tl;dr

asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by supporting existing config files, like e.g. .nvmrc or .ruby-version.

Getting Started

1. Disable rbenv
   1.1 Delete or comment out source /home/$user/.rbenvrc in ~/.profile
   1.2 Delete or comment our eval "$(rbenv init -)" in ~/.bashrcor~/.zshrc`
   1.3 To take effect you may have to restart your shell or log out and log in again from your current linux session
2. Install asdf by following the official guide Show archive.org snapshot
3. Install the ruby plugin by following the official guide Show archive.org snapshot
4. Install the node plugin by following the official guide Show archive.org snapshot

Depending on how you installed rbenv, the way of disabling rbenv will vary.

Further Configurations

To add support of version files of other version managers, add the following configuration option to ~/.asdfrc:

legacy_version_file: yes

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For a smooth experience with RubyMine you need to configure asdf in your project settings:

1. File
2. Settings...
3. Languages & Frameworks
   3.1 Ruby SDK and Gems: select your ruby version
   3.2 Node.js: select your node version

ASDF vs. RBENV

Advantages

• Manage multiple runtime version with a single CLI tool
• Large ecosystem of plugins Show archive.org snapshot
• Backwards compatible (.ruby-version, etc.)
• Easily create Show archive.org snapshot a new plugin
• One config file .tools-version
• Shell support
• GitHub Actions

Life Improvements

Alias

Add the asdf-alias Show archive.org snapshot plugin to asdf to get support for managing aliases for your installed versions of ruby, node, etc. Aliases are a neat way of avoiding to install minor versions of your asdf managed tools.

Hooks

To automatically set alias every time you install a new version of a tool, add the following line to your ~/.asdfrc:

post_asdf_install_ruby = asdf alias ruby --auto

Further Improvements

• Supercharging asdf with fzf Show archive.org snapshot
• Automatically install default gems with every new ruby version Show archive.org snapshot