rbenv-default-gems ☆

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Description:
Auto-installs gems for Ruby installs

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: ruby rbenv gems automation development

Install: brew install rbenv-default-gems

About:
rbenv-default-gems is a plugin for rbenv that automatically installs a predefined list of gems whenever a new Ruby version is installed. It ensures that essential tools like bundler are immediately available, streamlining the setup process for Ruby developers. This eliminates the need for manual gem installation after every Ruby upgrade or fresh install.

Key Features:

Automated gem installation on new Ruby versions
Simple configuration via a default-gems file
Seamless integration with rbenv
Support for specifying gem versions

Use Cases:

Standardizing Ruby environments across a development team
Ensuring 'bundler' is always available after Ruby updates
Automating setup for CI/CD build environments

Alternatives:

chruby – chruby is a minimal Ruby switcher that does not include built-in gem auto-installation, requiring separate tooling for that functionality.

Version History

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