A screen magnification tool for Linux. Rust implementation inspired by boomer.

• Real-time screen zoom with smooth animations
• Flashlight mode (spotlight effect)
• X11 and Wayland support (unlike the original, which only supports X11)
• Configurable via file
• Low CPU usage when idle

sudo pacman -S mesa libxkbcommon libxkbcommon-x11 wayland

sudo apt install libgl1-mesa-dev libwayland-dev libxkbcommon-dev libxkbcommon-x11-dev

sudo dnf install mesa-libGL-devel wayland-devel libxkbcommon-devel libxkbcommon-x11-devel

Requires Rust 1.70+

git clone https://github.com/AlphaLawless/boomer-rs.git
cd boomer-rs
cargo build --release

# Option 1: User install (recommended)
sudo install -Dm755 target/release/boomer /usr/local/bin/boomer

# Option 2: Via cargo
cargo install --path .

# If installed with Option 1
sudo rm /usr/local/bin/boomer

# If installed with cargo
cargo uninstall boomer

boomer              # Fullscreen mode
boomer -w           # Windowed mode
boomer -d 2         # Delay 2 seconds before capture
boomer --new-config # Generate default config file

Config file is automatically created on first run.

# Boomer configuration
min_scale = 0.01
scroll_speed = 1.5
drag_friction = 6.0
scale_friction = 4.0

Press R to reload config without restarting.

Unlike the original boomer which only supports X11, this Rust implementation includes native Wayland support using the wlr-screencopy protocol. This makes it compatible with modern Wayland compositors like:

• Sway
• Hyprland
• River
• Other wlroots-based compositors

The application automatically detects your display server and uses the appropriate backend (X11 or Wayland).

This project was built with inspiration and references from:

Original Project:

• tsoding/boomer - Original X11-only implementation in Nim by Alexey Kutepov (tsoding)

X11 Implementation:

• X11 Programming Examples
• xfwm4 Source
• Khronos OpenGL/GLX Documentation

Screenshot Capture:

• Fast Screenshots in Linux with OpenCV
• xrectsel - X11 rectangle selection tool
• slop - X11 region selection utility
• scrot - Screenshot utility

Technical Documentation:

• X11 MIT-SHM Extension
• PPM Image Format
• nim-syscall - System call examples

Wayland Support:

• wlr-screencopy protocol - Wayland screenshot protocol
• coffeeispower/woomer - Wayland port inspiration

MIT