Emacs Configuration

A modular, performance-optimized Emacs configuration for software development with 33+ specialized modules.

Features

• Modern Development Environment: Eglot LSP, Tree-sitter, multiple language support
• Smart Configuration Reloading: Non-blocking reload with byte-compilation support
• CUA Mode Integration: Standard copy/paste keybindings with intelligent mode-specific handling
• Emergency Recovery: Built-in diagnostics and fixes for common issues
• Completion System: Company mode with multi-backend support
• Applications: Email (mu4e), RSS reader (Elfeed), Portfolio tracker

Quick Start

Installation

1. Clone this repository to ~/.config/emacs/:

git clone <repository-url> ~/.config/emacs

2. Start Emacs. The configuration will automatically install required packages on first run.

Key Bindings

Configuration Management

• C-c C-r - Reload configuration (non-blocking)
• C-u C-c C-r - Reload configuration (blocking)
• C-c r - Reload current file only
• C-c R - Fast reload using byte-compiled files

Emergency Fixes

• C-c C-! - Emergency restore editing capability
• C-c C-? - Diagnose editing issues

Development

• M-x enable-dev-mode-modern - Enable Eglot-based development
• M-x enable-dev-mode - Enable LSP-mode (legacy)

Applications

• C-x w - Open Elfeed RSS reader
• C-c $ - Open portfolio tracker

Architecture

Directory Structure

~/.config/emacs/
├── init.el                 # Main initialization file
├── early-init.el          # Early startup optimization
├── lisp/                  # Configuration modules
│   ├── init-core.el      # Package management
│   ├── init-ui.el        # UI configuration
│   ├── init-editor.el    # Editor settings
│   ├── init-eglot.el     # LSP client
│   └── ...               # 30+ more modules
├── CLAUDE.md             # AI assistant guidance
└── README.md            # This file

Module Categories

Core System

• Package management with use-package
• Company completion system
• CUA mode configuration
• UI themes and display settings

Development Tools

• Eglot (built-in LSP)
• Tree-sitter support
• Git integration (Magit)
• Project management

Language Support

• Python, JavaScript, TypeScript
• Go, Rust, C/C++
• Ruby, Java, Kotlin
• Markdown, YAML, JSON

Applications

• mu4e email client
• Elfeed RSS reader
• Portfolio tracker (somehwat work in progress)
• Org mode enhancements

Commands Reference

Configuration Management

M-x reload-emacs-config        # Non-blocking reload
M-x reload-emacs-config-fast   # Fast reload (byte-compiled)
M-x reload-emacs-config-smart  # Smart reload (only changed)
M-x byte-compile-config        # Compile all config files
M-x clean-byte-compiled-files  # Remove .elc files

Package Management

M-x package-refresh-without-proxy  # Refresh bypassing proxy
M-x package-install-without-proxy  # Install bypassing proxy
M-x install-dev-packages          # Install development packages
M-x toggle-proxy                  # Toggle proxy settings

Diagnostics

M-x fix-editing-now             # Emergency restore editing
M-x diagnose-editing-issue      # Diagnose editing problems
M-x diagnose-cua-selection      # Debug CUA mode issues
M-x diagnose-key-conflicts      # Debug keybinding conflicts

Customization

Adding New Modules

1. Create a new file in lisp/ directory (e.g., init-myfeature.el)
2. Add configuration using use-package format
3. Load it in init.el:

(require 'init-myfeature)

Disabling Modules

Comment out the corresponding require statement in init.el:

;; (require 'init-module-name)

Personal Configuration

Create personal-config.el in the root directory for personal settings that won't be committed to version control.

Performance Optimization

Byte Compilation

Speed up startup by byte-compiling configuration:

emacs --batch --eval "(byte-compile-config)"

Startup Profiling

M-x emacs-init-time  # Show initialization time
M-x profiler-start   # Start profiling
M-x profiler-report  # View profiling results

Troubleshooting

Editing Disabled

If you can't type or edit:

1. Press C-c C-! for emergency fix
2. Run M-x fix-editing-now
3. Check with M-x diagnose-editing-issue

Package Installation Issues

If packages fail to install:

1. Try M-x package-refresh-without-proxy
2. Toggle proxy with M-x toggle-proxy
3. Manually refresh: M-x package-refresh-contents

Slow Startup

1. Byte-compile configuration: M-x byte-compile-config
2. Use fast reload: C-c R
3. Check startup time: M-x emacs-init-time

Keybinding Conflicts

1. Run M-x diagnose-key-conflicts
2. Check CUA mode: M-x diagnose-cua-selection
3. Review mode-specific keybindings

CUA Mode Special Handling

The configuration intelligently manages CUA mode (standard C-c/C-v/C-x keybindings) by automatically disabling it in modes that need single-key commands:

• Magit (git interface)
• Dired (file manager)
• Elfeed (RSS reader)
• Special read-only buffers

Requirements

• Emacs 29.1 or later (for Tree-sitter support)
• Git (for Magit)
• ripgrep (optional, for fast searching)
• Language servers for development (installed automatically per language)