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Mise

Mise is a tool for managing Software environments. It allows you to easily install and switch own versions of Python, Node.js, Ruby (replacement for RVM), Rust and Go (Golang).

Python

To install own version of Python using Mise, follow these steps:

Install the Python interpreter

Mise is globally installed and ready to use. You can install a specific Python version by running the following command:

$ TMPDIR=~/.tmp mise install [email protected]

This will download and install Python version 3.13. You can check installed Python versions by running:

$ mise list

Activate new Python

Add ~/.local/share/mise/installs/python/X.Y.Z/bin to $PATH by executing:

$ eval "$(mise env -s bash [email protected])"

or add the new $PATH to ~/.bash_profile to apply the environment automatically during every login:

$ mise env -s bash [email protected] >> ~/.bash_profile

Install ipython (optional)

After installing Python, you may want to install IPython, an enhanced interactive Python shell:

$ mise exec [email protected] -- pip install ipython

Once installed, you can start an interactive IPython session by running:

$ mise exec [email protected] -- ipython

Node.js

To install Node.js using Mise, follow these steps:

Install the Node.js runtime

Mise is globally installed and ready to use. You can install a specific Node.js version by running the following command:

$ TMPDIR=~/.tmp mise install node@22

This will download and install Node.js version 22. You can check installed Node.js versions by running:

$ mise list

Activate new Node.js

Add ~/.local/share/mise/installs/node/X.Y.Z/bin to $PATH by executing:

$ eval "$(mise env -s bash node@22)"

or add the new $PATH to ~/.bash_profile to apply the environment automatically during every login:

$ mise env -s bash node@22 >> ~/.bash_profile

Install Yarn (optional)

After installing Node.js, you may want to install Yarn, an alternative package manager to npm:

$ mise exec node@22 -- corepack enable
$ mise exec node@22 -- npm install -g yarn

To verify the installation:

$ mise exec node@22 -- yarn --version

Ruby

To install Ruby using Mise, follow these steps:

Install the Ruby interpreter

Mise is globally installed and ready to use, you can install a specific Ruby version by running the following command:

$ TMPDIR=~/.tmp mise install [email protected]

This will download and install Ruby version 3.3. You can check installed Ruby versions by running:

$ mise list

Activate new Ruby

Add ~/.local/share/mise/installs/ruby/X.Y.Z/bin to $PATH by executing:

$ eval "$(mise env -s bash [email protected])"

or add new $PATH to ~/.bash_profile file to apply enviroment automatically during every login:

$ mise env -s bash [email protected] >> .~/.bash_profile

Install Bundler (optional)

After installing Ruby, you may want to install bundler to manage your project's gems:

$ mise exec [email protected] -- gem install bundler

Rust

To install your own version of Rust using Mise, follow these steps:

Install the Rust toolchain

Mise is globally installed and ready to use. You can install a specific Rust version by running the following command:

$ TMPDIR=~/.tmp mise install [email protected]

This will download and install Rust version 1.76. You can check installed Rust versions by running:

$ mise list

Activate new Rust

Add ~/.local/share/mise/installs/rust/X.Y.Z/bin to $PATH by executing:

$ eval "$(mise env -s bash [email protected])"

or add the new $PATH to ~/.bash_profile to apply the environment automatically during every login:

$ mise env -s bash [email protected] >> ~/.bash_profile

Install Cargo Edit (optional)

After installing Rust, you may want to install cargo-edit, which adds useful commands for managing dependencies:

$ mise exec [email protected] -- cargo install cargo-edit

With cargo-edit, you can:

Golang

To install your own version of Go (Golang) using Mise, follow these steps:

Install the Go runtime

Mise is globally installed and ready to use. You can install a specific Go version by running the following command:

$ TMPDIR=~/.tmp mise install [email protected]

This will download and install Go version 1.24. You can check installed Go versions by running:

$ mise list

Activate new Go

Add ~/.local/share/mise/installs/go/X.Y.Z/bin to $PATH by executing:

$ eval "$(mise env -s bash [email protected])"

or add the new $PATH to ~/.bash_profile to apply the environment automatically during every login:

$ mise env -s bash [email protected] >> ~/.bash_profile

Install golangci-lint (optional)

After installing Go, you may want to install golangci-lint, a fast and flexible linter for Go projects:

$ mise exec [email protected] -- go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest

Once installed, you can verify it by running:

$ mise exec [email protected] -- golangci-lint --version

Rebuild

  • Reinstall Python:

To reinstall a specific version of Python, use:

$ TMPDIR=~/.tmp mise reinstall [email protected]
  • Reinstall Node.js:

To reinstall a specific version of Node.js, use:

$ TMPDIR=~/.tmp mise reinstall node@22
  • Reinstall Ruby:

To reinstall a specific version of Ruby, use:

$ TMPDIR=~/.tmp mise reinstall ruby-3.3
  • Reinstall Gems:

To reinstall all gems for the current Ruby version, run:

$ gem pristine --all
  • Reinstall Rust:

To reinstall a specific version of Rust, use:

$ TMPDIR=~/.tmp mise reinstall [email protected]
  • Reinstall Golang:

To reinstall a specific version of Go (Golang), use:

$ TMPDIR=~/.tmp mise reinstall [email protected]

Variables for Passenger

To set environment variables for your project, you can add them to the ~/.bash_profile file (e.g., export TESTENV=1). These variables will be visible to the application when launched by Passenger.

Warning

Variables will not be used from ~/.bashrc or ~/.shrc.

Plugins

Mise manages different programming language versions and runtimes using plugins. Most plugins are automatically installed when you install a language version, so you typically don’t need to install them manually.

Listing Available Plugins

To see a list of all available plugins in the Mise registry, run:

$ mise registry list

Installing a Language (Plugin Auto-Installation)

Plugins in Mise are automatically installed when you install a language version. For example, to install Lua 5.4:

$ TMPDIR=~/.tmp mise install [email protected]

Mise will automatically fetch the Lua plugin if it isn’t already installed and then install Lua 5.4.

Listing Installed Plugins

To check which plugins are installed on your instantion, run:

$ mise plugins list

Updating Plugins

To update all installed plugins to their latest versions:

$ mise plugins update

To update a specific plugin:

$ mise plugins update lua

External references