Stubby is a project that aims to explore and experiment with UEFI firmware and its features. It is based on another one of my projects called newt_stub.

• Stubby can boot from UEFI and print some basic information on the screen.
• Stubby can interact with UEFI protocols and services, such as memory allocation, file system access, and graphics output.
• Stubby can load and execute other EFI applications, such as the shell or the bootloader.

• Linux, macOS or WSL
• A Rust compiler and cargo toolchain.
• A QEMU emulator and OVMF firmware.
• A GNU Make¹ utility.

To build and run stubby, use the following command:

make run-debug

This will compile the stubby binary, create a virtual disk image² with the EFI application, and launch QEMU with OVMF.

To clean up the generated files, use the following command:

make clean

Stubby is licensed under the MIT license. See the LICENSE file for more details.