Not yet! grsh is currently in its early stages, and I haven't submitted it to the official Ubuntu/Debian repositories yet.

However, since it's written in Rust, you can easily install it from source on Ubuntu:

Install Rust: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Clone the repo and run: cargo install --path .

I am currently prioritizing the FreeBSD Ports collection, but creating a .deb package or a PPA for Ubuntu is definitely on the roadmap. If anyone wants to help with the packaging, feel free to reach out on GitHub!