Ghost Shell: Memory Safety in the Terminal

The terminal is where we live. It’s where we type passwords, API keys, and sensitive commands. Yet, many shells are surprisingly lax about memory hygiene.

The Problem: Lingering Secrets

In standard shells, command history and variables often linger in RAM long after they are needed. If a process dumps memory, your secrets are exposed.

The Solution: Zeroization

Ghost Shell implements aggressive zeroization. As soon as a sensitive variable goes out of scope, its memory address is overwritten with zeros.

use zeroize::Zeroize;

struct Secret {
    key: String,
}

impl Drop for Secret {
    fn drop(&mut self) {
        self.key.zeroize();
    }
}

Visuals & Themes

Security doesn’t have to be ugly. Ghost Shell comes with the Cyber-Noir theme out of the box, featuring high-contrast syntax highlighting and a minimal HUD.

Check out the project page for installation instructions.