Have you set your New Year’s resolutions yet? If not, we’re here with some inspiration. Take a page from Michael’s (dev hand)book and write better docs. Or, heed Gabi’s advice and brush up on some essential skills for software devs. Better yet, resolve to improve speed and performance in your Ruby apps and let YJIT do the hard work for you. This and more in your monthly roundup below.

- Your Editor, Ashley Sawatsky

Ruby 3.2’s YJIT is Production-Ready

DEVELOPMENT  •  BY MAXIME CHEVALIER-BOISVERT

In this much-awaited post, Senior Staff Engineer Maxime shares how she and her team worked to make YJIT more robust, more maintainable, and ultimately, production-ready.

Making Your React Native Gestures Feel Natural

MOBILE •  BY ANDREW LO

When it comes to mobile apps on touchscreen devices, small details can make a big difference in the overall look and feel. Andrew demonstrates how to make sure gestures and animations from draggable elements feel natural, making for a better and more intuitive user experience.

How Good Documentation Can Improve Productivity

CULTURE  •  BY MICHAEL CHEMANI

Good documentation has many benefits, but first and foremost it boosts engineers’ productivity. Here are a few tips from Michael on encouraging a strong writing culture.

Monte Carlo Simulations: Separating Signal from Noise in Sampled Success Metrics

DATA SCIENCE & ENGINEERING  •  BY  TOM LOWE

A Monte Carlo simulation can be used to understand the variability of outcomes in response to variable inputs. Tom details how to use a Monte Carlo simulation to identify the data points you need for a trusted sampled success metric, and teaches you how to implement this in Python and pandas so you can do it yourself.

Migrating our Largest Mobile App to React Native

MOBILE •  BY  MAURICIO DE MEIRELLES

Mauricio shares how we prioritized and tracked the huge undertaking of migrating our flagship mobile app to React Native, and the progress we’ve made.

Life at Shopify

We all get shit done, ship fast, and learn. We operate on low process and high trust, and trade on impact. You have to care deeply about what you’re doing, and commit to continuously developing your craft, to keep pace here. Sound like the right place for you?