Ratatui runs in UEFI firmware without an operating system

A GitHub project demonstrates running Ratatui directly in a UEFI environment. The repository, ratatuefi, removes the need for a traditional operating system. Ratatui, a terminal UI library, is compiled to execute as UEFI firmware. This approach enables text‑based interfaces during early boot stages. The code includes a minimal UEFI loader and example UI components. Developers can build diagnostics or setup tools that run before OS launch. The project showcases how Rust’s safety features work in firmware contexts. Instructions are provided for building and flashing the UEFI binary.