Paul Tagliamonte wrote a UEFI binary for a joke in his work's slack instance, aiming to boot directly to an image of Kier Eagan.He used the uefi crate to create the binary, making the process surprisingly easy and clean.To circumvent an issue with the image crate not building against the uefi target, he used ImageMagick for pre-computing pixels from a jpg.He compiled the image into the Rust binary and wrote code to handle moving bytes and displaying on the UEFI GOP.The process involved setting up the UEFI GOP through the UEFI crate and capping the resolution to match the display.After successful testing in QEMU, he then proceeded to test the UEFI binary on a physical machine by formatting a USB stick and booting from it.Steps included formatting the USB, disabling Secure Boot, signing the UEFI binary, and booting the system successfully with Secure Boot enabled.He acknowledged the advancements in UEFI protocols and tooling, appreciating the ease and maturity of the process.In conclusion, Tagliamonte highlighted the joy of working on custom UEFI binaries, praising the uefi crate and the overall experience.Overall, the project was successful, showcasing the progress and effectiveness of modern UEFI booting compared to traditional kernel booting.