Modern Emacs Configuration

A modern, modular Emacs configuration focused on performance, developer experience, and Elixir development.

Features

• 🚀 Fast startup with optimized early-init.el
• 📦 Elpaca package manager - Modern alternative to package.el
• ⌨️ Meow modal editing with Dvorak layout optimization
• 🧠 AI-powered development with GitHub Copilot and Claude Code IDE
• 🔍 Modern completion with Corfu + Cape + Vertico + Marginalia
• 🛠️ LSP support via Eglot with performance boosters
• 💎 Elixir-focused with ExUnit testing integration
• 🎨 Beautiful themes with Doom themes and Nerd icons
• 📱 Integrated terminal with Vterm and Fish shell

Quick Start

Prerequisites

• Emacs 28+ with native compilation support
• Git for package management
• Nerd Font - Specifically "Sarasa Mono J Nerd Font" and "Sarasa UI J Nerd Font"
• Fish shell (optional, for terminal integration)

Installation

Clone directly to your .emacs.d directory:

# Backup existing config if you have one
mv ~/.emacs.d ~/.emacs.d.backup

# Clone this configuration
git clone --recursive https://github.com/rockneurotiko/emacs.d.git ~/.emacs.d

Or clone to a different location and symlink:

git clone --recursive https://github.com/rockneurotiko/emacs.d.git ~/path/to/emacs.d
ln -s ~/path/to/emacs.d ~/.emacs.d

First Launch

On first launch, Emacs will:

1. Bootstrap the Elpaca package manager
2. Install all required packages automatically
3. Set up fonts and themes

This process may take a few minutes on the first run.

Configuration Structure

• init.el - Main configuration entry point
• early-init.el - Performance optimizations and early setup
• settings/ - Modular configuration files:
  • meow-settings.el - Modal editing setup
  • eglot-settings.el - LSP configuration
  • org-settings.el - Org-mode setup
  • treesit-settings.el - Tree-sitter configuration

Key Bindings

This configuration uses Meow modal editing with a Dvorak-optimized layout. Key highlights:

Leader Key Commands (SPC)

• SPC f - Find file
• SPC b - Switch buffer
• SPC g - Magit status
• SPC p - Project commands

Search & Navigation

• C-c r p - Ripgrep search in project
• C-c r f - Search current file
• C-c SPC - Avy jump to character
• M-s M-l - Consult line search

Development

• C-c C-' - Claude Code IDE menu
• Tab - Copilot accept completion
• C-. - Embark actions
• C-c g - Magit status

Language Support

Elixir Development

• LSP: Automatic setup with ElixirLS
• Testing: ExUnit integration for running tests
• Formatting: Automatic formatting on save
• Project detection: Automatic detection of Mix projects

Additional Languages

• Tree-sitter support for modern syntax highlighting
• Eglot LSP integration for multiple languages
• GraphQL mode support

Optional Dependencies

For enhanced functionality, install these optional tools:

Development Tools

# Elixir (if doing Elixir development)
# Install via your system package manager

# Ripgrep for fast searching
sudo pacman -S ripgrep  # Arch Linux
brew install ripgrep    # macOS

Customization

Authentication

For Claude Code IDE and other services, configure authentication in ~/.authinfo or ~/.authinfo.gpg:

machine aider.chat login anthropic password your-api-key
machine aider.chat login anthropic-url password your-base-url

Fonts

The configuration expects specific fonts. If you prefer different fonts, modify these variables in init.el:

(defvar rock/fontname "Your-Font-Name")
(defvar rock/fontname-variable "Your-Variable-Font-Name")

Troubleshooting

Common Issues

Slow startup: First launch installs packages and may be slow. Subsequent launches should be fast.

Missing fonts: Install the required Nerd Fonts or modify font settings in init.el.

LSP not working: Ensure language servers are installed (e.g., ElixirLS for Elixir).

Performance

This configuration is optimized for performance with:

• Deferred package loading
• Native compilation
• Garbage collection tuning
• Early initialization optimizations

Contributing

This is a personal configuration, but suggestions and improvements are welcome via issues or pull requests.

License

BeerWare