DevWatch

macOS status bar app that monitors and kills processes on development ports (3000-3020).

What It Does

• Scans ports 3000-3020 every 2 seconds
• Shows process count in status bar: 0 or N⚠️
• Click to see menu with all running servers
• Kill individual processes or all at once
• Uses SIGTERM → SIGKILL for safe termination

Development

Built with:

• tray-icon - macOS status bar integration
• winit - event loop
• crossbeam-channel - thread communication
• nix - signal handling

Key files:

• src/main.rs - all application logic
• Cargo.toml - dependencies

Build & Run

# Build
cargo build --release

# Run
./target/release/devwatch

The binary is standalone and can be moved anywhere.