There are two failure modes and teams pick one without deciding. Either nobody updates anything until a CVE forces a jump across four major versions in a week, or Dependabot opens eleven PRs

Every one of these ships to production regularly, and none of them are signs that someone is a bad developer. They’re mistakes Rails makes easy — the framework optimises for getting something working

Someone asks for help and you paste forty lines into Slack. It wraps at column sixty, loses its indentation, and scrolls off the channel in an hour. Or you paste a screenshot of

Someone adds RuboCop to a six-year-old Rails app, runs it, and gets 47,000 offences. The obvious next move — rubocop -A and commit — produces a diff touching every file in the repository,

A pre-commit hook that runs your full test suite gets bypassed with --no-verify within a week, and then it may as well not exist. A hook that catches a committed binding.pry in 200

Remote pairing has a bad reputation earned mostly by bad sessions: three hours on a call, one person driving the whole time, the other watching a laggy screen share and drifting into Slack.

Invalid configuration. That’s the whole message. Somewhere in a 300-line YAML file there’s a problem, and the program knows exactly which key, which line, and what it expected — it just chose not

Push a branch, switch to the browser, wait for it to load, click “Compare & pull request”, retype the description you already wrote in your commit message, pick reviewers from a dropdown, submit.

Everyone knows MAJOR.MINOR.PATCH. The spec fits on one page and takes four minutes to read. And yet every library maintainer has shipped a patch release that broke someone, because the hard part was

Somebody commits .DS_Store, someone else adds *.DS_Store to the project’s .gitignore, and three months later there are eleven personal editor entries in a file that’s supposed to describe the project. Meanwhile config/master.key is

You mistype a flag near the start of a long command and hold the left arrow for four seconds to get there. You retype a path you used two commands ago. You press

Most people install Pry, use it as a slightly nicer IRB with a binding.pry breakpoint, and never touch the rest. That’s a shame, because the interesting part isn’t the REPL — it’s that

There’s a genre of blog post that lists forty editor extensions. You install all forty, your editor takes twelve seconds to start, three of them fight over formatting, and you uninstall the lot

You type bundle exec rspec spec/models/ maybe forty times a day. Over a year that’s a few hours of pure keystrokes, and more importantly it’s a few hours of tiny frictions that discourage

A gem is misbehaving and the docs don’t cover your case. You clone it, open the source, and there are 340 files. The instinct is to start at the top of the directory