An Ultimate Dev Setup on macOS: Declarative Development Environment with Nix and Homebrew

Repo: https://github.com/mlgruby/dotfile-nix

We’ve all been there. You get a shiny new Mac, crack your knuckles, and get ready to code, and then spend the next 72 hours in a hellscape of package managers, environment variables, and Stack Overflow searches that make you question your career choices.

“It’ll just take an hour to set up,” you lie to yourself, like someone who thinks assembling IKEA furniture will be a fun afternoon activity.

Three days later, you’re in the fetal position, whispering “but it worked yesterday” while cradling an empty coffee pot like it’s your firstborn.

Fear not, fellow digital masochist! I’m about to show you how to create a development environment so bulletproof, so reproducible, that even your cat walking across your keyboard couldn’t mess it up. (OK, that’s a lie — cats operate outside the laws of computer science, but we’ll do our best.)

The Philosophy: Your Machine as Code (Because Clicking is So Last Decade)

“Let’s be honest, manually installing tools and tweaking settings is like trying to build a Lego castle with your eyes closed. It’s messy and frustrating, and you’re bound to step…