A nix flake based Rails 7 development environment powered by devenv.sh.

I made this as their default setup is not based on flakes, and while they have good docs, I wanted something that works with a single nix run invocation for my base defaults.

This is the very base of what I use on every new project:

• latest ruby + rails
• tailwindcss
• language servers for rb+html+js
• a linter (rubocop)
• factory_bot + faker for testing

Usage

To set up everything in one go, run:

PROJECT_NAME=candies nix run github:qirpi/nix-rails7
cd candies
rails new .

NOTE: when prompted to overwrite template files, say no!

If you need more control, use just the template:

mkdir $PROJECT_NAME && cd $PROJECT_NAME
git init --quiet && git branch -M main

nix flake init --template github:qirpi/nix-rails7
git add .
direnv allow . 
rails new .

Dependencies:

• nix the package manager
• currently nix-direnv must also be installed for this to work until I figure out why it doesn't run through nix run.