for Free — Faster CI/CD means greater productivity for your team and a better experience for your users. Automate your CI/CD pipeline with Semaphore to release 2x faster than with other platforms.

Semaphore 2.0 sponsor

Prism: Build Frontend Web Apps with Ruby and WebAssembly — Designed to feel like virtual DOM-based frameworks, like React, it uses mruby (the lightweight Ruby interpreter) and Emscripten to compile Ruby to WASM ready for the browser.

Prism

The Hidden Cost of The Ruby 2.7 Dot-Colon Method Reference Usage — It’s no secret that some of Ruby’s syntactic sugar comes with a payment to the performance piper. Here’s another fee you might be paying (though the example given is a nice demonstration of using .:, regardless.)

Maciej Mensfeld

Static Typing in Ruby with a Side of Sorbet — A look at the results of adding Sorbet (a type checker for Ruby) to an existing Rails app to see if the juice is worth the squeeze. Their findings? A good experience with small wins but a bright future.

Heroku

Rails 6.0.1 Released — Minor fixes abound.

Official Rails Blog

Agave.com Is Hiring a CTO (Remote or SF Bay Area) — Help us build the modern hiring platform. World-class technical team with a top 250 Rails contributor. Competitive compensation.

Agave

Cloud Platform Engineer - Kubernetes, Cloud Foundry, BOSH — Accelerate your experience and build products that help developers to ship software faster.

anynines

Find a Job Through Vettery — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

Persisted Queries in GraphQL: Slim Down Apollo Requests to Your Ruby Application — The idea behind persisted queries is reducing request size by only sending a query ID that is stored on the backend, which is then retrieved and executed.

Evil Martians

Writing A Program That Writes Itself — Learn about quines and how they make you go “hmmmm…”

Ju Liu

Announcing Square’s New YouTube Channel with Developer Shows — With Square’s new Ruby SDK gem you can run a business, take payments, or be a backend for a kiosk or mobile payment app.

Square sponsor

A Look at Changes Made to Active Storage in Rails 6

Saeloun Blog

Use GitHub Actions for Rails CI with Postgres

Andy Croll

Getting Started with Svelte and Rails 6 — If you are that person that likes to jump on the newer JavaScript frameworks, here you go.

Nikola Đuza

eBook: Best Practices for Optimizing Postgres Query Performance

pganalyze sponsor

Tabulo: A Terminal Table Generator with a DRY, Column-Based API — I could see using this in a live-coding presentation, among other scenarios.

Matt Harvey

Skunk: Combining Code Quality and Coverage to Calculate a 'Stink' Score — Skunk aggregates scores from various code quality and coverage gems. Use it to assess a new code base or keep your code smelling better. If this reminds you of RubyCritic, which we linked last week, Skunk is built upon it!

Fast Ruby

rspec-tap-formatters: TAP Formatters for RSpec 3 — The Test Anything Protocol (TAP) is a “simple text-based interface between testing modules a test harness” with its origin in Perl. Rack for Testing, anyone?

Abhimanyu Singh

How to Find the Unused Routes of a Large Rails App — No gem required. (By ‘unused’, it means either unwritten/unimplemented or which has no view file.)

Rishi Pithadiya