A Software Engineers Casual Log

Product engineering, and lately AI.

January 2025 1 entry

19 Log

Experimenting with Server-Driven UIs

An experiment in server-driven UI for mobile: a Rails API describes the screens, components and actions, and a React Native app renders them.

May 2024 1 entry

04 Log

CLI::UI hidden gems 💎

Explore the hidden gems of CLI::UI. Adding links, printing tables & separating frames for better command-line interface experience.

April 2023 1 entry

22 Log

Failing RSpec `have_attributes` with arguments matchers

Why when using have_attributes with multiple argument matchers and only one is a failure, RSpecs fails all the rest of matchers ?

August 2022 1 entry

08 Log

MutationObserver, keep an eye for DOM changes 🧐

MutationObserver lets a script watch the DOM for added, removed or changed nodes, which helps when other scripts on the page rewrite the markup you rely on.

December 2021 1 entry

25 Log

Killing n+1 problems using groups

Fix n+1 update queries by grouping records by their new value: one UPDATE … WHERE id IN (…) per group, plus the Rails update_all version.