Metaprogramming has a reputation for being either magical or dangerous, depending on who you ask. Both reactions are earned. Ruby’s method_missing hook lets you intercept calls to methods that don’t exist and handle

Fat models, skinny controllers was the mantra for years. Then models got fat and we realized that was wrong too. Business logic crammed into ActiveRecord models means models responsible for database persistence, validations,

The number of developers who should have a personal blog and don’t is staggering. Not because they have nothing worth saying — most of them have been solving interesting problems for years —

Ruby has three methods that look similar on the surface but solve distinct problems in method chains: tap, then (aliased as yield_self), and itself. Once you understand what each one is actually for,

Turbo Streams handle real-time updates pushed from the server. Turbo Frames handle a different problem: replacing sections of a page in response to user interaction — clicking a link, submitting a form —

Code review is one of the most consequential daily interactions in software development, and it’s rarely taught explicitly. Most developers learn by osmosis — they absorb the norms of whatever team they first

Ruby’s Enumerable is one of the language’s best features — map, select, reject, reduce, and dozens of other methods that make working with collections feel natural. But every one of those methods is

Every Rails app has secrets — API keys, database passwords, third-party service tokens. The bad old pattern was storing these in environment variables set manually on each server, or worse, hardcoded in config

Most developers have a complicated relationship with LinkedIn. They filled out a profile years ago, accepted a few connection requests, and now get occasional recruiter messages for jobs they’re not interested in while