LazyVim Ubuntu installer

Sets up LazyVim on Ubuntu. Also prepares LazyVim for Ruby development.

Requirements:

• Ubuntu 25.10 or newer

Installation procedure:

To install everything, including the terminal:

• Run ./install

To install just the Alacritty terminal:

• Run ./install-term
• Uninstall gnome-terminal

What this does

• Installs NeoVim from snap, which is newer than the one in apt.
  • Uninstalls apt NeoVim if installed
• Prepares NeoVim for Ruby development
  • Installs Mise which manages installed Ruby instances.
  • Installs nodejs and Ruby via Mise
  • Installs build-essentials and other packages so that Ruby and gems install successfully
• Installs the Alacritty terminal
  • Also installs Nerd Fonts which is required by LazyVim to display all icons properly.

Once the script finishes

• Close this terminal and open a new one (Alacritty), so that Mise activates
• (Optional) uninstall gnome-terminal and only keep Alacritty
• Run nvim from the Alacritty terminal and wait for it to install LazyVim
• Restart nvim - you're welcomed by the LazyVim welcome screen.
• Type in :LazyHealth to check everything's okay
• Install LazyVim/Ruby:
  • open Lazy Extras by pressing x on the main LazyVim screen
  • Search for and install lang.ruby, by pressing x inside the () icon
  • More info: LazyVim Ruby

Further reading

• LazyVim for Ambitious Developers does an excellent job explaining in layman's terms how LazyVim works. A great introduction to LazyVim, read this first.
• Moving Blazingly Fast With The Core Vim Motions to learn how to work with Vim, when you're ready to ditch the mouse.
  • When you're ready to step up your vim game: Practical Vim
• LazyVim for Intellij IDEA developers - if you already know IDEA, this will help you learn LazyVim the IDE part faster.