Rails

f:: Ruby, sqlite3

• Ruby on Rails — A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.

Install Ruby on Rails Guide

• Install Ruby on Rails Guide — Ruby on Rails Guides
  • GitHub - jdx/mise: dev tools, env vars, task runner

# Install Homebrew and dependencies
brew install openssl@3 libyaml gmp rust
 
# Install Mise version manager
curl https://mise.run | sh
echo 'eval "$(~/.local/bin/mise activate)"' >> ~/.zshrc
source ~/.zshrc
 
# Install Ruby globally with Mise
mise use -g ruby@3

ruby --version

ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [arm64-darwin25]

Installing Rails

A “gem” in Ruby is a self-contained package of a library or Ruby program. We can use Ruby’s gem command to install the latest version of Rails and its dependencies from RubyGems.org.

gem install rails

rails --version

Rails 8.1.1

Getting Started with Rails

• Getting Started with Rails — Ruby on Rails Guides

Rails Philosophy

• Convention Over Configuration: Rails has opinions about the best way to do many things in a web application, and defaults to this set of conventions, rather than require that you define them yourself through endless configuration files.